MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Quiz
Electrical Engineering
Electrical Control Systems
Quiz 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Q.1
Zero initial condition for a system means
input reference signal is zero
zero stored energy
ne initial movement of moving parts
system is at rest and no energy is stored in any of its components
Q.2
An automatic toaster is a ______ loop control system.
open
closed
partially closed
any of the above
Q.3
Is an open loop control system.
Ward Leonard control
Field controlled D.C. motor
Stroboscope
Metadyne
Q.4
A phase lag lead network introduces in the output
lag at all frequencies
lag at high frequencies and lead at low frequencies
lag at low frequencies and lead at high frequencies
none of the above
Q.5
The capacitance, in force-current analogy, is analogous to
momentum
velocity
displacement
mass
Q.6
The viscous friction co-efficient, in force-voltage analogy, is analogous to
charge
resistance
reciprocal of inductance
reciprocal of conductance
none of the above
Q.7
Mass, in force-voltage analogy, is analogous to
charge
current
inductance
resistance
Q.8
A differentiator is usually not a part of a control system because it
reduces damping
reduces the gain margin
increases input noise
increases error
Q.9
Which of the following is the definition of proportional band of a controller ?
The range of air output as measured variable varies from maximum to minimum
The range of measured variables from set value
The range of measured variables through which the air output changes from maximum to minimum
Any of the above
None of the above
Q.10
has tendency to oscillate.
Open loop system
Closed loop system
Both (A) and (B)
Neither (A) nor (B)
Q.11
An amplidyne can give which of the following characteristics ?
Constant current
Constant voltage
Constant current as well as constant voltage
Constant current, constant voltage and constant power
None of the above
Q.12
In a control system the output of the controller is given to
Final control element
Amplifier
Comparator
Sensor
Q.13
technique is not applicable to nonlinear system ?
Nyquist Criterion
Quasi linearization
Functional analysis
Phase-plane representation
Q.14
By which of the following the system response can be tested better ?
Ramp input signal
Sinusoidal input signal
Unit impulse input signal
Exponentially decaying signal
Q.15
A signal other than the reference input that tends to affect the value of controlled variable is known as
Disturbance
Command
Control element
Reference input
Q.16
The first order control system, which is well designed, has a
small bandwidth
negative time constant
large negative transfer function pole
none of the above
Q.17
A good control system has all the following features except
good stability
slow response
good accuracy
sufficient power handling capacity
Q.18
In closed loop control system, with positive value of feedback gain the overall gain of the system will
decrease
increase
be unaffected
any of the above
Q.19
Is not a final control element.
Control valve
Potentiometer
Electropneumatic converter
Servomotor
Q.20
Signal will become zero when the feedback signal and reference signs are equal.
Input
Actuating
Feedback
Reference
Q.21
For open control system which of the following statements is incorrect ?
Less expensive
Recalibration is not required for maintaining the required quality of the output
Construction is simple and maintenance easy
Errors are caused by disturbances
Q.22
A.C. servomotor is basically a
universal motor
single phase induction motor
two phase induction motor
three phase induction motor
Q.23
Regenerative feedback implies feedback with
oscillations
step input
negative sign
positive sign
Q.24
A conditionally stable system exhibits poor stability at
low frequencies
reduced values of open loop gain
increased values of open loop gain
none of the above
Q.25
Is a part of the human temperature control system.
Digestive system
Perspiration system
Ear
Leg movement
Q.26
Which of the following is the non-linearity caused by servomotor ?
Static friction
Backlash
Saturation
None of the above
Q.27
The output of a feedback control system must be a function of
reference and output
reference and input
input and feedback signal
output and feedback signal
Q.28
Which of the following is the input to a controller ?
Servo signal
Desired variable value
Error signal
Sensed signal
Q.29
Static error coefficients are used as a measure of the effectiveness of closed loop systems for specified ________ input signal.
acceleration
velocity
position
all of the above
Q.30
A.C. servomotor resembles
two phase induction motor
Three phase induction motor
direct current series motor
universal motor
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page