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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 .
What color does yellow and green make?
A)
Ocean mist
B)
Tangerine
C)
Lime
D)
Maroon

Correct Answer :   Lime

Yellow and green color mix make a Lime color.

The three primary colors in additive mixing are red, green, and blue. In the absence of color or, when no colors are showing, the result is black. If all three primary colors are showing, the result is white. When red and green combine, the result is yellow. When red and blue combine, the result is magenta. When blue and green combine, the result is cyan.

Published On : June 14, 2021
2 .
What does airbag, used for safety of car driver, contain?
A)
Sodium peroxide
B)
Sodium nitrite
C)
Sodium bicarbonate
D)
Sodium azide

Correct Answer :   Sodium azide

Sodium azide is used in airbag, used for safety of car driver. Under room temperature, sodium azide is a stable compound. However, when heated by an impulse it disintegrates to produce sodium and nitrogen.

Published On : June 14, 2021
3 .
The radioactive element most commonly detected in humans is
A)
cobalt-60
B)
plutonium-238
C)
potassium-40
D)
iodine-131

Correct Answer :   potassium-40

Published On : June 14, 2021
4 .
The theory which advocates that living beings can arise only from other living beings is termed
A)
Catastrophism
B)
Bio-genesis
C)
Cosmozoic
D)
Abiogenesis

Correct Answer :   Bio-genesis

Published On : June 14, 2021
5 .
The uranium fuel used worldwide is mainly in the form of
A)
UO2
B)
UF6
C)
U3O8
D)
U metal

Correct Answer :   UO2

"Uranium dioxide or uranium (IV) oxide", has another name which is "Urania or uranous oxide", a form of oxide of uranium and black in colour, radioactive by nature, the crystalline form of uranium dioxide is called uraninite.
 
This particular form of uranium is basically used as radioactive fuel around the world to generate power from nuclear energy. Along with uranium dioxide, plutonium is also added together they form the MOX fuel.

Published On : June 14, 2021
6 .
For Galvanizing Iron which of the following Metals is used?
A)
Lead
B)
Copper
C)
Zinc
D)
Aluminium

Correct Answer :   Zinc

The process of applying a coating of zinc (Zn) on iron or steel to protect it from rusting is called galvanising or galvanizing iron.

Zinc is also called sacrificial anode. The process is called cathodic protection. If zinc is scratched or corroded, it will continue to protect the iron from oxidation electrochemically. Tin also protects iron from rusting. But when it is worn away, it accelerates rusting instead of protecting it.

Published On : June 14, 2021
7 .
Wireless transmission can be done via
A)
Radio waves
B)
Infrared waves
C)
Microwaves
D)
All of the above

Correct Answer :   All of the above

Wireless transmission can be done via any of the Infrared waves, Radio waves or Microwaves.

Published On : June 14, 2021
8 .
What is the first step in the refining of petroleum?
A)
Cracking
B)
Drilling
C)
Cooling
D)
Distillation

Correct Answer :   Distillation

The very first step in the refining of petroleum oil is Fractional distillation i.e, the fractionation of crude oil in atmospheric vacuum distillation towers. 
 
The first process in a petroleum refinery is known as distillation. In this process, crude oil is heated and filled into a distillation column.

Published On : June 14, 2021
9 .
One fathom is equal to how many meters?
A)
1.7699
B)
1.8288
C)
2.0210
D)
2.1212

Correct Answer :   1.8288

One fathom = 1.8288 meters = 6 feet

A fathom is a unit of length used especially for measuring the depth of water.

Published On : June 14, 2021
10 .
Heat transfer horizontally within the atmosphere is called
A)
Advection
B)
Absorption
C)
Convection
D)
Conduction

Correct Answer :   Advection

Convection transfers heat vertically into the atmosphere. In order for heat to be transferred to other regions, it must be transferred horizontally by the wind. The horizontal transfer of heat by the wind is called advection. Advection is a transport mechanism of a substance or conserved property by a fluid due to the fluid’s bulk motion. An example of advection is the transport of pollutants or silt in a river by bulk water flow downstream.

Published On : June 14, 2021