ONLINE MCQ EE AND ECE-CONTROL SYSTEMS 4

1. __ can be used for converting the angular position of a shaft into electrical signal:
a) LVDT
b) Synchros
c) DC Servo motor
d) AC Servo motor

Answer  

2. Synchros are widely used for transmission of __ data:
a) Angular
b) Digital
c) Mathematical
d) Computed

Answer  

3. The input to a controller is always a/an __
a) Error
b) Servo
c) Amplifier
d) Sensor

Answer  

4. The thermocouple directly converts temperature into:
a) dc voltage
b) ac voltage
c) direct current
d) alternating current

Answer  

5. Potentiometers are used in control systems:
a) To improve frequency response
b) To improve time response
c) To improve stability
d) As error sensing transducer

Answer  

6. Tachometer is employed to measure
a) Rotational speed
b) Displacement
c) Torque developed
d) Driven shaft speed

Answer  

7. In a control system the comparator measures the differences between:
a) Output and input
b) Actual and desired performance
c) Controller and system
d) None of the above

Answer  

8. A signal other than the reference input that tends to affect the value of controlled variable is termed as:
a) Command
b) Error signal
c) Disturbance
d) Actuating signal

Answer  

9. The weighting function of the control system is called the __ response
a) Impulse
b) Transient
c) Steady state
d) None of the above

Answer  

10. In a control system the comparator compares the output response and reference input and actuates the:
a) Transducer
b) Signal Conditioner
c) Control element
d) Primary sensing element

Answer

ONLINE MCQ EE AND ECE-CONTROL SYSTEMS 5
ONLINE MCQ EE AND ECE-CONTROL SYSTEMS 3

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