Explore topic-wise MCQs in Electrical Engineering Questions.

This section includes 102 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.

51.

In a control system integral error compensation _________________ steady state error?
A. increases
B. minimizes
C. does not have any effect on
D. any of the above
Answer» C. does not have any effect on
Discussion
52.

When the initial conditions of a system are specified to be zero it implies that the system is______________?
A. at rest without any energy stored in it
B. working normally with reference input
C. working normally with zero reference input
D. at rest but stores energy
Answer» E.
Discussion
53.

____________technique is not applicable to nonlinear system ?
A. Nyquist Criterion
B. Quasi linearization
C. Functional analysis
D. Phase-plane representation
Answer» B. Quasi linearization
Discussion
54.

When the initial conditions of a system are specified to be zero it implies that the system is________________?
A. at rest without any energy stored in it
B. working normally with reference input
C. working normally with zero reference input
D. at rest but stores energy
Answer» E.
Discussion
55.

Which of the following can be measured by the use of a tachogenerator ?
A. Acceleration
B. Speed
C. Speed and acceleration
D. Displacement
E. None of the above
Answer» C. Speed and acceleration
Discussion
56.

Which of the following devices is used for conversion of co-ordinates ?
A. Microsyn
B. Selsyn
C. Synchro-resolver
D. Synchro-transformer
Answer» D. Synchro-transformer
Discussion
57.

A phase lag lead network introduces in the output_______________?
A. lag at all frequencies
B. lag at high frequencies and lead at low frequencies
C. lag at low frequencies and lead at high frequencies
D. none of the above
Answer» D. none of the above
Discussion
58.

An increase in gain, in most systems, leads to_____________?
A. smaller damping ratio
B. larger damping ratio
C. constant damping ratio
D. none of the above
Answer» B. larger damping ratio
Discussion
59.

Which of the following is the definition of proportional band of a controller ?
A. The range of air output as measured variable varies from maximum to minimum
B. The range of measured variables from set value
C. The range of measured variables through which the air output changes from maximum to minimum
D. Any of the above
E. None of the above
Answer» D. Any of the above
Discussion
60.

A conditionally stable system exhibits poor stability at______________?
A. low frequencies
B. reduced values of open loop gain
C. increased values of open loop gain
D. none of the above
Answer» C. increased values of open loop gain
Discussion
61.

In a system low friction co-efficient facilitates___________?
A. reduced velocity lag error
B. increased velocity lag error
C. increased speed of response
D. reduced time constant of the system
Answer» B. increased velocity lag error
Discussion
62.

Static error coefficients are used as a measure of the effectiveness of closed loop systems for specified ___________ input signal?
A. acceleration
B. velocity
C. position
D. all of the above
Answer» E.
Discussion
63.

The type 1 system has _________ at the origin?
A. no pole
B. net pole
C. simple pole
D. two poles
Answer» D. two poles
Discussion
64.

The type 2 system has __________ at the origin?
A. no net pole
B. net pole
C. simple pole
D. two poles
Answer» E.
Discussion
65.

The frequency and time domain are related through which of the following ?
A. Laplace Transform and Fourier Integral
B. Laplace Transform
C. Fourier Integral
D. Either B. or C.
Answer» B. Laplace Transform
Discussion
66.

The phase lag produced by transportation relays_____________?
A. is independent of frequency
B. is inverseh’proportional to frequency
C. increases linearly with frequency
D. decreases linearly with frequency
Answer» D. decreases linearly with frequency
Discussion
67.

Spring constant in force-voltage analogy is analogous to_____________?
A. capacitance
B. reciprocal of capacitance
C. current
D. resistance
Answer» C. current
Discussion
68.

Which of the following can be measured by LVDT ?
A. Displacement
B. Velocity
C. Acceleration
D. Any of the above
Answer» E.
Discussion
69.

Velocity error constant of a system is measured when the input to the system is unit ___________ function?
A. parabolic
B. ramp
C. impulse
D. step
Answer» C. impulse
Discussion
70.

Which of the following is an electromagnetically device ?
A. Induction relay
B. Thermocouple
C. LVDT
D. Any of the above
E. None of the above
Answer» D. Any of the above
Discussion
71.

In pneumatic control systems the control valve used as final control element converts____________?
A. pressure signal to electric signal
B. pressure signal to position change
C. electric signal to pressure signal
D. position change to pressure signal
E. none of the above
Answer» C. electric signal to pressure signal
Discussion
72.

The effect of error damping is to______________?
A. provide larger settling lime
B. delay the response
C. reduce steady state error
D. any of the above
E. none of the above
Answer» D. any of the above
Discussion
73.

__________________can be extended to systems which are time-varying ?
A. Bode-Nyquist stability methods
B. Transfer functions
C. Root locus design
D. State model representatives
Answer» E.
Discussion
74.

In order to increase the damping of a badly underdamped system which of following compensators may be used ?
A. Phase-lead
B. Phase-lag
C. Both A. and B.
D. Either A. and B.
E. None of the above
Answer» B. Phase-lag
Discussion
75.

With feed back ____________ reduces?
A. system stability
B. system gain
C. system stability and gain
D. none of the above
Answer» C. system stability and gain
Discussion
76.

The first order control system, which is well designed, has a_______________?
A. small bandwidth
B. negative time constant
C. large negative transfer function pole
D. none of the above
Answer» D. none of the above
Discussion
77.

If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is_____________?
A. not necessarily stable
B. stable
C. unstable
D. any of the above
Answer» B. stable
Discussion
78.

signal will become zero when the feedback signal and reference signs are equal?
A. Input
B. Actuating
C. Feedback
D. Reference
Answer» C. Feedback
Discussion
79.

The transfer function is applicable to which of the following ?
A. Linear and time-in variant systems
B. Linear and time-variant systems
C. Linear systems
D. Non-linear systems
E. None of the above
Answer» B. Linear and time-variant systems
Discussion
80.

The capacitance, in force-current analogy, is analogous to_____________?
A. momentum
B. velocity
C. displacement
D. mass
Answer» E.
Discussion
81.

________________directly converts temperature into voltage?
A. Thermocouple
B. Potentiometer
C. Gear train
D. LVDT
E. None of the above
Answer» B. Potentiometer
Discussion
82.

In a system zero initial condition means that______________?
A. The system is at rest and no energy is stored in any of its components
B. The system is working with zero stored energy
C. The system is working with zero reference signal
Answer» B. The system is working with zero stored energy
Discussion
83.

_____________is the reference input minus the primary feedback?
A. Manipulated variable
B. Zero sequence
C. Actuating signal
D. Primary feedback
Answer» D. Primary feedback
Discussion
84.

______________By which of the following the system response can be tested better ?
A. Ramp input signal
B. Sinusoidal input signal
C. Unit impulse input signal
D. Exponentially decaying signal
Answer» D. Exponentially decaying signal
Discussion
85.

The temperature, under thermal and electrical system analogy, is considered analogous to_______________?
A. voltage
B. current
C. capacitance
D. charge
E. none of the above
Answer» B. current
Discussion
86.

___________From which of the following transfer function can be obtained ?
A. Signal flow graph
B. Analogous table
C. Output-input ratio
D. Standard block system
E. None of the above
Answer» B. Analogous table
Discussion
87.

Which of the following is exhibited by Root locus diagrams ?
A. The poles of the transfer function for a set of parameter values
B. The bandwidth of the system
C. The response of a system to a step input
D. The frequency response of a system
E. None of the above
Answer» B. The bandwidth of the system
Discussion
88.

In liquid level and electrical system analogy, voltage is considered analogous to_____________?
A. head
B. liquid flow
C. liquid flow rate
D. none of the above
Answer» B. liquid flow
Discussion
89.

Which of the following is the output of a thermocouple ?
A. Alternating current
B. Direct current
C. A.C. voltage
D. D.C. voltage
E. None of the above
Answer» E. None of the above
Discussion
90.

Mass, in force-voltage analogy, is analogous to________________?
A. charge
B. current
C. inductance
D. resistance
Answer» D. resistance
Discussion
91.

In thermal-electrical analogy charge is considered analogous to_______________?
A. heat flow
B. reciprocal of heat flow
C. reciprocal of temperature
D. temperature
E. none of the above
Answer» E. none of the above
Discussion
92.

In force-voltage analogy, velocity is analogous to______________?
A. current
B. charge
C. inductance
D. capacitance
Answer» B. charge
Discussion
93.

The viscous friction co-efficient, in force-voltage analogy, is analogous to______________?
A. charge
B. resistance
C. reciprocal of inductance
D. reciprocal of conductance
E. none of the above
Answer» C. reciprocal of inductance
Discussion
94.

In electrical-pneumatic system analogy the current is considered analogous to_____________?
A. velocity
B. pressure
C. air flow
D. air flow rate
Answer» E.
Discussion
95.

A signal other than the reference input that tends to affect the value of controlled variable is known as_________________?
A. disturbance
B. command
C. control element
D. reference input
Answer» B. command
Discussion
96.

The transient response of a system is mainly due to________________?
A. inertia forces
B. internal forces
C. stored energy
D. friction
Answer» D. friction
Discussion
97.

The type 0 system has ___________ at the origin?
A. no pole
B. net pole
C. simple pole
D. two poles
E. none of the above
Answer» B. net pole
Discussion
98.

Which of the following is the best method for determining the stability and transient response ?
A. Root locus
B. Bode plot
C. Nyquist plot
D. None of the above
Answer» B. Bode plot
Discussion
99.

Phase margin of a system is used to specify which of the following ?
A. Frequency response
B. Absolute stability
C. Relative stability
D. Time response
Answer» D. Time response
Discussion
100.

The position and velocity errors of a type-2 system are_____________?
A. constant, constant
B. constant, infinity
C. zero, constant
D. zero, zero
Answer» D. zero, zero
Discussion