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Automatic Control Systems

Automatic Control Systems
Robotic manipulator arms mostly use

Pneumatic actuator
Electric motor actuator
None of these
Hydraulic actuator

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Automatic Control Systems
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

1, 2 and 3
1 and 2
All
3 and 4

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Automatic Control Systems
In force current analogue, mechanical mobility is analogous to

Impedance Z
Reactance X
Admittance Y
Conductance G

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Automatic Control Systems
For any transfer function, the constant phase angle loci are

A family of circles
A family of straight lines
Either (a) or (b)
Neither (a) nor (b)

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Automatic Control Systems
Gain margin and phase margin can be determined from Bode plots as well as Nyquist plot.

True
False

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Automatic Control Systems
In force current analogy, displacement x is analogous to

Magnetic flux linkage
Charge
Voltage
Electrostatic energy

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