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Automatic Control Systems

Automatic Control Systems
The sensor generally used in incremental optical encoder is

LED
LCD
Either (a) or (b)
Photodiode

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Automatic Control Systems
Robotic manipulator arms mostly use

None of these
Electric motor actuator
Hydraulic actuator
Pneumatic 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
All
3 and 4
1 and 2

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Automatic Control Systems
Which dc servomotor requires strongest permanent magnet?

Slotted armature
Surface wound armature
Surface wound with stationary rotor
Either A or B

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Automatic Control Systems
Which control action can never be used alone?

Integral
Both (b) and (c)
Proportional
Derivative

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Automatic Control Systems
Temperature is analogous to

Charge
Flux
None of these
Voltage

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