1000+ TNPSC Group 4 Question Paper with Answers 2022 - 2

Question: 6

Intelsat satellite works as a

(A) Absorber

(B) Repeater

(C) Transmitter

(D) None of these

Question: 7

Modem is a device used for

(A) Converting analog signals to digital signals

(B) Modulating signals

(C) Either of the above

(D) None of the above

Question: 8

The electrical circuits used to get smooth dc output from a rectified circuit is called

(A) Amplifier

(B) Filter

(C) Oscillator

(D) Full wave rectifier

Question: 9

The resistance of an ideal ammeter is

(A) Infinite

(B) Zero

(C) Very low

(D) Very high

Question: 10

When magnet is heated, it

(A) Gains magnetism up to certain temperature

(B) Loses its magnetism

(C) Gains magnetism

(D) None of the above