24) Number of solutions for the system of linear equations 2x-y=3, -4x+2y=-6 is

infinite

unique

two

no solution

Answer is:

infinite

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

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25) In an Operation Amplifier circuit, ratio between differential gain and common-mode gain is

PSRR

CMRR

Noise figure

Gain margin

Answer is:

CMRR

26) Which of the following circuit has a built in Hysteresis?

Filter

Timer

JK Flip Flop

Schmitt Trigger

Answer is:

Schmitt Trigger

27) The primary of a transformer is connected to a 220 V rms source and has a current of 250 mA rms. The secondary is providing 22 V rms across a 10Ohm load. What is the efficiency of the transformer?

92%

90%

88%

95%

Answer is:

88%

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

For more MCQ's Click Here

24) Number of solutions for the system of linear equations 2x-y=3, -4x+2y=-6 is

infinite

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

25) In an Operation Amplifier circuit, ratio between differential gain and common-mode gain is

CMRR

26) Which of the following circuit has a built in Hysteresis?

Schmitt Trigger

27) The primary of a transformer is connected to a 220 V rms source and has a current of 250 mA rms. The secondary is providing 22 V rms across a 10Ohm load. What is the efficiency of the transformer?

88%

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