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ISRO Technician-B
Electronic Mechanic
ISRO Technician-B Electronic Mechanic 2017
40

ISRO Technician-B Electronic Mechanic Question Paper - 2017 (Set - 1) with Answer Key

40) In a C-E configuration, an emitter resistor is used for

Stabilization

ac signal bypass

collector bias

higher gain

Answer is:

Stabilization

ISRO Technician-B Electronic Mechanic Question Paper - 2017 (Set - 1) with Answer Key

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Related ISRO Technician-B Electronic Mechanic Question Paper - 2017 (Set - 1) with Answer Key

41) How many storage locations are available when a mercury device has twelve address lines?

144

512

2048

4096

Answer is:

4096

42) The logic family with the lowest power dissipation is

TTL

DTL

CMOS

ECL

Answer is:

CMOS

43) When 30V is applied to four series resistors, 60 microAmps flows. If R1=42 k Ohm, R2=47 k Ohm, and R3=56 k Ohm, what is the value of R4?

35 k Ohm

3.55 k Ohm

355 k Ohm

500 k Ohm

Answer is:

355 k Ohm

44) In a class B push-pull amplifier, the transistors are biased slightly above cutoff

to avoid crossover distortion

to get unusually high efficiency

to provide negative feedback

to get a low input impedance

Answer is:

to avoid crossover distortion

ISRO Technician-B Electronic Mechanic Question Paper - 2017 (Set - 1) with Answer Key

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