Measurement and Instrumentation

11. A potentiometer may be used for

1. measurement of resistance
2. measurement of current
3. calibration of ammeter
4. calibration of voltmeter
5. all of the above

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12. A power factor meter has

1. one current circuit and two pressure circuits
2. one current circuit and one pressure circuit
3. two current circuits and one pres¬sure circuit
4. none of the above

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13. A sensitive galvanometer produces large deflection for a

1. small value of current
2. large value of current
3. large value of power
4. large value of voltage

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14. A universal RLC bridge uses

1. Maxwell bridge configuration for measurement of inductance and De Santas bridge for measurement of capacitance
2. Maxwell Wein bridge for measurement of inductance and modified De Santy's bridge for measurement of capacitance
3. Maxwell Wein bridge for measurement of inductance and Wein bridge for measurement of capacitance
4. Any of the above.

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15. A voltage of about 200 V can be measured

1. directly by a D.C. potentiometer
2. a D.C. potentiometer in conjunction with a volt ratio box
3. a D.C. potentiometer in conjunction with a known resistance
4. none of the above

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16. A Weston frequency meter is

1. moving coil instrument
2. moving iron instrument
3. dynamometer instrument
4. none of the above

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17. A Weston synchronoscope is a

1. moving coil instrument
2. moving iron instrument
3. dynamometer instrument
4. none of the above

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18. Alternating current is measured by

1. induction ammeter
2. permanent magnet type ammeter
3. electrostatic ammeter
4. moving iron repulsion type voltmeter

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19. An ammeter is a

1. secondary instrument
2. absolute instrument
3. recording instrument
4. integrating instrument

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20. An induction meter can handle current up to

1. 0.416666666666667
2. 30 A
3. 60 A
4. 100 A

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