28) What are the characteristics of an ideal operational amplifier?

Infinite output impedance, zero input impedance, infinite bandwidth

Zero output impedance, infinite input impedance, infinite bandwidth

Infinite output impedance, infinite input impedance, narrow bandwidth

Infinite output impedance, zero input impedance, narrow bandwidth

Answer is:

Zero output impedance, infinite input impedance, infinite bandwidth

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

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29) What is the ripple frequency of a full wave bridge rectifier circuit?

Same as the input AC frequency

Twice the input AC frequency

Half the input AC frequency

Four times the input AC frequency

Answer is:

Twice the input AC frequency

30) If the capacitor in a simple RC integrator becomes open due to failure, the output

Would increase exponentially

Would measure the same as the input

Would measure zero volts

None of the above

Answer is:

Would measure the same as the input

31) Area of a circle is 49xPi square centimeter. Its circumference is

14 x Pi cm

7 cm

49xPi cm

32 cm

Answer is:

14 x Pi cm

32) In class AB push-pull amplifier, crossover distortion is avoided by biasing the transistors

In cut-off region

Slightly above cut-off

Slightly below saturation

In saturation region

Answer is:

Slightly above cut-off

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

For more MCQ's Click Here

28) What are the characteristics of an ideal operational amplifier?

Zero output impedance, infinite input impedance, infinite bandwidth

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

29) What is the ripple frequency of a full wave bridge rectifier circuit?

Twice the input AC frequency

30) If the capacitor in a simple RC integrator becomes open due to failure, the output

Would measure the same as the input

31) Area of a circle is 49xPi square centimeter. Its circumference is

14 x Pi cm

32) In class AB push-pull amplifier, crossover distortion is avoided by biasing the transistors

Slightly above cut-off

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