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 .
It takes much longer to cook food in the hills than in the plains, because
A)
in the hills the atmospheric pressure is lower than that in the plains and therefore water boils at a temperature lower than 100oC causing an increase in cooking time
B)
due to low atmospheric pressure on the hills, the water boils at a temperature higher than 100oC and therefore water takes longer to boil
C)
in the hills the atmospheric density is low and therefore a lot of heat is lost to the atmosphere
D)
in the hills the humidity is high and therefore a lot of heat is absorbed by the atmosphere leaving very little heat for cooking

Correct Answer :  

Published On : July 3, 2020
2 .
One thousand microns is equal to
A)
10-3m
B)
10-6m
C)
10-9m
D)
10-12m

Correct Answer :  

Published On : July 3, 2020
3 .
Stars twinkle because
A)
the intensity of light emitted by them changes with time
B)
the distance of the stars from the earth changes with time
C)
the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time
D)
the light from the star is scattered by the dust particles and air molecules in the earth's atmosphere

Correct Answer :  

Published On : July 3, 2020
4 .
Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?
A)
Water, iron and air
B)
Iron, air and water
C)
Air, water and iron
D)
Iron, water and air

Correct Answer :   Air, water and iron

Published On : July 3, 2020
5 .
Suitable impurities are added to a semiconductor depending on its use. This is done in order to
A)
increase its life
B)
enable it to withstand higher voltages
C)
increase its electrical conductivity
D)
increase its electrical resistivity

Correct Answer :   increase its electrical conductivity

Published On : July 3, 2020
6 .
Inside an aeroplane, flying at a high altitude,
A)
the pressure is the same as that outside
B)
normal atmospheric pressure is maintained by the use of air pumps
C)
the pressure inside is less than the pressure outside
D)
normal humidity and partial vacuum are maintained

Correct Answer :   normal atmospheric pressure is maintained by the use of air pumps

Published On : July 3, 2020
7 .
On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because
A)
mercury is a metal
B)
density of mercury is greater than that of water
C)
cohesion of mercury is greater than its adhesion with glass
D)
cohesion of water is greater than its adhesion with glass

Correct Answer :   cohesion of mercury is greater than its adhesion with glass

Published On : July 3, 2020
8 .
Sound of frequency below 20 Hz is called
A)
audio sounds
B)
infrasonic
C)
ultrasonic
D)
supersonics

Correct Answer :   infrasonic

Published On : July 3, 2020
9 .
Of the four locations mentioned below the highest inside temperature will be attained in the pressure cooker operated with the pressure valve open
A)
at sea level
B)
at the top of Mt. Everest
C)
at a place in a valley below sea level
D)
in an aeroplane flying at a height of 10,000 m with inside pressure maintained at the sea level

Correct Answer :   at a place in a valley below sea level

Published On : July 3, 2020
10 .
RADAR is used for
A)
locating submerged submarines
B)
receiving a signals in a radio receiver
C)
locating geostationary satellites
D)
detecting and locating the position of objects such as aeroplanes

Correct Answer :   detecting and locating the position of objects such as aeroplanes

Published On : July 3, 2020
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