General Knowledge(GK) (or) General Awareness

Welcome to the General Knowledge Section of Free Time Learning. As we are aware General Knowledge (GK) is a very important area in all the competitive exams held in the country. Nowadays, a good knowledge of general awareness is very important in clearing any competitive and government recruitment examinations.

These General Knowledge Question are very important and usefull to UPSC, IAS/PCS, UPPSC, IBPS, SBI, RBI, SSC, CGL, Railway, APPSC, TSPSC, KPSC, TNPSC, TPSC, UPPSC, MPSC, RPSC, BPSC, MPPSC, UKPSC, MPSC, and other competitive exams.

1 .

Optical fibre works on the

A)

principle of refraction

B)

total internal reflection

C)

scattering

D)

interference

Correct Answer : total internal reflection

Published On : July 3, 2020

2 .

Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2

A)

0.14 m/s

B)

140 m/s

C)

1.4 km/s

D)

14 m/s

Correct Answer : 14 m/s

Published On : July 3, 2020

3 .

Mercury is commonly used as a thermometric fluid rather than water because

A)

specific heat of mercury is less than water

B)

specific heat of mercury is more than water

C)

mercury has greater visibility than water

D)

density of mercury is more than the water

Correct Answer : mercury has greater visibility than water

Published On : July 3, 2020

4 .

It is more difficult to walk on a sandy road than on a concrete road because

A)

sand is soft and concreter is hard

B)

the friction between sand and feet is less than that between concrete and feet

C)

the friction between sand and feet is more than that between concrete and feet

D)

the sand is grainy but concrete is smooth

Correct Answer : the friction between sand and feet is less than that between concrete and feet

Published On : July 3, 2020

5 .

Out of the following pairs, which one does not have identical dimension?

A)

Moment of inertia and moment of a force

B)

Work and Torque

C)

Angular momentum and Planck's constant

D)

Impulse and Momentum

Correct Answer : Moment of inertia and moment of a force

Published On : July 3, 2020

6 .

Magnetism at the centre of a bar magnet is

A)

minimum

B)

maximum

C)

zero

D)

minimum or maximum

Correct Answer : zero

Published On : July 3, 2020

7 .

Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit

A)

X-rays

B)

ultraviolet light

C)

visible light

D)

radio waves

Correct Answer : visible light

Published On : July 3, 2020

8 .

Sound waves in air are

A)

transverse

B)

longitudinal

C)

electromagnetic

D)

polarised

Correct Answer : longitudinal

Published On : July 3, 2020

9 .

Radio telescopes are better than optical telescopes because

A)

they can detect faint galaxies which no optical telescope can

B)

they can work even in cloudy conditions

C)

they can work during the day and night

D)

All of the above

Correct Answer : All of the above

Published On : July 3, 2020

10 .

out of the following, which is not emitted by radioactive substance?

A)

Electrons

B)

Electromagnetic radiations

C)

Alpha particles

D)

Neutrons

Correct Answer : Neutrons

Published On : July 3, 2020

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