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 .

In cataract which part of the eye is affected

Cornea

Retina

Iris

Lens

Correct Answer : Lens

A cataract is a dense, cloudy area that forms in the lens of the eye. A cataract begins when proteins in the eye form clumps that prevent the lens from sending clear images to the retina. The retina works by converting the light that comes through the lens into signals.

Published On : June 11, 2021

2 .

Who invented chloroform as anaesthetic

James Simpson

Christian Barnard

Alexander Fleming

Edward Jenner

Correct Answer : James Simpson

It is widely accepted that Sir James Young Simpson discovered the anaesthetic properties of chloroform and pioneered its application in surgery and midwifery. The name of Simpson is not infrequently also associated with the discovery of chloroform and of anaesthesia.

Published On : June 11, 2021

3 .

Which one of the following is a renewable source of energy

Nuclear energy

Solar energy

Petrol

Coal

Correct Answer : Solar energy

Renewable resources include solar energy, wind, falling water, the heat of the earth (geothermal), plant materials (biomass), waves, ocean currents, temperature differences in the oceans and the energy of the tides.

Published On : June 11, 2021

4 .

Which material is used in electric heater

Iron

Brass

Tungsten

Nichrome

Correct Answer : Nichrome

Nichrome: Most resistance wire heating elements usually use nichrome 80/20 (80% Nickel, 20% Chromium) wire, ribbon, or strip. Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time.

Published On : June 11, 2021

5 .

The metal ion present in vitamin B₁₂ is

Nickel

Zinc

Cobalt

Iron

Correct Answer : Cobalt

Vitamin B₁₂ is also referred to as cobalamin, because it contains a metal ion (cobalt). This makes it the largest and most complex vitamin of all.

Published On : June 11, 2021

6 .

Hormone Gastrin acts as

Water and Salt secretion

Causes contraction of gall bladder

Stimulates HCI production

Stimulate urine elimination

Correct Answer : Stimulates HCI production

Published On : June 11, 2021

7 .

Which is the most reactive metal

Potassium

Calcium

Sodium

Iron

Correct Answer : Potassium

Published On : June 11, 2021

8 .

Laser is a device for producing

Dispersed radiation

Stimulated radiation

Scattered radiation

Spontaneous radiation

Correct Answer : Stimulated radiation

Laser is a device for producing stimulated radiation. LASER stands for light amplification by stimulated emission of (electromagnetic) radiation.

Published On : June 11, 2021

9 .

Pendulum clocks become slow in summer because

Of the friction in the coil

Days in summer are large

The weight of the pendulum changes

The length of the pendulum increases

Correct Answer : The length of the pendulum increases

During summer, length of pendulum increases due to which the time period T increases and pendulum takes more time to complete one oscillation. Thus it becomes slow in summer.

Published On : June 11, 2021

10 .

Which one of the following types of glasses can cut-off ultraviolet rays

Jena glass

Crookes glass

Pyrex glass

Soda glass

Correct Answer : Crookes glass

Types of glass that can cut off ultraviolet rays are Crookes glass.

Published On : June 11, 2021