PROBLEM SET 2
Chemistry
1. How many hydrogen atoms are in 2.50 g of pharmacolite, CaHAsO4•2H2O (M = 216.0)?
A. 3.48 x 10^22
C. 3.48 x 10^22
B. 3.48 x 10^22
D. 3.48 x 10^22
Answer: C
Solution:
Reference: https://www.acs.org/
2. What volume of 18.0 M sulfuric acid must be diluted to 250.0 mL to afford a 0.55 M solution
of sulfuric acid?.
A. 7.8ml
B. 7.9ml
C. 7.2ml
D. 7.6ml
Answer: D
Solution:
Reference: https://www.acs.org/
3. What is the concentration of H2O2 in a solution that is 30.0% by mass hydrogen peroxide and
has a density of 1.11 g cm-3?
A. 9.79M
B. 7.9M
Answer: A
Solution:
C. 6.59M
D. 9.7M
Reference: https://www.acs.org/
4. A 5.00 g mixture of potassium sulfide and potassium chloride contains 2.80 g potassium.
What percentage by mass of the mixture is potassium sulfide?
A. 18.2%
B. 19.2%
C. 12.2%
D. 14.2%
Answer: B
Solution:
Reference: https://www.acs.org/
5. A student is using a buret for a titration. What initial buret reading should be
recorded?
A. 8.2
B. 7.2
C. 6.6
D. 1.1
Answer: C
Solution:
A buret is a precise volumetric piece of lab equipment, which allows for the estimation for one
more digit. Thus, we can allow for one more digit beyond the marked 6.6. Thus, 6.63 is the
correct answer, or C . When reporting numbers, the last digit is uncertain and can be estimated.
Note: that the buret reads top to bottom.
Reference: https://www.acs.org/
6. The rate constant of a chemical reaction increases 26% when the temperature is raised from
50 ºC to 55 ºC. What is the activation energy of this reaction?
A. 50.2 kJ / mol
B. 70.4 kJ / mol
C. 40.7 kJ / mol
D. 41.1 kJ / mol
Answer: C
Solution:
Reference: https://www.acs.org/
7. At equilibrium, a solution contains 0.50 mol each of Cd^2+(aq), SCN–(aq), and Cd(SCN)4^2–
(aq). What is the solution’s volume?
A. 4.8L
B. 3.8L
C. 2.8L
D. 9.8L
Answer: C
Solution:
Reference: https://www.acs.org/
8. Who is considered the father of modern chemistry?
A. Antoine-Laurent Lavoisier
C. Antony-Laurente Lavoisier
B. Anthony-Laurent Levosier
D. Antoinette-Laurente Lavisier
Answer: A
Explanation:
Considered the father of modern chemistry, Lavoisier promoted the Chemical Revolution,
naming oxygen and helping systematize chemical nomenclature. Antoine-Laurent Lavoisier, a
meticulous experimenter, revolutionized chemistry.
Reference: Wikipedia.org
9. Who is the Father of Science?
A. Antoine-Laurent Lavoisier
B. Blaise Pascal
C. Isaac Newton
D. Galileo Galilei
Answer: D
Explanation:
Albert Einstein called Galileo the “father of modern science.” Galileo Galilei was born on
February 15, 1564, in Pisa, Italy but lived in Florence, Italy for most of his childhood. His father
was Vincenzo Galilei, an accomplished Florentine mathematician, and musician.
Reference: Wikipedia.org
10. the branch of science that deals with the identification of the substances of which matter is
composed; the investigation of their properties and the ways in which they interact,
combine, and change; and the use of these processes to form new substances
A. Thermodynamics
C. Physics
B. Chemistry
D. Material Science
Answer: B
Solution:
Chemistry, the branch of science that deals with the identification of the substances of which
matter is composed
Reference: Wikipedia.org
Thermodynamics
11. If an object has a weight of 10 lbf on the moon, what would the same object
weigh on Jupiter?
A. 138lbf
B. 139lbf
Answer: B
C. 140lbf
D. 150lbf
Solution:
Reference: https://www.navsea.navy.mil/
12. An object that weighs 50 lbf on earth is moved to Saturn where its new weight is
105 lbf. What is the acceleration due to gravity on Saturn?
A. 138lbf
B. 139lbf
C. 140lbf
D. 150lbf
Answer:
Solution:
Reference https://www.navsea.navy.mil/
13. Given: P1 = 4 psig, PATM = 15 psia, and P2 = 10 psig Find PA and PB
A. P1 = 11psia, P2 = 21psia
B. P1 = 22psia, P2 = 31psia
Answer: A
Solution:
Reference https://www.navsea.navy.mil/
C. P1 = 15psia, P2 = 22psia
D. P1 = 10psia, P2 = 11psia
14. Given: PATM = 15 psia, P2 =6 psiv, and P3 = 7 psig Find PA and PB.
A. P3 = 22psia, P2 = 22psia
B. P3 = 28psia, P2 = 11psia
C. P3 = 50psia, P2 = 32psia
D. P3 = 22psia, P2 = 28psia
Answer: D
Solution:
Reference: https://www.navsea.navy.mil/
15. Given the conversion factor 1 inch H2O = 0.0361 psid and that the manometer below
employs water, find the difference in pressure between compartments A and B.
A. 3.6psid
B. 6.6psid
C. 2.6psid
D. 5.6psid
Answer: C
Solution:
Reference: https://www.navsea.navy.mil/
16. Given the following information about a system, calculate specific enthalpy (in Btu/lbm).
A. 630.6 btu/lbm
B. 629.6 btu/lbm
C. 729.6 btu/lbm
D. 650 btu/lbm
Answer: B
Solution:
Reference: https://www.navsea.navy.mil/
17. Define Energy.
A. Energy: the capacity of a system to perform work or produce cold .
B. Energy: the capacity of a system to produce lightning.
C. Energy: the capacity of a system to perform work or produce heat.
D. Energy: the capacity of a system to not perform work or produce heat.
Answer: C
Explanation:
Energy: the capacity of a system to perform work or produce heat.
Reference: https://www.navsea.navy.mil/
18. Define pressure
A. Pressure: a measure of force exerted per unit area on the boundaries of a system.
B. Pressure: a measure of Energy exerted per unit area on the boundaries of a system.
C. Pressure: a measure of Power exerted per unit area on the boundaries of a system.
D. Pressure: a measure of Weight exerted per unit area on the boundaries of a system.
Answer: A
Solution:
Pressure: a measure of force exerted per unit area on the boundaries of a system.
Reference: https://www.navsea.navy.mil/
19. An inventor claims to have invented a device which absorbs 2500 Btu of heat and produces
2000 Btu of work. If the heat sink for the device is ice water (32 F), what would be the
minimum source temperature?
A. 3000 F
C. 4000 F
B. 2000 F
D. 6000 F
Answer: B
Solution:
Reference:https://www.navsea.navy.mil/
20. Who is Father of Thermodynamics?
A. Niqolas Léonard Saudi Carnot
B. Nicolas Léonard Sadic Parnot
C. Nicolai Léonard Saudi Carnot
D .Nicolas Léonard Sadi Carnot
Answer: D
Solution:
Nicolas Léonard Sadi Carnot is often described as the “Father of Thermodynamics.”
Reference: Wikipedia.org
Physics
21. American football is played on a 100-yd-long field, excluding the end zones. How long is the
field in meters? (Assume that 1 meter equals 3.281 feet.)
A. 91.4m
C. 89.6m
B. 98m
D. 60m
Answer: A
Solution:
Since 3 feet = 1 yard and 3.281 feet = 1 meter, multiply 100 yards by these conversion factors to
cancel the units of yards, leaving the units of meters:
Reference: https://www.andrews.edu/
22. Suppose that a person has an average heart rate of 72.0 beats/min. How many beats does
he or she have in 2.0 y?
A. 7.57x10^-7 beats
B. 7.6x10^7 beats
Answer: B
C. 7.57x10^7 beats
D. 9.6x10^7 beats
Solution:
Reference: https://www.andrews.edu/
23. Refer to problem 22 How many beats does he or she have in 2.00y?
A. 7.57x10^-7 beats
C. 7.57x10^7 beats
B. 7.6x10^7 beats
D. 9.6x10^7 beats
Answer: C
Solution:
Reference: https://www.andrews.edu/
24. Refer to problem 22 How many beats does he or she have in 2.000y?
A. 7.57x10^-7 beats
C. 7.57x10^7 beats
B. 7.6x10^7 beats
D. 9.6x10^7 beats
Answer: C
Solution:
Reference: https://www.andrews.edu/
25. A football quarterback runs 15.0 m straight down the playing field in 2.50 s. He is then hit and
pushed 3.00 m straight backward in 1.75 s. He breaks the tackle and runs straight forward
another 21.0 m in 5.20 s. Calculate his average velocity. Calculate for each of the three
intervals.
A. 6m/s (forward), -1.71m/s (backward), 4.04m/s (forward)
B. 8m/s (forward), -1.72m/s (backward), 4.07m/s (forward)
C. 7m/s (forward), -1.74m/s (backward), 4.08m/s (forward)
D. 9m/s (forward), -1.77m/s (backward), 4.01m/s (forward)
Answer: A
Solution:
Reference: https://www.andrews.edu/
26. Refer to Problem 25 Calculate his Average Velocity for the entire motion.
A. 4.49m/s
C. 3.49m/s
B. 3.32m/s
D. 5.49m/s
Answer: C
Solution:
Reference: https://www.andrews.edu/
27. Professional Application Blood is accelerated from rest to 30.0 cm/s in a distance of 1.80 cm
by the left ventricle of the heart. See the sketch of the situation. List the knowns in this
problem.
A. 0.200m
B. 0.0180m
C. 1.1180m
D. 0.3180m
Answer: B
Solution:
Reference: https://www.andrews.edu/
28. What is the main study of Physics?
A. Physics is the natural science that studies matter, its fundamental constituents, its motion and
behavior through space and time, and the related entities of energy and force.
B. Physics is the unnatural science that studies atoms, its fundamental constituents, its motion
and behavior through space and time, and the related entities of energy and force.
C. Physics is the natural science that studies magnetism, its fundamental constituents, its motion
and behavior through space and time, and the related entities of energy and force.
D. Physics is the natural science that studies matter, its fundamental constituents, its motion and
speed through space and time, and the related entities of energy and force.
Answer: D
Explanation:
Physics is the natural science that studies matter, its fundamental constituents, its motion and
behavior through space and time, and the related entities of energy and force.
Reference: Wikipedia.org
29. What math do you need for physics?
A. Algebra Basics. Trigonometry with right angles and the Pythagorean theorem. Basic
Probability.
B. Algebra Basics. Integral Calculus and Basic Probability.
C. both a and b
D. none
Answer: A
Solution:
Algebra Basics. Trigonometry with right angles and the Pythagorean theorem. Basic Probability.
Reference: Wikipedia.org
30. Who is the Father of Physics?
A. Isaac Newton
B. Blaise Pascal
C. Galileo Galilei
D. Rene descartes
Answer: A
Solution:
He is considered the Father of Physics. He is one of the greatest mathematicians and scientists of
all time, Newton is famous for his law of gravitation and three laws of motion. Various important
concepts and formulas in Physics are based on his principles
Reference: Wikipedia.org
Engineering Mechanics
31. Find the magnitude of the force P, required to keep the 100 kg
mass in the position by strings as shown in the Figure
A. 1134.9N
B. 1242.36N
C. 1132.76N
D. 566.38N
Answer: C
Solution:
Reference: mrcet.com
32. Block A weighing 1000N rests over block B which weighs 2000N as shown in figure. Block A is
tied to wall with a horizontal string. If the coefficient of friction between blocks A and B is
0.25 and between B and floor is 1/3, what should be the value of P to move the block (B), if P
is horizontal. FBD for block A only
A. 600N
B. 250N
C. 1000N
D. 566N
Answer: B
Solution:
Reference: mrcet.com
33. Refer to problem 32 if P is horizontal in FBD Block B only.
A. 600N
C. 700N
B. 250N
D. 1250N
Answer: D
Solution:
Reference: mrcet.com
34. Refer to problem 32 if P acts at 30° upwards to horizontal.
A. 1210.43N
C. 1120.43N
B. 2500.89N
D. 1250.32N
Answer: A
Solution:
Reference: mrcet.com
35. Determine the forces in FBD in Joint A in the truss shown in
figure and indicate the magnitude and nature of the forces on
the diagram of the truss. All inclined members are at 60° to
horizontal and length of each.
A. Fab = 83.71N, Fae = -41.86N
B. Fab = -83.71KN, Fae = -41.86KN
C. Fab = 83.71KN, Fae = -41.86KN
D. Fab = 83.71N, Fae = 41.86N
Answer: C
Solution:
Reference: mrcet.com
36. Refer to problem 35 FBD in Joint D
A. Fcd = -89.5N, Fed = -44.75N
B. Fcd = 89.5N, Fed = 44.75N
Answer: D
Solution:
C. Fcd = -89.5KN, Fed = 44.75KN
D. Fcd = 89.5KN, Fed = -44.75KN
Reference: mrcet.com
37. Refer to problem 35 FBD in joint B
A. Fbe = 37.532KN, Fbc = -60.63KN
B. Fbe = -37.532KN, Fbc = 60.63KN
Answer: B
Solution:
Reference: mrcet.com
38. Refer to problem 35 FBD in joint C.
A. Fec = -31.76KN, Fcd = 77.95KN
B. Fec = -31.76N, Fcd = -77.95N
C. Fec = 31.76KN, Fcd = 77.95KN
D. Fec = -31.76N, Fcd = 77.95N
Answer: A
Solution:
C. Fbe = -37.532N, Fbc = 60.63N
D. Fbe = -37.532N, Fbc = -60.63N
Reference: mrcet.com
39. The application of mechanics to solve problems involving common engineering elements.
A. Engineering Mechanics
C. Physics
B. Engineering Economy
D. Thermodynamics
Answer: A
Explanation:
Engineering Mechanics is the application of mechanics to solve problems involving common
engineering elements.
Reference: Wikipedia.org
40. What are the 2 branches of Engineering Mechanics?
A. Physics and chemistry
C. both a and d
B. None of these
D. Statics and Dynamics
Answer: D
Solution:
Reference: Wikipedia.org
41. What are the 3 types of Mechanics?
A. None of these
B. both c and d
C. Physics, Chemistry, Vectors
D. Statics, Kinematics, Kinetics
Answer: D
Solution:
Mechanics may be divided into three branches: statics, which deals with forces acting on and in a
body at rest; kinematics, which describes the possible motions of a body or system of bodies;
and kinetics, which attempts to explain or predict the motion that will occur in a given situation.
Reference: Wikipedia.org
42. Determine the centroid of bar bent in to a shape as shown in
figure. For AB
A. 20mm
B. 50mm
C. 25mm
D. 55mm
Answer: B
Solution:
Reference: mrcet.com
43. Determine the centroid of bar bent in to a shape as shown in
figure. For BC
A. L1=-70.71mm, x1=18.68, y1=-17.68mm
B. L1=80.71mm, x1=19.68, y1=-7.68mm
Answer: C
Solution:
Reference: mrcet.com
C. L1=70.71mm, x1=17.68, y1=17.68mm
D. L1=70.71mm, x1=7.68, y1=27.68mm
44. Determine the centroid of bar bent in to a shape as shown in
figure. For CD
A. y3=60mm and x3= 77mm
B. y3=150mm and x3= 75mm
C. y3=40mm and x3= 70mm
D. y3=90mm and x3= 55mm
Answer: B
Solution:
Reference: mrcet.com
45. Determine the centroid of bar bent in to a shape as shown in
figure. For DEF
A. L4=157.08mm and x4= 181.08mm, y4 = 50mm
B. L4=167.08mm and x4= 141.08mm, y4 = 150mm
C. L4=147.08mm and x4= 121.08mm, y4 = 10mm
D. L4=127.08mm and x4= 101.08mm, y4 = 200mm
Answer: A
Solution:
Reference: mrcet.com
Strength of Materials
46. The area of a rectangle is A=b⋅h . Given a base b=83in. and a height h=45 ft. , calculate the
area in square feet.
A. 311.25ft^2
B. 411.25ft^2
C. 321.25ft^2
D. 211.25ft^2
Answer: A
Solution:
Reference: core.ac.uk
47. Stress is force divided by area. If the stress is 1 N/mm2 , what is the stress in MPa?
A. 1MPa
C. 3MPa
B. 2.5MPa
D. 7MPa
Answer: D
Solution:
Reference: core.ac.uk
48. Deflection due to thermal expansion is δ=α⋅L⋅ΔT . The upper-case Greek letter delta means
“change”, so ΔT means “change in temperature.” Given a deflection δ=0.06in. , a length
L=8ft. , and a thermal expansion coefficient α=5×10−6 in./in.°F , calculate the change in
temperature in degrees Fahrenheit.
A. 135 °F
B. 115 °F
C. 125 °F
D. 175 °F
Answer: C
Solution:
Reference: core.ac.uk
49. Stress is force divided by area: σ= P/A . Given a force P = 7000 lb. acting on an area A = 3
ft.^2, calculate the stress in units
A. 16.2psi
C. 21.6psi
B. 0
D. none of these
Answer: A
Solution:
Reference: core.ac.uk
50. A tensile bar stretches an amount δ= P⋅L/ A⋅E where P is the applied load, L is the length of
the bar, A is the cross-sectional area, and E is Young’s Modulus. The bar has a circular cross
section. Given a load of 30 kN, a length of 80 cm, a diameter of 6 mm, and a Young’s Modulus
of 207 GPa, calculate the deflection in mm.
A. 4.1mm
B. 13.2mm
Answer: A
C. 10.1mm
D. 0.14mm
Solution:
Reference: core.ac.uk
51. The weight of a solid object is the specific weight of the material times the volume of the
object: W =γV . The volume of a rod, pipe, or bar is the cross-sectional area times the length:
V =A L . Calculate the weight of a 2 inch diameter, 3 foot long bar of steel. From Appendix B,
the specific weight of steel is 0.284 lb./in.^3
A. 30.2lb
C. 32.1lb
B. 42.1lb
D. 32.8lb
Answer: C
Solution :
Reference: core.ac.uk
52. Calculate the weight of a 5 cm diameter, 2 meter long bar of steel. From Appendix B, the
density of steel is 7.85 g/cm^3
A. 300lb
C. 320n
B. 302lb
D. 302n
Answer: D
Solution:
Reference: core.ac.uk
53. A 50 mm thick wood board is planed to a thickness of 38 mm. Calculate how much material
was removed, in percent. Calculate the percent change by subtracting the initial value from
the final value, then dividing by the initial value. This method works whether you are
calculating thickness change, weight change, price change, or any other kind of change. The
word “percent” means “per hundred”, so a result of 0.36 is 36%.
A. 54%
B. 24%
C. -34%
D. -24%
Answer: D
Solution:
Reference: core.ac.uk
54. Two pieces of carbon fiber composite are glued together as a lap joint. Shear stress is τ= P/A.
If the glue has a shear strength of 1.2 ksi and the joint is loaded with a shear load P=1700 lb. ,
how much glued surface area is required for a good bond?
a 1.42 in^2
b -1.42 in^2
c -1.52 in^2
d 1.52 in^2
Answer: A
Solution:
Reference: core.ac.uk
55. A 6 inch long copper wire is stretched to a total length of 6.05 inches. What is the strain?
A. 0.0083
C. -0.0082
B. -0.0004
D. 10.0011
Answer: A
Solution:
Reference: core.ac.uk
56. What tensile stress is required to produce a strain of 8×10^-5 in aluminum? Report the
answer in MPa.
A. 12.5Mpa
C. 13.5mpa
B. 5.6mpa
D. 6.6mpa
Answer: B
Solution:
Reference: core.ac.uk
57. A 6 foot long aluminum rod has a cross-sectional area of 0.08 in.^2 . How much does the rod
stretch under an axial tensile load of 400 lb.? Report the answer in inches
A. 0.4in
C. 0.036 in
B. 13.4in
D. 0.0001in
Answer: C
Solution:
Reference: core.ac.uk
58. A 3 mm thick aluminum sheet is cut with a 4 cm diameter round punch. If the punch exerts a
force of 6 kN, what is the shear stress in the sheet? Report the answer in MPa.
A. 16.5mpa
B. 15.9mpa
C. 16.2 mpa
D. 25.5mpa
Answer: B
Solution:
Reference: core.ac.uk
59. A pipe with a 15 in. outside diameter and a 14 in. inside diameter carries pressurized water at
110 psi. What is the hoop stress?
A. 1,650psi
B. 2000psi
C. 1,540psi
D. 2500psi
Answer: C
Solution:
Reference: core.ac.uk
60. It is an ability to withstand an applied load without failure or plastic deformation.
A. Thermodynamics
C. Chemistry and Physics
B. Engineering Economy
D. Strength of Materials
Answer: D
Explanation:
Strength of Materials, It is an ability to withstand an applied load without failure or plastic
deformation.
Reference: Wikipedia.org
61. What are the types of Strength of Materials?
A. Absolute Strength, Relative Strength, Power or Explosive Strength, Strength Endurance.
B. Relative Strength, Power or Explosive Strength, Strength Endurance.
C. Absolute Strength, Power or Explosive Strength, Strength Endurance.
D. Absolute Strength, Relative Strength, Power or Explosive Strength,
.
Answer:
Explanation:
The four types of Strength of Materials are
Absolute Strength, Relative Strength, Power or Explosive Strength, Strength Endurance.
Reference: Wikipedia.org
Engineering Economy
62. You plan to make a lump-sum deposit of $5000 now into an investment account that pays 6%
per year, and you plan to withdraw an equal end-of-year amount of $1000 for 5 years,
starting next year. At the end of the sixth year, you plan to close your account by
withdrawing the remaining money. Defi ne the engineering economy symbols involved.
A. 25 year for the A series and 14 for the F value
B. 15 year for the A series and 36 for the F value
C. 10 year for the A series and 12 for the F value
D. 5 year for the A series and 6 for the F value
Answer: D
Explanation:
Reference: hzu.edu.in
63. Last year Jane’s grandmother offered to put enough money into a savings account to
generate $5000 in interest this year to help pay Jane’s expenses at college. the symbols. And
calculate the amount that had to be deposited exactly 1 year ago to earn $5000 in interest
now, if the rate of return is 6% per year.
A. $73,333.33
B. 63,333.33
C. $83,333.33
D. none of these
Answer: C
Solution:
Reference: hzu.edu.in
64. If a one-time amount pf $500 is invested at an annual interest rate of 8% (compounded
annually), find its future worth at the end pf 30 years.
A. $6031.35
C. $8031.35
B. $5031.35
D. $5041.35
Answer: B
Solution:
Reference: engineering.purdue.edu
65. If you need to have $800 in savings at the end of 4 years and your savings account yields 5%
annul Interest, How much do you need to deposit today
A. P= $758.16, i = 6%
C. P= $858.16, i = 8%
B. P= $958.16, i = 6%
D. P= $658.16, i = 5%
Answer: D
Solution:
Reference: engineering.purdue.edu
66. A company borrows $100k today at 12% nominal annual interest compounded monthly. Find
a monthly payment of a 5year loan.
A. A=$2224
C. A=$7224
B. A=$7124
D. A=$3224
Answer: A
Solution:
Reference: engineering.purdue.edu
67. The annual nominal interest rate on the unpaid portion of a contract is 17% find the effective
annual interest rate if the interest is compounded quarterly
A. 2.1
C. 1
B. 0.111
D. 0.18
Answer: D
Solution:
Reference: engineering.purdue.edu
68. An asset is purchased for $100k the estimated life is 7 years and the salvage value is $15k.
Assuming the item is depreciated via-straight line method find the book value of the asset at
the end of 3 years
A. $50678
C. $56780
B. $63571
D. $65563
Answer: C
Solution:
Reference: engineering.purdue.edu
69. An investment has infinite life and makes annual payments of $3000 for the first 5 years and
$1600 per year thereafter. Using 6% interest per annum, compute the present worth of the
annual disbursements.
A. $3256
C. $3556
B. $4562
D. $6100
Answer: A
Solution:
Reference: engineering.purdue.edu
70. Interest on a debt is 12% per year compounded monthly. Compute the effective annual
interest rate.
A. 15.7%
C. 14.7%
B. 12.7%
D. 13.7%
Answer: B
Solution:
Reference: engineering.purdue.edu
71. A more efficient heating system adds $7,500 to the cost of your project. Adding this system
will save $1200 per year. If the discount rare it 8%, about how long will it take to pay back the
initial investment
A. 8 years
C. 9 years
B. 6 years
D. 7years
Answer: B
Solution:
Reference: engineering.purdue.edu
72. Permanent mineral rights on a parcel of land are purchased for an initial lump-sum payment
of $100k. profits from mining activities are $12k each year, and these profits are expected to
continue indefinitely. The interest rate earned on the initial investment is most nearly.
A. 7%
C. 12%
B. 8%
D. 88%
Answer: C
Solution:
Reference: engineering.purdue.edu
73. involves formulating, estimating, and evaluating the expected economic outcomes of
alternatives designed to accomplish a defined purpose.
A. Strength of Materials
C. Thermodynamics
B. Engineering Mechanics
D. Engineering Economy
Answer: D
Solution:
Engineering Economy involves formulating, estimating, and evaluating the expected economic
outcomes of alternatives designed to accomplish a defined purpose.
Reference: Wikipedia.org
74. Who is the father of Engineering Economy?
A. Eugene L. Grant
B. Isaac Newton
C. Galileo Galilei
D. Blaise Pascal
Answer: A
Solution:
Eugene L. Grant is the father of Engineering Economy
Reference: Wikipedia.org
Material Science
75. A block of gelatin is 60 mm by 60 mm by 20 mm when unstressed. A force of .245 N is
applied tangentially to the upper surface causing a 5 mm displacement relative to the lower
surface. The block is placed such that 60X60 comes on the lower and upper surface. Find the
shearing stress, shearing strain and shear modulus
A. 69.1N /m^2, 277.4N/m
C. 68.1N /m^2, 272.4N/m
B. 88.1N /m^2, 282.4N/m
D. 98.1N /m^2, 232.4N/m
Answer: C
Solution:
Reference: physicscatalyst.com
76. A thick uniform rubber rope of density 1.5 gcm-3 and Young Modulus 5X10106 Nm-2 has a
length 8 m. when hung from the ceiling of the room, the increase in length due to its own
weight would be?
A. 3.096m
C. 2.096m
B. 0.096m
D. 1.096m
Answer: B
Solution:
Reference: physicscatalyst.com
77. A steel wire of diameter 4 mm has a breaking strength of 4X105N. The breaking strength of
similar steel wire of diameter 2 mm is
A. 1X105N.
C. 4X105N
B. None of these
D. 16X105N.
Answer: A
Solutions:
Breaking strength is proportional to square of diameter,Since diameter becomes half,Breaking
strength reduced by 1/4 Hence A is correct.
Reference: physicscatalyst.com
78.
A. -4.648 x 10^-12kg
B. -3.648 x 10^-12kg
C. -4.648 x 10^12kg
D. 3.648 x 10^-12kg
Answer: B
Reference: chem.umd.ed
79. In the reaction H2O2(aq) → H2O(l) + ½ O2(g), the initial concentration of H2O2 is 0.2546 M,
and the initial rate of reaction is 9.32×10–4 M s–1. What will be [H2O2] at t = 35 s?
A. 0.2332M
C. 0.0233M
B.0.2220M
D. 0.0002M
Answer: B
Solution:
Reference: chm.uri.edu
80. In a non-flow process, there is heat transfer loss of 1055 kj and an internal energy increase of
210kj. Determine the work transfer and state whether the process is an expansion or
compression.
A. 1425kj
C. 1365kj
B. -1356kj
D. -1265kj
Answer: D
Solution:
Reference: dspace.bhos.edu.az
81. In a non-flow process carried out on 5.4 kg of a substance, there was a specific internal
energy decrease of 50kj/kg and a work transfer from the substance of 85 kj/kg. Determine
the heat transfer and state whether it is gain or loss
A. 200kj
C. 196kj
B. -189kj
D. 189kj
Answer: D
Solution:
Reference: dspace.bhos.edu.az
82. During the working stroke of an engine the heat transferred out of the system was 150 kj/kg
of the working substance. If the work done by the engine is 250kj/kg determine the change in
internal energy and state whether it is decrease or increase
A. -400kj/kg
C. 196kj /kg
B. -589kj/kg
D. 289kj/kg
Answer: A
Solution:
Reference: dspace.bhos.edu.az
83. 2kg of air is heated at constant pressure of 2 bar to 500degree Celsius. Determine the initial
temperature and the change in its entropy if the initial volume is 0.8m^3
A. -4.20kj/kgk
C. 2.05kj /kgk
B. 2.89kj/kgk
D. 2.89kj/kgk
Answer: A
Solution:
Reference: dspace.bhos.edu.az
84. What are the types of materials?
A. metals, polymers, ceramics, and composites
B. polymers, ceramics, and composites
C. metals, polymers, and ceramics
D. metals, polymers, and composites
Answer: A
Solution:
The four type of materials are
metals, polymers, ceramics, and composites
Reference: wikipedia.org
85. What is the origin for material science?
A. The age of the reason period
B. the Age of Enlightenment
C. the Age of Technology
D. None of these
Answer: B
Solution:
The intellectual origins of materials science stem from the Age of Enlightenment, when
researchers began to use analytical thinking from chemistry, physics, and engineering to
understand ancient, phenomenological observations in metallurgy and mineralogy.
Reference: wikipedia.org
86. Father of Material Science.
A. Morris E. Damban
B. Morris E. Robredo
Answer: D
Solution:
C. Morris E. Racal
D. Morris E. Fine
Morris E. Fine is Father of Material Science.
Reference: wikipedia.org
87. When did materials science begin?
A. 1920
B. 1940
C. 1980
D. 1970
Answer: D
Solution:
In 1970, as materials science was becoming established as a new, interdisciplinary field, the US
National Academy of Sciences commissioned an investigation into the history, present state, and
future prospects of research on materials.
Reference: wikipedia.org
ECE LAWS & ETHICS
88. Under RA 9292 who are authorized to render engineering consultation services?
A. Design Service
C. June 13, 1087
B. Professional Electronic Engineers
D. 18
Answer: B
Solution:
The RA 9292 who are authorized to render engineering consultation services is Professional
Electronic Engineers
Reference: studocu.com
89. Refers to the act of conceptualizing, planning and projecting a scheme, system and facility
using the arts and science of electronics along with social, economic, financial and technical
consideration.
A. Design Service
C. 18
B. June 13, 1087
D. Professional Electronic Engineers
Answer: A
Solution:
Design Service Refers to the act of conceptualizing, planning and projecting a scheme, system
and facility using the arts and science of electronics along with social, economic, financial and
technical consideration.
Reference: studocu.com
90. When was the effectivity of E.O. 205
A. Design Service
B. 18
C. Professional Electronic Engineers
D. June 13, 1087
Answer: D
Solution:
In June 13, 1087 E.O. 205 has granted its effectivity
Reference: studocu.com
91. MTRCB law defines an “adult” as a person _______ years of age and above
A. Design Service
C. 18
B. June 13, 1087
D. Professional Electronic Engineers
Answer: C
Solution:
MTRCB law defines an “adult” as a person 18 years of age and above
Reference: studocu.com
92. When was the Electronic Commerce Act of the Philippines approved?
A. June 14, 2000
C. 18
B. June 13, 1087
D. Professional Electronic Engineers
Answer: A
Solution:
In June 14, 2000 The Electronics Commerce Act of the Philippines was approved
Reference: studocu.com
93. When was RA 9292 approved by President GMA?
A. Design Service
C. 18
B. April 17, 2004
D. Professional Electronic Engineers
Answer: B
Solution:
In April 17, 2004 RA 9292 was approved by President GMA
Reference studocu.com
94. Under RA 9292, can a registered Electronics Engineer render design services?
A. none of these
C. no
B. maybe
D. yes
Answer: D
Solution:
Yes, Under RA 9292, can a registered Electronics Engineer render design services
Reference studocu.com
95. The maximum power suggested by KBP on 919-1312 AM broadcast station in Metro Manila is
_______.
A. 40kw
C. 18 kw
B. 20 kw
D. none of these
Answer: C
Solution:
The maximum power suggested by KBP on 919-1312 AM broadcast station in Metro Manila is
18kW.
Reference studocu.com
96. MTRCB Board is composed of a chairman, a vice chairman and _____ members?
A. 30
C. 15
B. professional electronics engineers and
D. review, sign and seal
registered electronics engineers
Answer: A
Solution:
MTRCB Board is composed of a chairman, a vice chairman and 30 members
Reference studocu.com
97. Which law created the Movie and Television Review and Classification Board
A. PD 1986
C. Professional Electronics Engineers and
B. 15
Registered Electronics Engineers
D. review, sign and seal
Answer: A
Solution:
PD 1986 the Movie and Television Review and Classification Board
Reference studocu.com
98. In metro manila, commercial load shall not exceed ____ minutes for one hour program
A. 15
D. professional electronics engineers and
B. pd 1986
registered electronics engineers
C. review, sign and seal
Answer: A
Solution:
In metro manila, commercial load shall not exceed 15 minutes for one hour program
Reference studocu.com
99. Under RA 9292, the Professional Electronics Engineer shall ____ the electronics plan
designed by a Registered Electronics Engineer?
A. review, sign and seal
B. both a and d
C. none of these
D. professional electronics engineers and registered electronics engineers
Answer: A
Solution:
Under RA 9292, the Professional Electronics Engineer shall Review, sign and seal the electronics
plan designed by a Registered Electronics Engineer?
Reference studocu.com
100. Under RA 9292, who are authorized to take charge or supervise electronics construction
and installation?
A. Professional Electronics Engineers and
C. none of these
Registered Electronics Engineers
D. Both A and B
B. review, sign and seal
Answer: A
Solution:
Professional Electronics Engineers and Registered Electronics Engineers
Reference studocu.com