Legal Metrology • Paper-II
The output is said to be zero state response because ________ conditions are made equal to zero.
A)
Initial
B)
Final
C)
Steady state
D)
Impulse response
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Initial' (Option A).
Legal Metrology • Paper-II
The ripple factor of a bridge rectifier is
A)
0.482
B)
3.771
C)
0.697
D)
2.111
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '0.697' (Option C).
Legal Metrology • Paper-II
The output Y of a NOR gate for input A and B is
A)
A+B
B)
overline(A+B)
C)
A+B
D)
AB
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'AB' (Option D).
Legal Metrology • Paper-II
The Boolean expression Y(A,B,C) = A+BC is to be realized using 2-input gates of only one type. What is the minimum number of gates required for the realization?
A)
1
B)
2
C)
3
D)
4 or more
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '1' (Option A).
Legal Metrology • Paper-II
If the differential voltage gain and the common mode voltage gain of a differential amplifier are 48 dB and 2 dB respectively, then its common mode rejection ratio is
A)
26 dB
B)
36 dB
C)
46 dB
D)
56 dB
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '46 dB' (Option C).
Legal Metrology • Paper-II
By increasing the number of identical stages in an amplifier, the gain bandwidth product
A)
Decreases
B)
Becomes unity
C)
Remains constant
D)
Increases
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Decreases' (Option A).
Legal Metrology • Paper-II
In a full wave rectifier, if the input frequency is 50 Hz, then output frequency will be
A)
1 Hz
B)
10 Hz
C)
50 Hz
D)
100 Hz
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '1 Hz' (Option A).
Legal Metrology • Paper-II
The maximum efficiency of full wave rectification is
A)
51.2 %
B)
61.2 %
C)
71.2 %
D)
81.2 %
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '51.2 %' (Option A).
Legal Metrology • Paper-II
If the sum of products functions f(X,Y,Z) = Σ(2,3,4,5), the prime implicants are
A)
XY, XY
B)
XY, XYZ, XYZ
C)
XYZ, XYZ, XY
D)
XYZ, XYZ, XYZ, XYZ
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'XY, XY' (Option A).
Legal Metrology • Paper-II
What is the characteristic of a good control system?
A)
Sensitive to parameter variation
B)
Insensitive to input commands
C)
Neither sensitive to parameter variation nor sensitive to input commands
D)
Insensitive to parameter variation but Sensitive to input commands
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Sensitive to parameter variation' (Option A).
Legal Metrology • Paper-II
The dominant mode in a rectangular waveguide is TE because this mode has
A)
No attenuation
B)
No cut off
C)
No magnetic field component
D)
The highest cut off wavelength
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'No attenuation' (Option A).
Legal Metrology • Paper-II
A flip-flop is a
A)
Combinational logic circuit and edge sensitive
B)
Sequential logic circuit and edge sensitive
C)
Combinational logic circuit and level sensitive
D)
Sequential logic circuit and level sensitive
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Combinational logic circuit and edge sensitive' (Option A).
Legal Metrology • Paper-II
A 10 bit D/A converter given a maximum output of 10.23 V. The resolution is
A)
10 mV
B)
20 mV
C)
30 mV
D)
40 mV
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '40 mV' (Option D).
Legal Metrology • Paper-II
A master-slave flip-flop has the characteristic that
A)
Change in the input is immediately reflected in the output
B)
Change in the output occurs when the state of the master is affected
C)
Change in the output occurs when the state of the slave is affected
D)
Both the master and the slave states are affected at the same
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Change in the input is immediately reflected in the output' (Option A).
Legal Metrology • Paper-II
A 4-bit Johnson counter is initialized to 0101. Whenever the state 1011 is reached, the counter is reinitialized to 0000 at the next clock active edge. Again when the state 0001 is reached, the counter is initialized back to 0101 at the next clock active edge. The cycle length of the counter is
A)
6
B)
8
C)
16
D)
12
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '12' (Option D).
Legal Metrology • Paper-II
If A and B are Boolean variables, then what is (A+B).(A+B) equals to
A)
B
B)
A
C)
A+B
D)
AB
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'B' (Option A).
Legal Metrology • Paper-II
Signal flow graph is used to find
A)
Stability of the system
B)
Controllability of the system
C)
Transfer function of the system
D)
Poles of the system
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Controllability of the system' (Option B).
Legal Metrology • Paper-II
In second order system, which among the following remains independent of gain (k)?
A)
Open loop poles
B)
Closed loop poles
C)
Both (a) and (b)
D)
None of these
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Both (a) and (b)' (Option C).
Legal Metrology • Paper-II
Which memory requires periodic recharging
A)
All ROMS
B)
All RAMS
C)
Static RAM
D)
Dynamic RAM
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'All RAMS' (Option B).
Legal Metrology • Paper-II
What are the minimum numbers of NOT gates and 2-input OR gates required to design the logic of the driver for 7 segment display?
A)
3 NOT and 4 OR
B)
2 NOT and 4 OR
C)
1 NOT and 3 OR
D)
2 NOT and 3 OR
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is '3 NOT and 4 OR' (Option A).
Legal Metrology • Paper-II
The ‘T’ Flip-Flop derives its name from its operation, which is ________.
A)
Toggle
B)
Trigger
C)
Transistor
D)
None of these
Correct option: A — Toggle. This matches the standard definition/result for the stated question.
Legal Metrology • Paper-II
A cascode amplifier has the advantage of
A)
Low input capacitance
B)
Low input impedance
C)
High transconductance
D)
Large voltage gain
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Low input capacitance' (Option A).
Legal Metrology • Paper-II
Which of the follow is not a sinusoidal oscillator?
A)
Crystal oscillator
B)
RC phase shift oscillator
C)
LC oscillator
D)
Relaxation oscillator
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Relaxation oscillator' (Option D).
Legal Metrology • Paper-II
A charge ‘Q’ is divided between two point charges. What should be the value of this charge on the objects so that the force between them is maximum?
A)
Q/3
B)
Q/2
C)
(Q-2)
D)
2Q
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Q/3' (Option A).
Legal Metrology • Paper-II
The line integral of the vector potential A around the boundary of a source S represents which one of the following?
A)
Flux through the surface S
B)
Flux density in the surface S
C)
Magnetic field intensity
D)
Current density
Based on established principles in Electrical / Electronics Engineering, the correct and most appropriate choice is 'Flux through the surface S' (Option A).
