Digital Control System Solved MCQs Answers

1. : One of the following is an integrating instrument.
(A) Watt-hour meter
(B) Ammeters
(C) Voltmeter
(D) Watt meter

2. : Anderson bridge is used to measure ____.
(A) Capacitance (C)
(B) Voltage (V)
(C) Current (I)
(D) Inductance (L)

3. : One of the following instruments is used to measure resistances.
(A) Voltmeters
(B) Wattmeters
(C) Ammeters
(D) Ohm meters

4. : ____ bridge is used to measure frequency.
(A) Schering’s
(B) De Sauty’s
(C) Anderson’s
(D) Wien’s

5. : A radiation thermometer is used for _____ temperature.
(A) Below 700°C
(B) Below 200°C
(C) Above 1400°C
(D) Above 400°C

6. : In a Schering bridge, the potential of the detector above earth potential is about _____.
(A) Few volts
(B) 100 kV
(C) 1000 kV
(D) 1200 V

7. : Induction meter handles ______ current.
(A) 100 A
(B) 30 A
(C) 10 A
(D) 12 A

8. : Material of a permanent magnet is ____.
(A) Alnico
(B) Tungsten steel
(C) Soft iron
(D) Stainless steel

9. : Loss of charge method is used to measure _____.
(A) Insulation resistance of cable
(B) Resistance of shunt
(C) Resistance of shunt winding
(D) Both A and B

10. : Potentiometer is used for ____ measurement.
(A) Resistance
(B) Current
(C) Voltage
(D) All of these