# Series 2

```Institute of Electronics Engineers
Of The Philippines
University of Pangasinan
Student Chapter
START
QUIZ
Engr. Cezar N. Velasco Jr., ECE
EST
1 / 28
Modulator circuit performs what mathematical
operation on its two inputs?
b. Multiplication
c. Division
d. Square root
EST
2 / 28
What is produced by over modulation in AM?
Splatter
Electronics
3 / 28
Suppose there is an atom containing eight protons and eight
neutrons in the nucleus, and two neutron are added to the
nucleus, the resulting atomic weight is about
18
Electronics
4/ 28
If an element has an atomic number of 12, there are how
many protons and electrons?
12 protons and 12 electrons
Math
5 / 28
A theorem which states that under very general conditions,
the distribution of the sum of a large number of independent
random variables is assymptotically normal, regardless of the
distribution of the individual variables
a. Central Limit Theorem
b. Freunlich Isotherm
c. Central Limit Isotherm
d. Limit Theorem
Math
6/ 28
It is a graph of a sample values plotted on the x-y plane.
a. Splatter diagram
b. Sniffer diagram
c. Clipper Diagram
d. Scatter diagram
GEAS
7 / 28
What alloy is 40-60% copper and nickel and has a high
electrical resistance and is used in thermocouples?
Constantan
GEAS
8 / 28
What is the amount of energy required to fracture a given
volume of material?
a. Creep
b. Electric field
c. Impact Strength
d. Energy gap
Electronics
9 / 28
A material that contains an abundance of free carrier is
called
conductor
Electronics
1 0/ 28
Isotope means, the same element but with different number
of
a. electrons
b. neutrons
c. protons
d. atoms
Math
1 1/ 28
A coin is tossed seven times, generating a sequence of heads
(H) and tails (T). How many different sequence are possible
128
Math
1 2/ 28
The average vertical speed of an experimental rocket is 1200
km. per hr. during its flight. Upon reaching its maximum
height, it released a capsule which descended at an average
vertical speed of 630 km/hr. If the capsule touched the earth
90 mins. after the rocket was launched, find the height
reached by the rocket.
X = 619 and 36/61 km
GEAS
13 / 28
Fluid that conducts electricity is _________
Electrolyte
GEAS
14 / 28
What is a deformation caused by the application of an
external force?
a. Strain
b. Stress
c. Torsion
d. All the above
EST
15 / 28
The values of Vmax and Vmin as read from an AM
wave on an oscilloscope are 2.8 and 0.3. The
percentage of the modulation is
80.6 percent
EST
16 / 28
The maximum deviation of an FM carrier is 2 kHz by a
maximum modulating signal of 400 Hz. The deviation ratio is
5
EST
1 7/ 28
If the carrier of a 100 percent modulated AM wave is
suppressed, the percentage power saving will be
66.66
Electronics
1 8/ 28
Charge body at rest is said to exhibit electric field, which
interacts with other bodies. The study of this phenomena is
known as
Electrostatics
Electronics
19 / 28
Determine the force in Newton between 4μC charges
separated by 0.1 meter in air.
14.4 N
Math
20 / 28
Find the area bounded by the curves y=x³ and y=4-3x²
27/4 sq. units
Math
21 / 28
Find the rectangular equation of x=3cosθ and y=2sinθ and
determine what kind of curve it is.
x² / 9 + y² / 4 = 1
Math
22 / 28
Find 2a2/3bc2 - 4b/9a2c3
6a4c– 4b2 / 9a2b3
EST
23/ 28
The term used to refer to the reduction of receiver gain
caused by the signal of a nearby station transmitter in the
same frequency band?
Desensitizing
EST
24 / 28
What determines the selectivity of a receiver?
a. The bandwidth of the tuned circuits
b. The gain of the amplifier
c. The power handling capability
d. The frequency stability
Electronics
25/ 28
Calculate the electric field intensity 10cm from a charge
Q=5nC.
a. 450 N/C
b. 900 N/C
c. 4.5 x 103 N/C
d. 9.0 x 103 N/C
GEAS
26 / 28
“Magnetic susceptibilities of most paramagnetic materials
are inversely proportional to their absolute temperatures”
this is known as
Curie law
GEAS
27 / 28
The amount of energy per unit volume which the material
will possess when subjected to the elastic limit stress is
called ________.
Modulus of Resilience
GEAS
28 / 28
Science which deals with the preparation and application of
metals and alloys
Metallurgy
Get Inspired
“When things go wrong as they sometimes will,
When the road you’re trudging seems all uphill,
When the funds are low and the debts are high,
And you want to smile but you have to sigh,
When care is pressing you down a bit,
Rest if you must but don’t quit!”
```

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