33) The OP-amp can amplify

a.c. signals only

d.c. signals only

both a.c. and d.c. signals

neither d.c. nor a.c. signals

Answer is:

both a.c. and d.c. signals

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

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34) What is the Q (Quality factor) of a series circuit that resonates at 10 kHz, has equal reactance of 5 kilo-ohms each, and a resistor value of 50 ohms?

400

100

150

Answer is:

100

35) When parallel resistors are of three different values, which has the greatest power loss?

The smallest resistance

The largest resistance

They have the same power loss

Voltage and resistance values are needed

Answer is:

The smallest resistance

36) The peak inverse voltage (PIV) across non-conducting diode in a bridge rectifier equals approximately

half the peak secondary voltage

twice the peak secondary voltage

the peak value of the secondary voltage

four times the peak value of the secondary voltage

Answer is:

the peak value of the secondary voltage

37) Which among the following is an incorrect characteristics of an ideal opamp?

Infinite CMRR and Slew rate

Infinite voltage gain

Infinite bandwidth

Infinite output offset voltage when input voltage is zero

Answer is:

Infinite output offset voltage when input voltage is zero

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

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33) The OP-amp can amplify

both a.c. and d.c. signals

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

34) What is the Q (Quality factor) of a series circuit that resonates at 10 kHz, has equal reactance of 5 kilo-ohms each, and a resistor value of 50 ohms?

100

35) When parallel resistors are of three different values, which has the greatest power loss?

The smallest resistance

36) The peak inverse voltage (PIV) across non-conducting diode in a bridge rectifier equals approximately

the peak value of the secondary voltage

37) Which among the following is an incorrect characteristics of an ideal opamp?

Infinite output offset voltage when input voltage is zero

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