18) Which transistor configuration is most commonly used as a Voltage Buffer

Common Base

Common Collector

Common Emitter

All of the above

Answer is:

Common Collector

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

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19) One of the angle of parallelogram is 72 degree. Its adjacent angle is

18 degree

72 Degree

108 degree

162 degree

Answer is:

108 degree

20) For a Wien Bridge oscillator the voltage gain should be

Greater than or equal to 3

Lesserthan 1

01-Feb

Answer is:

Greater than or equal to 3

21) A transformer is connected to a fixed ac voltage at the primary and a fixed load resistor at the secondary. What is the effect of decreasing the number of turns in the secondary winding?

Increase the secondary current

Decrease the secondary current

Have no effect on the secondary current

Increase the primary current

Answer is:

Decrease the secondary current

22) What are the circuit modules contained in a Phased locked loop circuit?

High Pass filter, comparator and VCO

Phase comparator, bandpass filter and VCO

Low Pass filter, phase comparator and demodulator

Phase comparator, low-pass filter and VCO

Answer is:

Phase comparator, low-pass filter and VCO

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

For more MCQ's Click Here

18) Which transistor configuration is most commonly used as a Voltage Buffer

Common Collector

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

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

19) One of the angle of parallelogram is 72 degree. Its adjacent angle is

108 degree

20) For a Wien Bridge oscillator the voltage gain should be

Greater than or equal to 3

21) A transformer is connected to a fixed ac voltage at the primary and a fixed load resistor at the secondary. What is the effect of decreasing the number of turns in the secondary winding?

Decrease the secondary current

22) What are the circuit modules contained in a Phased locked loop circuit?

Phase comparator, low-pass filter and VCO

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