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ISRO Technician-B
Electronic Mechanic
ISRO Technician-B Electronic Mechanic 2017
46

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

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

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

47) An instrumentation amplifier has a high

output impedance

power gain

CMRR

supply voltage

Answer is:

CMRR

48) Typical expected life time of LED lights is

750 to 2000 hrs

6000 to 10000 hrs

20000 to 50000 hrs

More than 1000000 hrs

Answer is:

20000 to 50000 hrs

49) The bandwidth of a Television channel is

5 MHz

7 MHz

9 MHz

6 MHZ

Answer is:

7 MHz

50) A conductor of 100 m length with 1 mm diameter has a resistance of 900 m Ohm. What will be the resistance of another conductor of same material with same length and 3 mm diameter?

300 m Ohm

100 m Ohm

2700 m Ohm

none of the above

Answer is:

100 m Ohm

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

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