MES Jr. Grade • Paper-II
When charged particle is projected opposite to direction of magnetic field, it experiences force equal to
A)
qvB × cosu
B)
qvB × sinu
C)
qvB
D)
zero
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'qvB × sinu' (Option B).
MES Jr. Grade • Paper-II
Choose which of following condition is not required for a waveguide to exist.
A)
The dimensions should be in accordance with desired frequency
B)
Cut-off frequency should be minimum 6 GHz
C)
The shape should be spherical
D)
No specific condition is required for waveguide design
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Cut-off frequency should be minimum 6 GHz' (Option B).
MES Jr. Grade • Paper-II
Which of the following electrical characteristics is not exhibited by an ideal op-amp?
A)
Infinite voltage gain
B)
Infinite bandwidth
C)
Infinite output resistance
D)
Infinite slew rate
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Infinite output resistance' (Option C).
MES Jr. Grade • Paper-II
According to Boolean law: A + 1 = ?
A)
1
B)
A
C)
0
D)
A’
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'A’' (Option D).
MES Jr. Grade • Paper-II
Which one of the following statements is not correct?
A)
Root loci can be used for analyzing stability and transient performance
B)
Root loci provide insight into system stability and performance
C)
Shape of the root locus gives idea of type of controller needed to meet design specification
D)
Root locus can be used to handle more than one variable at a time
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Root loci provide insight into system stability and performance' (Option B).
MES Jr. Grade • Paper-II
Root locus of s(s+2) + K(s+4) = 0 is a circle. What are the coordinates of the center of this circle?
A)
-2,0
B)
-3,0
C)
-4,0
D)
-5,0
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '-3,0' (Option B).
MES Jr. Grade • Paper-II
An ideal op-amp requires infinite bandwidth because
A)
Signals can be amplified without attenuation
B)
Output common-mode noise voltage is zero
C)
Output voltage occurs simultaneously with input voltage changes
D)
Output can drive infinite number of device
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Output can drive infinite number of device' (Option D).
MES Jr. Grade • Paper-II
“Total electric flux through any closed surface is equal to the charge enclosed by that surface”. This is
A)
Lenz’s law
B)
Gauss’s law
C)
Maxwell’s law
D)
Faraday’s law
Based on established principles in Law, the correct and most appropriate choice is 'Gauss’s law' (Option B).
MES Jr. Grade • Paper-II
Which of the following is not an example for non-sinusoidal oscillator?
A)
Sawtooth Generators
B)
Blocking oscillators
C)
Multivibrator
D)
Crystal oscillators
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Crystal oscillators' (Option D).
MES Jr. Grade • Paper-II
Find the output voltage of an ideal op-amp. If V1 and V2 are the two input voltages
A)
VO = V1 - V2
B)
VO = A × (V1 - V2)
C)
VO = A × (V1 + V2)
D)
VO = V1 × V2
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'VO = V1 × V2' (Option D).
MES Jr. Grade • Paper-II
Why is a demultiplexer called a data distributor?
A)
The input will be distributed to one of the outputs
B)
One of the inputs will be selected for the output
C)
The output will be distributed to one of the inputs
D)
Single input gives single output
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'One of the inputs will be selected for the output' (Option B).
MES Jr. Grade • Paper-II
Bridge rectifier is an alternative for
A)
Full wave rectifier
B)
Peak rectifier
C)
Half wave rectifier
D)
None of the mentioned
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Half wave rectifier' (Option C).
MES Jr. Grade • Paper-II
The base emitter voltage in a cut off region is_________
A)
greater than 0.7V
B)
equal to 0.7V
C)
less than 0.7V
D)
cannot be predicted
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'greater than 0.7V' (Option A).
MES Jr. Grade • Paper-II
According to the coulomb’s law, the force between two point charges is
A)
Directly proportional to the product of the charges
B)
Inversely proportional to the square of the distance between them
C)
Along the line joining them
D)
All of these
Based on established principles in Law, the correct and most appropriate choice is 'All of these' (Option D).
MES Jr. Grade • Paper-II
Consider the following statements: Nichol’s chart gives information about i. Closed loop frequency response. ii. The value of the peak magnitude of the closed loop frequency response Mp. iii. The frequency at which Mp occurs. Which of the above statements are correct?
A)
ii and iii
B)
i and ii
C)
i and iii
D)
i, ii and iii
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'ii and iii' (Option A).
MES Jr. Grade • Paper-II
The amount of work done in moving a charge from one point to another along an equipotential line or surface charge is
A)
Zero
B)
Infinity
C)
One
D)
Two
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Infinity' (Option B).
MES Jr. Grade • Paper-II
Find the total flux in a coil of magnetic flux density 12 units and area 7 units.
A)
0.84
B)
0.96
C)
8.4
D)
9.6
Based on established principles in the relevant subject area, the correct and most appropriate choice is '0.96' (Option B).
MES Jr. Grade • Paper-II
Transistor in power amplifier is
A)
An active device
B)
A passive device
C)
A op-amp
D)
A voltage generating device
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'An active device' (Option A).
MES Jr. Grade • Paper-II
The value of feedback resistor and resistor connected in series with the input signal source are equal to 10 kW and 3.3 kW. Calculate the closed loop voltage gain?
A)
-6.7
B)
-33
C)
-13.3
D)
-3.33
Based on established principles in the relevant subject area, the correct and most appropriate choice is '-3.33' (Option D).
MES Jr. Grade • Paper-II
Relaxation oscillators are also known as ___________
A)
Multivibrator
B)
Phase shift oscillators
C)
Blocking oscillators
D)
Saw tooth generator
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Multivibrator' (Option A).
MES Jr. Grade • Paper-II
Power amplifier directly amplifies
A)
Voltage of signal
B)
Current of the signal
C)
Power of the signal
D)
All of the mentioned
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Power of the signal' (Option C).
MES Jr. Grade • Paper-II
In 1-to-4 demultiplexer, how many select lines are required?
A)
2
B)
3
C)
4
D)
5
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '2' (Option A).
MES Jr. Grade • Paper-II
The use of amplifier in a circuit is to _____________ for input signal
A)
Provide a phase shift
B)
Provide strength
C)
Provide frequency enhancement
D)
Make circuit compatible
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Provide frequency enhancement' (Option C).
MES Jr. Grade • Paper-II
Find the input voltage of an ideal op-amp. It’s one of the inputs and output voltages are 2V and 12V. (Gain = 3)
A)
8v
B)
4v
C)
-4v
D)
-2v
Based on established principles in the relevant subject area, the correct and most appropriate choice is '8v' (Option A).
MES Jr. Grade • Paper-II
For a stable closed loop system, the gain at phase crossover frequency should always be:
A)
< 20 dB
B)
< 6 dB
C)
> 6 dB
D)
> 0 dB
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '< 20 dB' (Option A).
