42) The logic family with the lowest power dissipation is

TTL

DTL

CMOS

ECL

Answer is:

CMOS

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

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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

45) There are not transients in pure resistive circuits because they

offer high resistance

obey Ohm's law

have no stored energy

are linear circuits

Answer is:

have no stored energy

46) Which of the following transistor amplifier configuration is used as a buffer for impedance matching

Common-emitter configuration

Common-base configuration

Common-collector configuration

none of the above

Answer is:

Common-collector configuration

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

For more MCQ's Click Here

42) The logic family with the lowest power dissipation is

CMOS

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

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

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?

355 k Ohm

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

to avoid crossover distortion

45) There are not transients in pure resistive circuits because they

have no stored energy

46) Which of the following transistor amplifier configuration is used as a buffer for impedance matching

Common-collector configuration

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