CDS I 2022 General Knowledge Previous Year Paper (10-April-2022)

Question 1

If the magnification produced by a lens is +2, then the image is:

Accepted Answer

erect, virtual and larger than the object.

Answer

erect, virtual and smaller than the object.

Answer

inverted, real and smaller than the object.

Answer

inverted, real and larger than the object.

Question 2

What is the correct sequence of resistivity of silver, nichrome and glass at room temperature?

Accepted Answer

Silver < Nichrome < Glass

Answer

Glass < Nichrome < Silver

Answer

Silver < Glass < Nichrome

Answer

Nichrome < Silver < Glass

Question 3

At the time of short-circuit, the current in the circuit:

Accepted Answer

increases heavily.

Answer

reduces substantially.

Answer

does not change.

Answer

keeps on fluctuating.

Question 4

Which one of the following statements isnotcorrect?

Accepted Answer

A wire with a green insulation is usually the live wire of an electric supply.

Answer

An electric motor converts electrical energy into mechanical energy.

Answer

An electric generator works on the principle of electromagnetic induction.

Answer

The magnetic field at the centre of a long circular coil carrying current will be parallel straight lines.

Question 5

A boy completes one round of a circular track of diameter 200 m in 30 s. What will be the displacement at the end of 3 minutes and 45 seconds?

Accepted Answer

200 m

Answer

50 m

Answer

100 m

Answer

236 m