Biomass
Which of the following is best describe the biomass ?
A) Organic matter that can be converted to fuel
B) Inorganic matter that can be converted to fuel
C) Massive living things
D) All of the above
advantages of biomass :
1-it is in some cases is a major cause of pollution.
2-Research is needed to reduce the costs of production of Biomass based fuels.
3-Some Biomass conversion projects are from animal wastes and are relatively small and
therefore are limited.
4-The use of waste materials reduce landfill disposal
In biomass energy as the moisture content increase the higher heating value:
a. Increase
Increase by Little Amount
Biomass can be converted into
(a) Liquid fuel
(b) Hydrogen
(c) Producer Gas
(d) All of the above
b. Decrease
c. Stay Constant
d.
Q10) one of this is a renewable energy source
abcd-
Nuclear
Oil
Coal
Biomass
1- When the moisture content (% wet basis) during combustion of Biomass decreases, the “Heat
to evaporate moisture” ………………… & the “Heat to evaporate H2O from Hydrogen
combustion” …………………, respectively:
abcd-
Decrease, Increase.
Increase, Constant.
Decrease, Constant.
Decrease, Decrease.
One of the following not example on biomass :
1- Energy crops
2- Biodiesel
3- By-products & Residues
4-Organic waste
1) One of the following is a method of using biomass
1.
2.
3.
4.
Direct burning
Converting biomass to other forms of energy
1+2
Non-of the above
2) Sources of biomass
1-waste
2-wood
3-olive cake
4-all of the above
3) Which of the following is/are the advantages of biomass
1- Biomass is always available and can be produce as a fuel source
2- The use of waste material reduce the landfill disposable
3- Using biomass doesn’t increase the percentage of CO2 in the nature
4- All of the above
1) Fuel from biomass has a sulfur content of
a) 1-2%
b) 0.1-01.2%
c) 5-10%
d) 0.05-0.01%
e) None of the above
2) ………. different materials of biological origin that can be used as primary source energy
a) Coal
b) Petroleum
c) Peat
d) Biomass
None of the above
1-Biomass is always available and can be produced as a renewable resource (T)
2- biomass energy can't use in Steam generation for industrial processes (F)
- biomass is different material of biological origin that can be used as a primary source of energy
:




Wood waste
Food waste
Crop waste
All above
11- biomass is a :


Renewable energy
Nonrenewable energy
1- Methods of using biomass energy:
a- Direct burning
b- Converting it to other forms of energy
c- Recycling
d- a&b
**Biomass can be made by either woody material or non woody material. True
Which statement of the following is correct for Biomass:
abcd-
Biomass reduces need for fossil fuels.
Biomass is always available and can be produced as a renewable resource.
Fuel from biomass has essentially no or very little sulfur (0.1 to 0.2%) or ash content.
All of them.
1) one of these is considered a limitation on the use of Biofuels
(a) cost is the same in the market as gasoline does
(b) sources is hard and they are rare
(c) Non-renewable and are likely to run out any time soon
(d) they are quite expensive to produce
2) One of the mentioned doesn’t consider as biomass usages:
a. Hot water generation
b. Industrial processing as raw materials
c. Electricity generation
d. Solar energy
3) One of the following isn’t an advantage of biomass:
a. Reduction need for fossil fuels
b. Biomass is always available and can be produced as a renewable resource
c. Much money spent on foreign oil
d. Co2 which is released when biomass fuel is burned, is taken in by plants
1) Biomass is used for
A. Heating and cooking
B. Hot water generation
C. Electricity generation
D. All of the above
2) Which statement is true, Biomass …
A. Reduces heat loss
B. Increases indoor air pollution
C. Decreases combustion efficiency
D. Attain a lower heat transfer
2) Biomass is “different materials of biological origin that can be used as a primary source of
energy”
A.
B.
C.
D.
Wood materials
crop waste
animal waste
All of above
2.which sentences is false:
A. reduces need for fossil fuels
B. Biomass is always available and can be produced as a renewable resource
C. Biomass fuel from agriculture wastes maybe a secondary product that adds value to
agricultural crop
D. O2 which is released when Biomass fuel is burned, is taken in by plants
Hydropower
11) The tidal energy of a sea wave is the sum of its:
(a) Mechanical energy & thermal energy
(b) Potential energy & hydropower energy
(c) Potential energy & kinetic energy
(d) Kinetic energy& thermal energy
12) The energy available when the temperature of water at the surface of ocean is different from
that at deeper level is called:
(a) Ocean thermal energy
(b) Sea water energy
(c) Ocean water energy
(d) None of the above
Which of the following has nothing to do with hydropower :
A) Sun
B) Burning
C) Gravity
D) Water cycle
What is a main power of the plant of a hydroelectric energy?
1.dams
2.canals
3.rivers
4.lakes
The approximate overall efficiency ranges in hydropower plants is:
a)
b)
c)
d)
e)
75-95%
20-35%
40-50%
60-75%
None of above
Which is/are correct?
a) The larger the hydroelectric plant, the cheaper the cost per kilowatt to produce the
electricity.
b) The smaller the hydroelectric plant, the cheaper the cost per kilowatt to produce the
electricity.
c) The larger the hydroelectric plant, the more expensive the cost per kilowatt to produce
the electricity.
d) The smaller the hydroelectric plant, the more expensive the cost per kilowatt to produce
the electricity.
e) b + c
One of these hydro power turbines has the highest range of head by meter:
a.Kaplan
b. Tungo
c.Francis
d. Pelton
Power in hydraulic cycle does not depend on:
a) efficiency
c) flow rate
b) density of water
d) head of water
The tidal waves are caused by the periodic rise and fall of oceans. It is associated with the
position of
(a) Moon
(b) Sun
(c) Earth
(d) Sea
The tidal range is the difference between
(a) Water movement speed & high tide
(b) Water movement direction & high tide
(c) Water elevation at high tide & low tide
(d) All of above
1. Which type of energy is directly affected by the water cycle?
A.
B.
C.
D.
Wind energy
Solar energy
Hydropower energy
Geothermal energy
2. In a small hydropower plant, which of the following parts actually generates electricity?
A.
B.
C.
D.
Turbine
Shaft
Generator
Centre tube
5-Ingrediants of hydrothermal resources :
a-water (hydro)
b- heat (thermal)
c- a+b
d- non of the above
9- Impulse turbine ………….
a-totally immersed in water
b-convert kinetic energy of water jet hitting buckets
c-derive power from pressure drop across turbine
d-all of the above
10- is an example of impulse turbine ……
a-propeller turbine
b-cross flow turbines
c-kaplan turbines
d-non of the above
3- One of these isn’t from limitations of hydropower energy:
abcd-
Low operating & maintenance costs.
Variable output – dependent on rainfall and snowfall.
High initial capital costs.
None of the above.
4) In the hydro-Turbines (reaction turbines) is
1- Drive the power from the pressure turbine
2- Example Pelton turbine
3- Totally immerged in water
4- 1+3
55) Consider a mountain stream with an effective head of 25 meters and a flow rate of 600
liters per minute. How ,much power could a hydro plant generate (assume plant
efficiency 83% )?
1- 2.1 KW
2- 2.5 KW
3- 2.1 MW
4- 1.3 KW
3) Hydropower currently meet about ………of the worlds electricity needs
a) 3%
b) 16%
c) 25%
d) 35%
e) None of the above
4) ………… is long pipe that carries the water flowing from the reservoir towards the
power generation unit,where the water flowing possesses kinetic and potential energy
a) The penstock
b) Power line
c) Pipe flow
d) Water return pipe
e) None of the above
1) The medium hydropower operates in the range
a) 15-100 MW
b) 15-150 MW
c) 1-50 MW
d) 50-100 MW
2) One of the statements below is incorrect about hydropower
a) Dispatchable with storge capacity
b) Long life time
c) Low operating and maintenance costs
d) Scalable from 10 KW to 2000 MW
1) Hydropower currently meets about ………..of the world electricity needs:
a) 16%
b) 20
c) 30 %
d)50%
2) the type of turbine used in the hydro electric power plant depend on:
a. Height of the reservoir
b.quantity of the turbine
c.total power generation capacity
d. all of the above
3) Medium hydro produced
a.
b.
c.
d.
More than 100 MW
15-100 MW
7-15 MW
1-15 MW
4) The place in which water is stored behind the dam and located at higher level than the dam
structure is called:
a) Lake
b) Water reservoir
c) Water fall
d) None of the above
-How much energy (E) will the hydro plant generate each year (Assume the power is 2.1 kW )?
1- 18,396 kWh
2- 16,450 KWh
3- 30,785 KWh
4- 14,500 KWh
4- the type of turbine used in the hydroelectric power plant depends on :




The height of the reservoir
Quantity of water
The total power generation capacity
All above
5- the higher the height of water the more its :



Potential energy
Kinetic energy
Mechanical energy
3)pico hydro system is used yo produce electricity for arrange of?
a)5 kw to 100 kw b) a few hundred to 5 kw c)100kw to MW d) 1MW to 15MW
One of the following components of hydropower plants holds back water in the reservoir:
abcd-
Control Gate.
The Pentstock.
Dam
Transformer
One of the following can be considered as a mini-hydro system:
abcd-
Up to 5 kW
5 kW- 100 kW
100 kW- 1 MW
1 MW-15 MW
Hydropower currently meets about _ _ _ _ of the world’s electricity needs:
abcd-
16%
20%
10%
8%
Which statement isn’t correct about Hydropower energy:
abcd-
High operating and maintenance cost.
Long lifetime.
Dispatchable with storage capacity.
Variable output –dependent on rainfall and snowfall.
***There are two different kinds of turbines, impulse and reaction. True
3) Which of the following has nothing to do with hydropower?
A. Burning
B. Gravity
C. Sun
D. Water cycle
2) Which statement is not true about the hydroelectric plant
(a) Losses are due to Frictional drag and turbulence of flow and Friction and magnetic losses in
turbine & generator
(b) The larger the hydroelectric plant, the cheaper the cost per kilowatt to produce the electricity
(c) The have higher efficiency compared with other renewable resources
(d) All the Statements are true
Q7. Is energy that comes from the force of moving water, the fall and movement of water is part
of a continuous natural cycle:
a. Thermal energy
b. Electrical energy
c. Hydropower energy
d. Wind energy
Q8. Large hydropower energy rate provides:
a. Less than 100 MW feeding into a large electricity grid
b. More than 100 MW feeding into a large electricity grid
c. 15-100 MW usually feeding a grid
d. In the range of 100 KW – 1MW
Turbine
7.the overall efficiency of advanced gas reactor?
-40%
-33%
-41%
-38%
One of the categories is not correct about reaction turbine :
A) Derive power from pressure drop across turbine
B) No pressure drop across turbines
C) Totally immersed in water
D) Angular & linear motion converted to shaft power
As steam expands in turbine :
A) Its pressure increases
B) Its specific volume increases
C) Its boiling point increases
(D) Its temperature increases
*Reaction Turbines
o Derive power from pressure drop across turbine
o Totally immersed in water
o Angular & linear motion converted to shaft power
o Propeller, Francis, and Kaplan turbines.
*Impulse Turbines
o Convert kinetic energy of water jet hitting buckets
o No pressure drop across turbines
o Pelton, Turgo, and cross flow turbines.
1- Gas turbine performance rating depends on :
a-Compressor efficiency
b-condenser efficiency
c- Combustor efficiency
d- all of the above
2- Simple cycle gas turbine used for power generation has a thermal efficiency of
………………. Since 1 kwh is theoretically equivalent to 3415 Btu .
a-34%
b- 75 % c- 100%
d- non of the above
31) The figure shows the principle work of impulse turbine:
1- True
2-False
1) Which of the following an impulse turbine
1- Turgo
2- Francis
3- Propeller
4- Kaplan
2) Which of the following turbines used for large head (H>500meter)
1- Kaplan
2- Propeller
3- Francis
4- pelton
7-all of these are reaction turbines except ……….. :
(a) propeller (b) Pelton (c) Kaplan (d) Francis (e)none
8-Choose the statement that not correct about reaction turbines :
(a) Convert kinetic energy of water jet hitting buckets
(b) Derive power from pressure drop across turbine
(c) Totally immersed in water
(d) Angular & linear motion converted to shaft power
(e)Propeller, Francis, and Kaplan turbines.
7)the steam turbine consist of a stator and rotor , the stator consist of_________ while the rotor
consist s of___________
On disck.
a)moving blades , fixed blades
b) moving blades, moving blades
c) fixed blades, moving blades
d) fixed blades, fixed blades
9) the radial flow gas turbine is similar in appearance to :
a) centrifugal compressor
b)circulation pump
c)head pump
d)a+c
) All of sentence regards to reaction turbine except:
a) Derive power from pressure drop across turbine
b) Totally immersed in water
c)propeller ,Francis, and Kaplan turbines
d) Convert kinetic energy of water jet hitting buckets.
2) The type of turbine used in the hydroelectric power plant depends on the height of the
reservoir, quantity of water and the total power generation capacity (T)
3) In Impulse Turbines No pressure drop across turbines (T)
4) The turbine which work on the lowest ranges head is
a-) Kapaln
b-) Pelton
c-) Turgo
d-) Francis
5) Which of the following is the type of turbines ?
1-Vertical Axis Turbine
2- PeltonTurbine
3- Horizontal Axis Turbine
4-Yawing Turbine
the function of the control valves in steam turbine is :



Control the
Operate emergency valves fluid line
Adjust the steam flow in to the turbine
10)well designed turbines have a polytropic efficiency can reach to :
a)70% b)80% c)85% d)90%
3) Choose the wrong answer for reaction hydro turbine:
a) Angular & linear motion converted to shaft power
b) No pressure drop across turbines
c) Totally immersed in water
d) Derive power from pressure drop across turbine
e) None of the above
3) The type of turbine used in the hydroelectric power plant depends on the
(a) Height of the reservoir
(b) Quantity of water
(c) Total power generation capacity
(d) All The above
4) One of the following is not an advantage of super-heated steam:
a) Steam consumption of the engine or turbine is reduced
b) Erosion of turbine blade is generated
c) Efficiency of the steam plant is increased
d) Losses due to condensation in the cylinders and the steam pipes are reduced
e) None of the above
5) The steam turbine output is usually greater than the Gas turbine output by:
a) 6:1
b) 9:1
c) 16:1
d) 20:1
e) None of the above

The problems associated with wet steam in turbines _________are and_______
Corrosion of turbine blades and lower turbine efficiency
Major part of the work developed in the turbine is used to derive the compressor.
Therefore,
Net work output of the plant is low
Coal
2) Pulverized coal is
(A) coal free from ash
(B) non-smoking coal
(C) coal which bums For long time
(D) coal broken into fine particles
What are the properties which are important in identifying the suitability of a coal for any given
application :
A)
B)
C)
D)
Size
Sulfur content
Grindability
All of the above
How much currently the coal represent of total energy needs in the U.S :
A) 23%
B) 60%
C) 2%
D) None of the above.
which sentences is correct relative to peat :
1)
2)
3)
4)
5)
use direct in any application
doesn't contain water
must be dry before use
it the final stage of formation of coal
all of them
What is the form of oxide of sulfur exists in the atmosphere :
6) Sulfur dioxide
7) Hydrogen sulfide
8) 1+2
9) Sulfur monoxide
10) Non of these
As the coals becomes harder
a) Their carbon content and the amount of heat released increases.
b) Their carbon content and the amount of heat released decrease.
c) Their carbon content increase and the amount of heat released decrease.
d) Their carbon content decrease and the amount of heat released increases.
e) None of the above
As the rank of a coal increases:
1-
carbon content increases and hydrogen content decreases
2-
carbon content decreases and hydrogen content decreases
3carbon variable decreases and hydrogen content decreases.
4-oxygen content increases
Coal formation of dead plant material does not require:
1-burial
2-pressure
3-heat
4- air
The peat is:
a. Accumulation of partially decayed vegetation matter
b. The second step in the formation of coal.
C. The third stage of coal formation.
d. None of the above
Ash content of coal can be reduced by
(A) slow burning
(B) washing
(C) pulverizing
(D) mixing with high grade coal
Which of the following artificial isotopes can be found many smoke detectors:
(a) Technetium
(b) Neptunium
(c) Americium
(d) Curium
(e) Einsteinium
What conditions from the following can be considered ideal for forming Coal?
a) Oxygen
b) No Oxygen
c) Nitrogen and Oxygen
d) Heat and Oxygen
Which statements of the following is correct concerning Bituminous
a) Bituminous coal is the second stage of coal formation
b) Coal does not need any additional pressure at this stage
c) It is of higher quality than lignite coal but poorer quality than anthracite coal
d) All of the above
In what stage of forming coal Anthracite is formed?
a) 1st stage
b) 2nd stage
c) 3rd stage
d) 4th stage
One of the following is a product of coalification:
A. Diamond
B. Legnite
C. Silver
D. Steel
2. Is an accumulation of partially decayed vegetation matter and is the first stage in the formation
of coal:
A. Peat
B. Lignite
C. Bituminous
D. Anthracite
3- depending upon specific combustion conditions the burning process of volatile matter and
coal char may take place : ……………………..
a- simultaneously and sequentially b-with over lapping
c- a+b
d- non of the above
6-one of these is not a form of the basic stages of coal combustion process:
a-the release of the volatile matter resulting from the heating coal
b-the burning of the released volatile
c-the burning of the remaining char
d- non of the above
7- Technology to produce clean energy out of coal fired power plants:
a-desulphurization technology
b-geothermal technology
c-nuclear technology
d- non of the above
Q1) One of the following is energy source which not formed from marine organisms, but from
the remains of land plants
a- Nuclear energy
b- Wind energy
c- Coal
d- Hydropower energy
Q2) Brown coal is inefficient to transport and is not traded extensively on the world market
compared to higher coal grades because of
abcd-
High energy density
Low energy density
Crystal structure
None of the above
Q3) The third stage of coal formation called
abcd-
Bituminous
Peat
Anthracite
None of the above
2- Which sentence is wrong about Coal:
abcd-
Coal provides approx. 25% of the total U.S. energy needs.
Coal fuels approx. have a range of 30 MJ/kg.
The formation of Coal works best under anaerobic conditions.
The highest grad of Coal is Bituminous Coal.
1) The formation of Coal from dead plant matter requires:
a) Heat + Time
c) burial + pressure
b) Heat + pressure
d) a+b
2) Which of the following is incorrect :
a) Peat is the last stage in the formation of Coal
b) Peat forms in wetlands and bogs
c) It contains a large amount of water and must be dried before use
d) Peat is an accumulation of partially decayed vegetation matter
3) The third stage of coal formation is :
a) Bituminous
c) Peat
b) Lignite
d) Anthracite
4) The most valuable and highest grade of coal and has a high carbon content is:
a) Bituminous
c) Peat
b) Lignite
d) Anthracite
c)
d)
e)
f)
g)
h)
The main disadvantage for coal power plant
1- Problem of handling
2- Problem of storing
3- Problem of the feeding to the system
4- All of the above
5) ………….. an accumulation of partially decayed vegetation matter is the first stage in the
formation of coal.
a) Coal
b) Lignite
c) Coking coal
d) Peat
e) None of the above
6) 1 metric tone of uranium fuel =
a) 12 million barrels of oil
b) 3 million metric tones of coal
c) 6 million metric tones of coal
d) a+b
e) none of the above
3) The ultimate coal analysis divided into two methods
a) Moisture –ash free and fixed carbone
b) As-burned and fixed carbon
c) Moisture –ash free and as burned
d) As burned and fixed carbon
Right answer (c)
2-On a “per kWh” basis a small diesel generator produces ……………. times the pollution of a
coal power plant :
(a)one (b)two (c) three (d)four (e)five
9-A coal is usually black, sometimes dark brown, often with well-defined bands of bright and
dull material :
(a) bituminous (b) peat (c) lignite (d) anthracite (e)none
6) Which of the following coal types has a higher ratio of carbon
1- Beat
2- Lignite
3- Bituminous
4- Anthracite
5- The base load power plant works on
1-oil
2-coal
3-hydrogine
4-compustion turbines
3) The peak load power plant works on
1-nuclear
2-coal
3-solar
4-diesel engine
Anthracite produces…………the energy of lignite
1-equal
2-twice 3-thrice 4-none of the above
As the carbon content in coals decreases, their becomes………. And release………..amount of
heat.
1234-
soft, high
harder, high
soft, low
harder, low
1) One of the following is correct :
a) As the rank of coal increases its carbon content increases
b) As the rank of coal increases its carbon content decreases
c) As the rank of coal increases its carbon content remains unchanged
d) As the rank of coal increase its oxygen content increases
2) The formation of coal from dead plant matter requires?
A) Burial
b) Pressure
c) Heat
D) Time
e) All of the above
3) Bituminous Coal is the second stage of coal formation (F)
4) Coal Energy used in industry as a source of heat energy (T)
5) which coal type is formed under the least amount of pressure?
A)
B)
C)
D)
Peat.
Lignite.
Bituminous.
Anthracite.
6) The second step in the formation of coal is:
a. Peat
b. lignite
c.bituminous
d.Anthracite
7) As the amount of carbon increased, the coals becomes:
a.softer,the amount of heat increase
b.harder,the amount of heat increase
c.harder,the amount of heat decrease
d.softer,the amount of heat decrease
From studying the formation of Coal, which statement is correct:
abcd-
The greater the carbon to oxygen ratio the harder the coal.
The lower the carbon to oxygen ratio the harder the coal.
Carbon to oxygen ratio doesn’t give an indication about the hardness of Coal.
None of the above.
Coal sulfur content by weight is about
abcd-
1.5%
2%
2.5%
3%
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abcd-
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2. tigti of ra r.
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4. yasria shhghra.
5. egg ft ria shfla
6) Which One of these properties is not important in identifying the suitability of a coal:
a) Size
b) How coal burn
c) Geometry of coal
d) Ash-softening temperature
e) None of the above
7) The formation of coal from dead plant matter doesn’t require:
A . Burial
B. Temperature
C. Heat
D. Pressure
6) Anthracite is the most valuable and highest grade of coal , and has a carbon content
percentage of :
a. 90-100 %
b. 50-69 %
c.92-98%
d.95-98%
Q5. One of the following statement is true:
A- As the rank of a coal increases , its carbon
content increases , the hydrogen content decreases , oxygen content decreases
B-As the rank of a coal increases ,its carbon content increases from 80 % to 90 % , also
hydrogen content increases
C- Oxygen content increases from 3% to 20% as the rank of a coal increases.
D- Both O2 and H2 decrease as the rank of a coal decreases
Q6. Is the energy obtained from burning a fuel if the combustion products are cooled down to the
temperature at which water vapor coming out of the combustion condenses:
a. Lower heating value (LHV)
b. Calorific value
c. Specific heat energy
d. Higher heating value (HHV)
1. The formation of coal from dead plant matter requires :
A.
B.
C.
D.
burial
pressure
heat and time
all of above
Nuclear
6) Uranium is:
(a) Artificially produced in nuclear reactors
(b) A naturally occurring material found in numerous minerals
(c) A waste byproduct of nuclear reactors
(d) Created in special nuclear reactors
(e) Created in a special particle accelerator
7) Isotopes of an element have a different number of:
(a) Neutrons
(b) Electrons
(c) Protons
(d) Positrons
(e) Neutrinos
Out of the following which one is not a unconventional source of energy ?
A) Tidal power
B) Geothermal energy
C) Nuclear energy
D) Wind power.
4.Which one isn’t one of the application on the non electrical nuclear energy?
-nuclear medicine
-space missions
-nuclear bomb
-industrial (gauging)
5.whats the classification of nuclear reactor?
-purpose
-fuel used
-type of fussion
-all of the above
4- Of the following choices. Which best defines Fission ?
A) Combining atoms
B) Breaking rocks
C) Splitting atoms
D) None of the above
6.which fuel used in pressurized water reactor?
-enriched uranium dioxide
-uranium dioxide
-liquid metal fuel
9.A moderator generally used in nuclear power plants is
1.Graphite
2.heavy water
3.Concrete
4.graphite and concrete
The energy released during the fission of one atom of Uranium - 235 in million electron
volts is about
1.
100
2.
200
3.
300
4.
400
The primary fuel used in nuclear power plants is
1.
U235
2.
U238
3.
Pu239
4.
Pu233
In nuclear power plant ,we will produce mechanical energy in a turbine from :
1234-
The vapor of water
The energy produced from the reactor
Merger nuclei
the solar energy
Which of these incorrect relative to nuclear power plant :
11) The fuel used is uranium
12) The uranium can't use directly in reactor
13) Safety more than other type of power plant
14) The uranium use for long time
15) Doesn’t need air to combustion
When the fuel is removed from a reactor it is unloaded into a storage pond immediately adjacent
to the reactor to:
1234-
decrease radiation levels
increase radiation levels
decrease temperature of fuel
remove impurities from it
Amount of avoided CO2 emissions due to the use of nuclear power in Year 2000 was 2.5 billion
tons of CO2 This quantity is estimated to:
1-10% of total worldwide CO2 emissions
2-50% of total worldwide CO2 emissions
3-20% of total worldwide CO2 emissions
4-5% of total worldwide CO2 emissions
In Nuclear Fission, out of 2.5 neutrons released how many neutrons is used to sustain the chain
reaction.
a. One
b.1.5
c.3
d.0.5
What’s the objective of the moderator in nuclear atomic power plant?
a. limit the number of fuel atoms that can split
b. protect the people working from radiation.
c. reduces the speed of fast moving neutrons.
d. it actually doesn’t exist in nuclear power plants.
One of these isn’t an advantage point for nuclear power plants:
a. space required is less when compared to other power plants.
b. A nuclear power plant uses much less fuel.
c. maintenance cost is very high
d. Nuclear power plant is the only source which can meet the increase demand of electricity at
reasonable cost.
When the fuel is removed from a reactor it is unloaded into a storage pond immediately adjacent
to the reactor to:
1234-
decrease radiation levels
increase radiation levels
decrease temperature of fuel
remove impurities from it
The rods which can be inserted into a reactor core to slow or stop the reaction are known as:
(a) Breaker Rods
(b) Fuel Rods
(c) Moderator Rods
(d) Control Rods
(e) Slower Rods
What statement(s) is correct concering the Uranium?
a) Unstable atom
b) More energy is released each time another atom splits
c) 1 kg of Uranium U235 can produce as much energy as the burning of 4500 tonnes of high
grade variety of coal or 2000 tonnes of oil.
d) All of the above
What are the main 2 types of nuclear power plant?
1) Pressurised Water Reactor (PWR)
2) Boiling Water Reactor (BWR)
The stage of preparing Uranium that separates gaseous Uranium hexaflauride into two streams
is:
a- Mining
b- Milling
c- Conversion
d- Enrichment
The type of nuclear reactor that does not need moderator is:
a- Boiling Water Reactor
b- Liquid Metal Fuelled Reactor
c- Pressurized Water Reactor
d- Advanced Gas Reacto
The most used type of nuclear reactors is:
a- BWR
b- AGR
c- PWR
d- LMFR
4- common use of neuclear reactors are :
a- generation of electric energy
b- population of ships
c- only a
d- a+b
Q8) One of the following is a way to produce nuclear energy
abcd-
Fission
Fusion
(a+b)
none of the above
Q9) The series of industrial processes which involve the production of electricity from uranium
called
abcd-
The wind energy producing
The coal burning
The nuclear fuel cycle
None of the above
4- The enrichment process requires the Uranium to be in a gaseous form, is called:
abcd-
Fuel fabrication.
Conversion.
Mining & Milling.
Enrichment.
2) The splitting of the nuclei of the atoms causing energy to be released is known as :
a) Nuclear fission
c) Atomization
b) Nuclear fusion
d) Oxidation
3) The joining of the nuclei atoms together is known as :
a) Nuclear fission
c) Atomization
b) Nuclear fusion
d) Oxidation
7) In which type of power plants The circulating water cycle is closed
1-coal power plant
2-biomass power plant
3-nuclear
4-non of the above
8) Which type of nuclear reactors has the highest efficiency
1-AGR
2-PWR
3-BWR
4-LMFR
5-(1+4)
9) Which of the following power plants can meet the increasing demand of electricity at a
reasonable cost :
1-nuclear power plant
2-coal power plant
3-natural gas power plant
5- solar power plant
In nuclear plants, the energy required for vaporization originates in
1- controlled nuclear reaction
2- combustion of the fuel
3- collected and concentrated solar radiation.
5- Non-of the above
the hazards of nuclear power generation.
1) In case of accidents or explosion, the radioactive materials can contaminate vast areas of land,
crops, water, people etc
2) The number of safety measures that has to be considered before setting up a plant makes the
construction of the plant expensive
3) The disposal of radioactive wastes in the fission process is a major problem. Expensive longterm storage areas have to be built
4) They also pose security problems, as the fuel and the by-products can be used to build nuclear
weapons
5-all of the above
Nuclear reactors are normally refueled:
1. When they are decommissioned.
2. When the gauge indicates "empty."
3. Every 12 to 18 months.
4. Every two to four weeks.
51)Nuclear reactors are used
1.
to produce heat for thermoelectric power
2.
to produce fissionable material
3.
to propel ships, submarines, aircrafts
4.
all of these
52)A moderator generally used in nuclear power plants is
1.
Graphite
2.
heavy water
3.
Concrete
4.
graphite and concrete
53)The predominent isotope of the naturally occuring element is
1.
U235
2.
U238
3.
Pu233
4.
Pu239
54)A moderator, in nuclear power plants, is a medium introduced into the fuel mass in order to
1.
slow down the speed of fast moving neutrons
2.
control the reaction
3.
reduce the temperature
4.
extract heat from nuclear reaction
55)Each fission of U235 produces on the average __________ fast neutrons as a product of
reaction.
1.
2.46
2.
24.6
3.
246
4.
2460
-uranium is composed of three major isotopes .. the most abundant and stable being :
(a) uranium-234 (b) uranium-235 (c) uranium-238 (d) uranium-239 (e)non
5-choose the step\s To prepare uranium for use in a nuclear reactor :
(a) mining
(b) milling
(c) conversion
(d) enrichment
(e)all of the above
6-reactor used fuel is liquid metal fuel e.g. uranium in sodium :
(a) advanced gas reactor
(b) pressurized water reactor
(c) boiling water reactor
(d) liquid metal fuelled reactor
(e)none of the above
7) the unstable uranium have the form of
a) U238
b) U237
c) U236
d) U235
e) None of the above
4) He figure below shows
a) Fission reaction
b) Fusion reaction
5) U235+0n1
Ba 141+Kr92+2.50n1+200 MeV energy
The equation represent
a) Fission reaction
b) Fusion reaction
Right answer (a)
10) The control rods in nuclear power plant are made of:
1-steel
2- Cadmium
3-lead (pb)
4-borron
5- boron or cadmium
6- The nuclear reaction that needs atomic pomp to happens
1-fission
2-fusion
3- Reactions like happens in the sun
4-(1+3)
5-(2+3)
) How nuclear energy produced?
a)Large nuclei are split to release energy (Fission).
b)small nuclei are combined to release energy (Fusion).
c) All of the above
2) The kinds of non- electrical application of Nuclear energy
a)Nuclear Medicine
b)Industrial (Gauging)
c)Nuclear propulsion: Fuel for aircraft carriers and submarines
d)Nuclear Bomb
e)all of the above
3) All of sentence regards to Advanced Gas Reactor (AGR) except:
•This reactor use the uranium dioxide as a fuel
•The reactor can be refueled on load which is an operational advantage
•The coolant is CO2
•Its overall efficiency is about 33%
6) in which process is energy released from uranium in nuclear reactors?
A)
B)
C)
D)
Fusion.
Fission.
Combustion.
Electrical discharge.
7) The nuclear energy in the sun produced by :
a-) Enrichment
b-) Fission
c-) Reactor
d-) Fusion
8) In the Advanced Gas Reactor (AGR), the coolant is :
a-) ordinary water
b-) CO2
c-) Refrigerant (R134a) d-) sodium
9) The fuel used in Boiling Water Reactor (BWR) is :
a-) Uranium Dioxide
c-) Enriched Uranium Dioxide
b-) Uranium in Sodium
d-) Natural Uranium
10) Uranium exists as an isotope in the form of:
a. U235 ,stable
b. U235 , unstable
c. U238 ,Stable
d. U238 , Unstable
11) in the nuclear reactor, the function of the control rods is to:
a. limit the number of atoms that can split
b. absorbs neutrons
c. slow down the neutrons released
d. a+b
12) One of these is used as a fuel in the reactor
a. uranium monoxide
b. uranium dioxide
c. CO2
d. O2
2- Which of the following is the Challenge of Nuclear Power in Jordan ?
1234-
The lack of adequate water sources for cooling
The low investment cost
No need skills engineers and technicians
None of the above
One of the following is not true nuclear energy:
abcd-
Less fuel for energy generation is needed.
Large area required for the power plant.
Produces very little harmful emissions.
Nuclear power safety is a global issue.
Which country had the largest percent of nuclear share of electricity generation in 2012:
abcd-
France
Italy
USA
Brazil
**Yellow cake is uranium oxide. True
***Uranium nuclei can be easily split by shooting neutrons at them. True
- the difference between nuclear power plant and thermal power plant is :



The fuel they use to heat the water in the boil
The steam generator is a heat exchanger
The purpose of the coolant pump
8) 1 kg of Uranium U235 can produce as much energy as the burning of :
a) 4500 tons of oil
b) 4500tons of high grade variety of coal
c) 2000tons of high grade variety of coal
d) None of the above
9) The purpose of the pressure equalizer in Pressurized Water Reactor is to:
a) Increasing the pressure
b) Keep it constant
c) Decreasing pressure
d) None of the above
10) The steam from steam generator of a nuclear power plant is best described as
(a) superheated steam (b) supercritical steam (c) saturated dry steam (d) saturated wet
steam
Q9. Nuclear energy can be produced in two different ways
a. Fission, fusion
b. Atomization, fission
c. Chemical Disintegration, fusion
d. None of the above
4) What is fission?
A. Breaking rocks
B. Combining atoms
C. Splitting atoms
D. Splitting cells
5. Some nuclear energy is produced naturally
A.
B.
C.
D.
Sun
nuclear power plants
provide electricity for many cities
None of above
The uranium oxide product of a uranium mill is not directly usable as a fuel for a nuclear reactor
and additional processing is required. The enrichment process requires the uranium to be in a
gaseous form. The uranium oxide concentrate is therefore first converted to uranium
hexafluoride is:
A.
B.
C.
D.
Enrichment
Conversion
Mining and Milling
Fuel Fabrication
Environmental effect
8- the high content of sulphure very often makes extremely efficient ……………………
technology necessary
a- Geothermal
b- Nuclear
c- Solar
d- non of the above
11) The worst thing to do is to prevent the NOx emission from the start by:
a) Lower the flame temperature
b) Do not use cyclone furnaces
c) Higher the A/F ratio
d) Recycle some of the flue gas
e) None of the above
12) Sulfur in the atmosphere exists in three forms on of these is correct:
a) SO
b) SH3
c) S2H
d) H2S
Wind
9) Wind power plants are required to have a large rotor size for large power output
due to:
(a) Low power density of air stream
(b) Lift force acting perpendicular to the direction of wind flow
(c) Lift force being more than drag force
(d) Drag force
- Which one of these disadvantage for Wind Energy
A) The wind is free.
B) Wind turbines have a role to play in both the developed and third world.
C) Many people feel that the landscape should left its natural form for everyone to
enjoy.
D) Wind turbines have a role to play in both the developed and third world.
Which is/are correct?
a)
b)
c)
d)
e)
Wind energy increases proportionally with air.
Density Humid climates have greater air density than dry climates.
Lower elevations have greater air density than higher elevations.
a+b
all of above.
One of the following is not one of the disadvantages of wind energy
a)The strength of the wind is not constant
b) Wind turbines are noisy.
c) Many people feel that the landscape should left in its natural form for everyone to enjoy
d) Wind energy is one of the lowest-priced renewable energy technologies
e)When wind turbines are being manufactured some pollution is produced
Advantages of Wind Energy:
1-Wind turbines have a role to play in both the developed and third world.
2- Many people see large wind turbines as They disfigure the countryside and are generally ugly.
3-The strength of the wind is not constant. There will be times when they produce no electricity
at all.
4-Wind turbines are noisy. Each one can generate the same level of noise as a family car
travelling at 70 mph.
Wind is now meeting ………of Europe’s electricity demand
1234-
7%
35%
90%
50%
Wind turbine rotor consist of:
a. Blades
b. Hub
c. Yawing system
The main disadvantage of wind power is that
(a) It is available only in coastal areas
(b) Wind energy systems are noisy when in operation
(c) Large land area is required
(d) The capacity utilization is less
Which of the following is not a component of the wind power construction ?
a) Rotor
b) Pitch system
c) Frequency converter
d) Batteries
d. (a+b)
Q5) One of the following are not related to vertical axis turbine
abcd-
Have fixed bitch blades
they are more accessible and they don’t need a yaw system
The rotational axis of this turbine must be oriented parallel to the wind
None of the above
2. Is the component that is in line with the direction of the air steam:
A.
B.
C.
D.
The lift force
Wind speed
The drag force
Air density
Q6) Which of the following is way to store wind Energy
abcd-
Pumped Hydro Storage
Compressed Air Storage
Battery Storage
All of the above
5- The figure that shows the relation between velocity of wind and the output power is:
a-
b-
c-
dCorrect choice is d
4) The environmental advantages of the wind power are :
a) No air pollution
c) No greenhouse gases
b) No water pollution
d) all of the above
1. ………… refers to turbines located on land, while …………are located out at sea or
freshwater
A. Offshore turbine, onshore wind
B. Onshore wind, offshore turbine
C. Onshore wind, onshore wind
D. Offshore turbine, offshore turbine
Q4) Offshore turbines are located
a- On land
b- At sea
c- In freshwater
d- (b+c)
1234-
11) When the velocity of the wind increases by 20% the energy of the wind increases by:
80.33%
160.32%
72.8%
does not effect
12) Which is the cheapest way to produce energy:
1-gas
2-nuclear
3-wind
4-hydro
13) The payback period of wind system is:
1-(10-15 years)
2-(2-4 years)
3-(5-10 years)
4-(over 30 years)
14) Which type of pollution that Wind turbines makes:
1-air pollution
2-sound pollution
3-air pollution
4-(1+2)
15) If you combine solar and wind energy it is :
1- bymodal
2- indirect
3- hybrid
5- non of the above
The advantages of the wind power :
1- Clean
2- Available
3- lowest-priced renewable energy
4- Small fraction of the land
6- all of the above
2) is the component that is in line with the direction of the air stream :
a) The Lift force b) The Drag force c) aerodynamic force
d) non of the above
4) is the component that is at right angles to the direction of the air stream:
a) The Lift force b) The Drag force c) aerodynamic force
d) non of the above
10) in wind turbine , If the mechanical energy is then converted to electricity, the machine is
called a :
a) wind generator
b) windmill
c) wind energy converter (WEC)
d) a+c
1-In a wind turbine : If the mechanical energy is used directly by machinery .. the machine called
:
(a)wind generator (b)windmill (c)wind turbine (d)wind energy converter (e)wind power unit
3-one of this statements about the advantages of wind power wrong :
(a)need water for operations
(b)No air pollution
(c) No greenhouse gasses
(d)Inexhaustible supply
(e)Domestic energy source
) From the Advantages of Wind Power for the environment?
–Domestic energy source
–Inexhaustible supply
–Small, dispersed design reduces supply risk
–No greenhouse gasses
2) parts of wind power construction?
1) Rotor blade
2) Cast hub
3) Blade pitch system
4) Generator-rotor Tower
5) All of the above
3) All of sentence regards to advantage of wind speed except?
1. The wind is free
2. Once the wind turbine is built the energy it produces does not cause green house gases or other
pollutants.
3. Although wind turbines can be very tall each takes up only a small plot of land. This is
especially the case in agricultural areas as farming can still continue.
4. The strength of the wind is not constant. There will be times when they produce no
electricity at all.
4) Wind power currently meets about ………..of the
Europe’s electricity needs.
A) 10%
b) 15%
c) 7%
D) 20%
5) Wind energy Decreases proportionally with swept area of the blades (F)
6) The strength of the wind is not constant. There will be times when they produce no electricity
at all (T)
7) In the wind power design the yawing system using to :
a-) Adjusting the pitch of three blocks
b-) Sensors to retrieve information about extend conditions
c-) Aligns the rotor with the wind direction
d-) To reduce friction
8) when we increase the energy of the wind by 3X,the wind speed translate into:
a. 2X
b. 16X
c. 27X
d. 81 X
9) the location of onshore and offshore wind respectively:
a. sea, land
b. sea, sea
c. land, sea
d. land, land
2- Lift aerodynamic force is:
a- Component that is at right angle to the direction of the air stream.
b- Component that is at zero angle to the direction of the air stream.
c- Component that is at cute angle to the direction of the air stream.
d- None of the above
3- Wind energy:
a- Decrease proportionally with swept area of the blades
b- Increase proportionally with swept area of the blades
c- Decrease inversely with swept area of the blades
d- Increase inversely with swept area of the blades
- the advantages of wind turbine are :




Has no pollution
Low cost
The operating life +30 years
All above
wind turbine is a rotating machine which converts the kinetic energy in to :



Electrical energy
Mechanical energy
Chemical energy
One of the following is of the advantages for wind enery ?
1- 1-The strength of the wind is not constant. There will be times when they produce no
electricity at all.
2- 2-Wind turbines are noisy. Each one can generate the same level of noise as a family car
travelling at 70 mph.
3- 3-Many people feel that The landscape should left in its natural form for everyone to
enjoy.
4- None of the above
What is the types of wind turbines ?
1234-
1-Horizontal Axis
Pelton
Horizontal and Vertical Axis
4-Cross flow
4- What is Anemometer:
a- Air pollution measurement device
b- Wind direction device
c- Wind speed measurement device
d- Power measurement device
what is the critical velocity of the steam to ensure that it will separate naturally
a) 3ft/s b) 5ft/s
c) 8ft/s d)10ft/s
The wind turbine operates on a maximum wind speed of:
abcd-
25 m/s
35 m/s
45 m/s
55 m/s
One of the following sentences is not true:
A-Wind turbines are noisy.
B-Wind power could cause pollution.
C-Wind energy decreases with the increase of air density.
D-Wind energy is one of the lowest-priced renewable energy technologies available.
Which statement is correct about wind turbines:
a- Once the wind turbine is built the energy it produces does not cause green house gases or
other pollutants.
b- Wind turbines have a role to play in both the developed and third world.
c- Wind turbines are noisy.
d- All of the above.
_ _ _ _ _ was the world’s largest regional market for wind energy:
abcd-
USA
Asia
Europe
Australi
13) Optimum wind energy is not a function of:
a) Number of turbines
b) Size of turbine
c) Service strategy
d) Distance to shore
e) None of the above
5) Which of the following sources of energy does not get depleted
A. Natural gas
B. Coal
C. Petroleum
D. Wind
6) Which of the following forces act of the blades of wind turbine rotor
A. Lift force
B. Drag force
C. Both (A) and (B)
D. None of the above
14) What is a disadvantage of vertical wind turbines?
(a)They generate electricity at lower wind speeds.
(b) They generate less electricity compared to horizontal turbines.
(c) They take up less space than horizontal turbines.
(d) They can function when mounted only 20 feet off the ground.
15) Which of the following is not necessary for a wind turbine to generate electricity?
(a) Photovoltaic motor
(b) Blades
(c) Wind
(d) Coiled Wire
16) The relation between the wind speed and the output power in a wind turbine is
P =0.5 *density*area*velocity^3
Q10. One of the following statements doesn’t describe wind energy:
a. Wind energy increases with height to the 1/7 power 2X the height translates into 10.4% more
electricity.
b. Wind energy increases with the cube of the wind speed 10% increase in wind speed translates
into 30% more electricity.
c. Wind energy decreases when swept area of the blades increases
d. Wind energy increases proportionally with air density
Boiler
Which of the following enters the super heater of a boiler ?
A) Cold water
B) Hot water
C) Super-heated steam
D) Wet steam
1. One of the following is to protect the boiler shell from overpressure and explosion.
A) Safety valve.
B) Gate valve
C) Butterfly valve
D) Strainer valve
57)The thermal efficiency of diesel engines is about
1.
15%
2.
30%
3.
50%
4.
70%
17) Is a device in which the waste heat of the flue gases is utilized for heating the feed water:
a) Economizer
b) Boiler
c) Injector
d) Steam drum
e) None of the above
Q7) Water in the economizer of the boiler have a PH number of
abcde-
3-4
4-5
6-7
8-9
9- Which of these sentences is/are true:
a-If Biot number is less than 1, that means all parts of the body are at the same temperature at
any one instant of time.
b-Hollow blade has higher Biot number than solid blade.
c-Low Biot number indicates a more uniform temperature distribution within the body than a
high Biot number.
e- a& c.
10- If the temperature increases inside the boiler too much, you return this problem to (choose
more accurate answer):
a-Calcification of water inside the boiler is very high.
b-Defect in boiler design.
c-The water inside the boiler isn’t same to required amount.
d-All of the above.
5) The mechanical device that extracts thermal energy from pressurized steam and converts it
into mechanical work is :
a) Turbine
c) boiler
b) Pump
d) condenser
) which of the following is not a boiler mounting?
A)
B)
C)
D)
Pressure gauge.
Fusible plug.
Blow off cock.
Feed pump.
2) what is the maximum operating pressure for a fire tube boiler?
A)
B)
C)
D)
8Up to 16 bars.
Over 100 bars.
Up to 50 bars.
Under 10 bars.
3) what is the main difference between the fire tube and water tube?
A)
B)
C)
D)
The size of the tubes.
The number of tubes that are used.
The placement of the hot gases and water.
The path taken by the tube.
4) which curvature direction is desired for a forced draft centrifugal fan?
A)
B)
C)
D)
Backward.
Forward.
Straight.
Both A + B.
5) what is the function of a blower which is located inside a boiler?
A)
B)
C)
D)
Clear dirt from inside boiler.
Lubricate moving parts inside the boiler.
Atomize fuel being added inside boiler.
Supply solid fuel into the boiler.
**example of bent tube boilers:
a)four drum strilling boiler b)the fire box c) the scotch marine d)the radiant boiler
9)the boiler that does't contain a steam drum :
a)onec-through boiler b)radiant boiler c)straight boiler d)radiant boiler
Cooling tower
6- When the water supplies is unreliable, the operating mode of cooling tower should be:
abcd-
Open mode.
Terminal-difference mode.
Closed mode.
Helper mode.
7- If the difference between the temperature of the cold water leaving the tower and the wet-bulb
temperature of the outside air is low, & you need to offer less resistance to air flow (higher air
velocity), we choose:
abcde-
Mechanical draft counter flow.
Mechanical draft cross flow.
Natural draft cross flow.
Natural draft counter flow.
a or b.
8- The heart of cooling tower is:
abcd-
Water distribution system.
Packing.
The Basin.
Drift eliminators.
Solar
What is the most common material used in making solar cells?
(a) Silver
(b) Iron
(c) Aluminium
(d) Silicon
Harmful radiation emitted from the sun is
(a) Visible radiation
(b) Infrared radiation
(c) Ultraviolet radiation
(d) None of the above
7) Solar energy travels through space by the process of
A. Conduction
B. Convection
C. Radiation
D. Transportation
8) In what form can solar energy be used
A. Thermal energy
B. Electrical energy
C. Mechanical energy
D. All of above
in solar plants, the energy required for vaporization originates in collected and concentrated solar
radiation
1-True
2-False
in solar system , water or special thermo oil runs through the absorber tube , the concentrated
sunlight heats it up to nearly :
a) 80 ˚c b) 1000˚c
c) 2000˚c
d)400˚c
1-solar thermal electricity is much more reasonable than photovoltaic electricity (T)
2) which type of solar system does need turbine to generate electricity turbine?
A)
B)
C)
D)
Photovoltaic.
Parabolic trough collector.
Solar concentrator.
None of the above.
3) solar thermal power plants can only use …………. for power generation:
a-) Direct irradiance
b-) Diffuse irradiance
c-) Photovoltaic
d-) Ultraviolet irradiance
Geothermal
1) Geothermal energy is:
(a) heating system that uses hot-water pipes embedded in flooring within a home.
(b) heat derived from the crushing of large quantities of rock.
(c) the use of naturally heated water or steam to heat buildings or drive turbo generators.
(d) heat derived from molten lava.
What principle pulls water into the penstock?
1.gravity
2.force of the volume of water
3.turbine
4.pressure
The component(s) of alternative vapor power plant configurations is/are?
a) Fossil-fueled vapor power plants.
b) Pressurized-water reactor nuclear vapor power plants.
c) Concentrating solar thermal vapor power plants.
d) Geothermal vapor power plants.
e) All of the above
In external combustion engines such as steam power plants, heat is supplied to the working fluid
from :
a) External source such as geothermal well
b) Burning the fuel within the system boundaries
c) Outside climate
d) None of the above
18) The thermal efficiency of geothermal electric stations is
(a) low, around 7–10%
(b) Medium around 25-40%
(c) High around 60-80%
(d) Very High can get up to 90 %
9) Geothermal energy reservoirs are
A. Liquid dominated reservoirs
B. Steam dominated reservoirs
C. Hot rocks with no water
D. All of the above
10) Which of the following choices best describes geothermal energy?
A. Heat energy from volcanic eruptions
B. Heat energy from hot springs
C. Heat energy from inside the earth
D. Heat energy from rocks on earth's surface
Others
Flue gas desulfurization can be accomplished by :
16) Wet scrubber
17) Dry scrubber
18) Single alkali scrubber
19) All of them
20) Non of them
Thermal efficiency tends to increase as the average temperature when:
a)
b)
c)
d)
e)
Energy is added by heat transfer increases.
The average temperature at which energy is rejected by heat transfer decreases.
Energy is added by heat transfer decrease.
a+b
None of the above.
The device or system used to produce a net power output are often called
a) condenser
b) Engine
c) Compressor
d) Generator
e) Pump
1) The largest sector that consumes electricity in Jordan is :
1- Industrial
2- Commercial
3- Domestic
4- Water pumping
5- Street lighting
2)AL- Samra Electric Power capacity is:
1- 518 Mw
2- 470 Mw
3- 742 Mw
4- 1000 Mw
The basic building block of vapor power systems is the
1- Rankine cycle
2- Brayton cycle
3- Otto cycle
4- non-of the above
A key difference between the following plants :
( Fossil-fueled vapor power plants) ,(Pressurized-water reactor nuclear vapor power plants),
(concentrating solar thermal vapor power plants),( Geothermal vapor power plants )is:
1- working fluid is alternately vaporized and condensed
2- is the origin of the energy required to vaporize the working fluid
3- Non-of the above
) the second law of thermodynamics requires the thermal efficiency to be 100%:
1-true
2-false
the first law of thermodynamics requires the net work developed by a system undergoing a
power cycle to equal the net energy added by heat transfer:
1-true
2-false
One of the following incorrect about Cogeneration Systems:
1-are integrated systems that simultaneously yield two valuable products, electricity and steam
(or hot water) from a single fuel input.
2- typically provide cost savings relative to producing power and steam (or hot water) in separate
systems.
3- Are widely deployed in industrial plants, refineries, food processing plants
4-just Can be based on vapor power plants
the main reason(s) for increase the need of renewable energy :
1- increasing of the global energy demand
2-climate change
3- Low „social“ and „external“ costs
4-all of the above
The Brayton cycle is known as the constant
1) pressure cycle.
2) temperature cycle.
3) mass cycle.
What is fission?
1. The joining together of atoms.
2. The process of creating heat.
3. The splitting of atoms into smaller pieces.
4. The scientific creation of bubbles rising to the surface.
The term "BWR" stands for:
1. Bureau of Workers Rights
2. Boiling Water Reactor
3. Bilateral Water Reactor
4. Bureau of Waste Research
50)In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the
1.
beginning of suction stroke
2.
end of suction stroke
3.
beginning of exhaust stroke
4.
end of exhaust stroke
1) what is the function of pressure equalizer
1-increase the pressure of cooling water
2-decrease the pressure of cooling water
3-maintain the pressure of cooling water constant
4 - Enables water to carry more heat from the reactor.
5-(3+4)
4) The actual cost of producing power will vary from power to another depending on size of
power plant
1-true
2-false
2) Which of the following is non-renewable source:
1-hydropower
2-wind
3-natural gas
4-solar
5-no of the above
6)the once-through boiler is also called :
a)the forced-circulation b)benson c)universal-pressure boiler d)all of the above
5) Which of the following doesn’t need boiler
1- CSP
2- Wind power plants
3- Hydro-power plants
4- All of the above
6) Which of the following doesn’t need turbine and boiler to generate electricity:
1-CSP
2-biogass
3-PV-modules
4-Nuclear
8)high power consumption and high maintenance cost , this is for :
a) forced draft fan
b)induced-draft fan
c)pressure fan
d) non of the above
) A fossil burner can't drive the water-steam cycle during periods of bad weather or at night (F)
2) which type of power plant normally has the highest power rating?
A)
B)
C)
D)
fossil fuel plant
Nuclear power plant.
Solar energy plant.
Geothermal power plant.
3) which renewable energy source currently has the highest contribution in terms of generated electricity
so far?
A)
B)
C)
D)
solar
geothermal
wind
hydro
4) The average heating value for olive cake about
a-) 12 MJ/Kg
b-) 19 MJ/Kg
c-) 42 MJ/Kg
d-) 33 MJ/Kg
5) The device used to produce a net power output are often
called :
a-) Power cycle
c-) Condenser
b-) Boiler
d-) Engine
6) The main conditions for the occurrence of water hammer in both steam and condensate
lines are:
a-) Presence of condensate
b-) High live or flash steam velocity
c-) a+b
d-) None of the above
7) the oldest source of renewable energy was used is:
a. Solar energy
b.wind energy
c. tidal energy
d. biomass energy
Heat generators are mainly built of two distinct elements:
abcd-
Combustion chamber, fuel burner.
Metallic body or generator itself.
a&b
Boiler
)the temperature of the air that leaves to the stack is almost:
a)300F b)400F c)500F
d)600F
2- Mention two for environmental impacts ?
1- local scarcity of fuelwood
2- severe damage to the ecosystem
3- 1+2
4- 2 only
photovoltaic system have advantages for :


High-power demand
Low-power demand
-
5- Most consumer of electricity is:
a- Homes , farms and remote application
b- Central station wind farms , distribution power and community wind
c- Village power , hybrid system and distribution system
d- a&c
The total kinetic energy of air movement in the atmosphere is estimated to be about_________
of the solar energy reaching the earth:
abcd-
0.1%
0.2%
0.3%
0.4%
Which of the following has the largest portion on electricity production:
abcd-
Natural Gas.
Coal.
Nuclear.
Solar.
heat engine is devices that convert heat to :



Work
Thermal energy
Electrical energy
2)the cycle that has the highest efficincy is:
a)rankin cycle b)cogeneration cycle c)regenration cycle d)combined cycle
4) latent heat know as :
a)The heat required to raise a unit mass of dry steam at saturation
temperature to any greater specified temperature.
b)The heat required to convert a unit mass of water
at saturated temperature to dry steam at the same temperature
c)(heat of the liquid) The heat required to raise the temperature of a
unit mass of water from freezing point to saturated temperature (boiling point
d)a+b
The heat required to raise the temperature for a unit mass of water from freezing point to
saturated temperature (boiling point) is called:
A. Sensible
B. Latent
C. Super Heat
D. Total Heat
How to prevent water hammer:
A. Steam valves should be opened slowly to gradually increase the condensate flow
B. Install drain pocket with appropriate steam taps along the line
C. Pipe design in such a way to eliminate back
D. All of the above
The deviation of pressure from the set point pressure that takes place when a pressure regulator
moves from the minimum to the maximum is called:
C. Droop
D. None of the above
B. Dependency
A. Accumulation
One of the following is not well-known heating fluids:
(a)
(b)
(c)
(d)
hot water
superheated water
thermal oils
none of the above
The most used energy source for electricity production in the world:
abcd-
Natural Gas
Oil
Coal
Nuclear energy
4) If a engine has spark plug, it can be safely concluded that the engine is
(A) not a diesel engine
(B) a two stroke petrol engine
(C) a four stroke petrol engine
(D) an air cooled petrol engine
5) Which power plant cannot have single units of 100 MW capacity?
(A) Steam power plant
(B) Nuclear power plant
(C) Hydroelectric power plant
(D) Diesel engine power plant
8. The efficiency of a thermal power plant improves with
1. increased quantity of coal burnt
2. larger quantity of water used
3. lower load in the plant
4. use of high steam pressures.
Q1 ) Structure that holds back the water which is in the
reservoir is called :
Answer : Dam
Q2 ) As the turbine blades turn, the shaft rotation
inside the generator will produce -------------which is converted into electricity .
Answer : magnetic field
Q3 ) Energy created in a nuclear reaction
is called nuclear energy, or -------------Answer : atomic energy
Q4 ) Uranium nuclei can be easily split by shooting -------------at them.
Answer : neutrons
Q7 ) The total kinetic energy of air movement in the
atmosphere is estimated to be about
------Wh or ------ % of the solar energy reaching the
earth .
Answer : 3x10 Wh or about 0.2%
Q8 ) The maximum technically usable potential is
estimated to be theoretically ------ KWh per
year or about ------ % of the current world total
energy consumption .
Answer : 30 trillion KWh per year or about 35%
Q10 ) Unlike petroleum, coal is not formed from --------------,
but from the remains of land plants
Answer : marine organisms
2. The first commercial parabolic trough power plant was built in
A) Cairo
B) New York
C) California
D) London
True or False Questions
1. Steam can be define as a versatile and easy to control form of water that is made from a
plentiful commodity. (T)
2. Small amount of calorie (Kcal) is required to raise of 1 ºC, 1 Kg of water (from 14,5ºC to
15,5ºC). (answer: False, large amount not small)
3. Each body needs the same amount of heat to raise the same weight quantity by the same
temperature. (answer: False, needs different amount)
4. Pressure and Temperature are inversely proportional for saturated steam, whereas,
Pressure and Specific Volume of steam are directly proportional. (False, answer: the
opposite relations)
5. It is possible to convert Biomass to Other Forms of Energy. (T)
6.
.
Parabolic trough and solar power tower plants are two famous types of solar thermal .
power plants. (T)
7. The first commercial parabolic trough power plant was built in the SuadiDesert in the
year 1984. (F)
8. About one percent of the surface of the Sahara desert would be sufficient to supply the
entire worldwide electricity demand from solar thermal power plants. (T)
9. Like petroleum, coal is formed from marine organisms. (False, answer: coal from the
remains of land plants)
Definitions and Fill in the blank
* Define with clear words the stage of coking coal ?
Solution:
Coking is achieved by heating the coal in the absence of oxygen, which drives off volatile
hydrocarbons such as propane, benzene and other aromatic hydrocarbons, and some sulfur gases
and a considerable amount of the contained water of the bituminous coal Coking coal is used in
the manufacture of steel, where carbon must be as volatile-free and ash-free as possible.

In real process entropy and exergy are positive

Minimum work in air compressor : in isothermal process

Zero exergy :dead state

If the pressure of the condenser in rankine cycle increases, the efficiency decrease

In ideal reheat : the amount of heat rejected will decrease and amount of moisture content
will decrease

Regeneration causes less heat input

Raising condenser pressure causes the moisture content to increase
 Large-hydro: More than 100 MW feeding into a large electricity grid
 Medium-hydro: 15 -100 MW usually feeding a grid
 Small-hydro :1 -15 MW -usually feeding into a grid
 Mini-hydro: Above 100 kW, but below 1 MW ,Either stand alone schemes or
more often feeding into the grid
 Micro-hydro :From 5kW up to 100 kW ,Usually provided power for a small
community or rural industry in remote areas away from the grid
 Pico-hydro :From a few hundred watts up to 5kW Remote areas away from the
grid