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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 .
Trypsin is present in which of the following?
A)
Pancreatic juice
B)
Gastric juice
C)
Bile juice
D)
Saliva

Correct Answer : Option (A) - Pancreatic juice

Published On : June 9, 2021
2 .
Which of the following is indicated by the colour of a star ?
A)
distance
B)
weight
C)
temperature
D)
size

Correct Answer : Option (C) - temperature

The color of a star mostly indicates a star's temperature, and it can also suggest the star's age. Class O stars, which are blue in color, are the hottest, and class M stars, which are red in color, are the coldest.

Published On : June 9, 2021
3 .
The outermost layer of the earth's atmosphere is_______
A)
troposphere
B)
mesosphere
C)
stratosphere
D)
exosphere

Correct Answer : Option (D) - exosphere

Published On : June 9, 2021
4 .
What is the name of the most ancient spiral galaxy that existed 11 billion years ago?
A)
A1689 B10
B)
A1689 B11
C)
A1689 B15
D)
A1689 B20

Correct Answer : Option (B) - A1689 B11

Scientists have discovered the most ancient spiral galaxy in the universe that existed 11 billion years ago and could provide insights into the early cosmos. The galaxy, known as A1689B11, existed just 2.6 billion years after the Big Bang, when the universe was only one fifth of its present age.

Published On : June 9, 2021
5 .
Which of the following is destroying the ozone layer in Stratosphere
A)
CFC
B)
Oxygen
C)
Methane
D)
Carbon Dioxide

Correct Answer : Option (A) - CFC

Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere (see details below). ... CFCs and halons cause chemical reactions that break down ozone molecules, reducing ozone's ultraviolet radiation-absorbing capacity.

Published On : June 9, 2021
6 .
Who discovered bacteria
A)
Fleming
B)
Leeuwenhoek
C)
Lamble
D)
Temin

Correct Answer : Option (B) - Leeuwenhoek

Two men are credited today with the discovery of microorganisms using primitive microscopes: Robert Hooke who described the fruiting structures of molds in 1665 and Antoni van Leeuwenhoek who is credited with the discovery of bacteria in 1676.

Published On : June 9, 2021
7 .
Biochemical oxygen demand (BOD) determines the health of
A)
Soil
B)
Air
C)
Water
D)
All of the above

Correct Answer : Option (C) - Water

Biochemical oxygen demand (BOD) represents the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic (oxygen is present) conditions at a specified temperature. ... The decay of organic matter in water is measured as biochemical or chemical oxygen demand.

Published On : June 9, 2021
8 .
Which of the following elements was first produced artificially
A)
Francium
B)
Technetium
C)
Plutonium
D)
Neptunium

Correct Answer : Option (B) - Technetium

Technetium. The first element that was synthesised, rather than being discovered in nature, was technetium in 1937. This discovery filled a gap in the periodic table, and the fact that no stable isotopes of technetium exist explains its natural absence on Earth (and the gap).

Published On : June 9, 2021
9 .
A photoelectric cell converts
A)
Electrical energy into heat energy
B)
Electrical energy into light energy
C)
Light energy into sound energy
D)
Light energy into electrical energy

Correct Answer : Option (D) - Light energy into electrical energy

Published On : June 9, 2021
10 .
The pH value of water used for a boiler should be nearly
A)
7.0
B)
8.5
C)
10.8
D)
16.7

Correct Answer : Option (B) - 8.5

Published On : June 9, 2021