Q.1
Nichols chart consists of
Q.2
The sensor generally used in incremental optical encoder is
Q.3
Bandwidth is proportional to speed of response.
Q.4
For type 1 system the velocity lag error is
Q.5
Magnetic amplifier is used for
Q.6
Which control action can never be used alone?
Q.7
The effect of adding poles and zeros can be determined quickly by
Q.8
Which of the following can be used as a rotating amplifier in a control system?
1. Amplidyne
2. Separately excited dc generator
3. Synchro
4. Self excited dc generator
Q.9
For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency.
Q.10
In the field controlled motor the entire damping comes from
Q.11
Nyquist stability criterion uses open loop frequency response characteristics.
Q.12
A lead compensator
Q.13
In control systems the output of sensor usually, is
Q.14
In Bode plots the frequency at which two asymptotes meet is called corner frequency.
Q.15
Integral control action
Q.16
The relative stability of a system is given by
Q.17
Transport lag usually exists in
Q.18
M circles are symmetrical with respect to
Q.19
Gain margin and phase margin can be determined from Bode plots as well as Nyquist plot.
Q.20
Robotic manipulator arms mostly use
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