1) The electrolyte used in Nickel-Cadmium rechargable cell is

Zinc chloride

Aqueous solution of potassium hydroxide

Mercuric oxide

Nickel hydroixde

Answer is:

Aqueous solution of potassium hydroxide

Explanation:

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

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2) The maximum safe working voltage for a series combination of two capacitors of rating 2 microFarad/10V and 4 microFarad/20V is

15 V

18 V

20 V

10 V

Answer is:

15 V

3) A series RLC circuit is connected to the 240V, 50Hz line. If R=10 ohms, L=20 mH and C=20 microFarade, then the resulting reactance of the circuit is approximately

-152.72 ohm

165.28 ohm

175.72 ohm

-142.72 ohm

Answer is:

-152.72 ohm

4) Hysteresis loss in a transformer is caused by

Induced voltage in the core due to changing magnetic field

Variation in input frequency

Energy consumed in reversing the magnetism of iron core

Fluctuation in load current

Answer is:

Energy consumed in reversing the magnetism of iron core

5) Two inductors of 32mH and 8mH are placed parallel to each other on a common core and are connected in series aiding. If the mutual inductance is 2 mH, the coefficient of coupling is

0.125

0.049

0.25

0.05

Answer is:

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

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1) The electrolyte used in Nickel-Cadmium rechargable cell is

Aqueous solution of potassium hydroxide

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

2) The maximum safe working voltage for a series combination of two capacitors of rating 2 microFarad/10V and 4 microFarad/20V is

15 V

3) A series RLC circuit is connected to the 240V, 50Hz line. If R=10 ohms, L=20 mH and C=20 microFarade, then the resulting reactance of the circuit is approximately

-152.72 ohm

4) Hysteresis loss in a transformer is caused by

Energy consumed in reversing the magnetism of iron core

5) Two inductors of 32mH and 8mH are placed parallel to each other on a common core and are connected in series aiding. If the mutual inductance is 2 mH, the coefficient of coupling is

0.125

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