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ISRO Technician-B
Instrument Mechanic
ISRO Technician-B Instrument Mechanic 2019
15

ISRO Technician-B Instrument Mechanic Question Paper - 2019 (Set-1) with Answer Key

15) The gain bandwidth product for an Operational amplifier is 1MHz. The gain of the Operational amplifier at 1 kHz is

0.001

1

100

1000

Answer is:

1000

ISRO Technician-B Instrument Mechanic Question Paper - 2019 (Set-1) with Answer Key

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Related ISRO Technician-B Instrument Mechanic Question Paper - 2019 (Set-1) with Answer Key

16) In a three phase power measurement by two wattmeter method, if both the watt meters have identical reading, the power factor of the load is

Unity

0.8 lagging

0.8 leading

Zero

Answer is:

Unity

17) What is the least count of a Vernier calliper if 9 divisions of the main scale is equal to 10 divisions on the Vernier scale and each division in the main scale is 1mm?

0.01 mm

0.1 mm

0.9 mm

10 mm

Answer is:

0.1 mm

18) Which of the following makes use of ferro resonance?

Crystal oscillator

Notch filter

Constant voltage transformer

Pulse width modulator

Answer is:

Constant voltage transformer

19) What is the use of an emitter follower circuit?

Differential Amplifier

Bandwidth improvement

Impedance matching

Voltage Amplification

Answer is:

Impedance matching

ISRO Technician-B Instrument Mechanic Question Paper - 2019 (Set-1) with Answer Key

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