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ISRO
ISRO Technician-B
Electronic Mechanic
ISRO Technician-B Electronic Mechanic 2019
23

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

23) Which of the following is not true for an inductor?

An inductor can store energy.

An inductor current cannot change instantaneously.

An inductor acts as oper to dc.

An inductor can be used to reduce ripple voltage

Answer is:

An inductor acts as oper to dc.

Which of the following is not true for an inductor?

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

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

24) Number of solutions for the system of linear equations 2x-y=3, -4x+2y=-6 is

infinite

unique

two

no solution

Answer is:

infinite

25) In an Operation Amplifier circuit, ratio between differential gain and common-mode gain is

PSRR

CMRR

Noise figure

Gain margin

Answer is:

CMRR

26) Which of the following circuit has a built in Hysteresis?

Filter

Timer

JK Flip Flop

Schmitt Trigger

Answer is:

Schmitt Trigger

27) The primary of a transformer is connected to a 220 V rms source and has a current of 250 mA rms. The secondary is providing 22 V rms across a 10Ohm load. What is the efficiency of the transformer?

92%

90%

88%

95%

Answer is:

88%

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

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