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Everyday Science 2141 MCQs [All-Courses]

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Prepare effectively with our Everyday Science MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Physics, Chemistry, Biology, Environment, Human Body, Inventions, Scientific Laws, and daily-life science concepts.
Strengthen your scientific understanding, improve MCQS accuracy, and boost your exam performance with well-structured and updated topics.

All Topics  2141

How many layers does sun have ?

A 6
B 4
C 7
D 3
Correct Answer: 6

Nearest star to sun is: __________?

A Proxima Centurai
B Alpha Scorpii
C Beta Orionis
D Vega
Correct Answer: Proxima Centurai

What would happen to the escape velocity if the mass of the Earth were doubled, keeping the radius the same?

A It would remain the same
B It would increase by a factor of 2sqrt{2}2​
C It would double
D It would decrease by a factor of 2sqrt{2}2
Correct Answer: It would decrease by a factor of 2sqrt{2}2

Pure limestone is called _______?

A Aluminum Oxide
B Calcium Carbonate
C Calcium Sulphate
D None of these
Correct Answer: Calcium Carbonate

For an object to escape from the surface of a celestial body, the kinetic energy of the object must be: __________?

A Less than the gravitational potential energy of the body
B Equal to the gravitational potential energy of the body
C Greater than the gravitational potential energy of the body
D None of the above
Correct Answer: Greater than the gravitational potential energy of the body

A bird sitting on a high tension electric wire does not get electrocuted because:

A Sit has high resistance
B the body is earthed
C it does not form a closed path for the flow of current
D its feet are good insulators
Correct Answer: it does not form a closed path for the flow of current

Which of the following statements is true about escape velocity?

A Escape velocity is independent of the mass of the planet
B Escape velocity is independent of the mass of the escaping object
C Escape velocity decreases with an increase in the radius of the planet
D Escape velocity depends on the shape of the planet
Correct Answer: Escape velocity is independent of the mass of the escaping object

The color which we see when our eyes are closed?

A Black
B Grey
C Eigengrau
D None of these
Correct Answer: Eigengrau

On the Moon, the escape velocity is: __________?

A Less than on Earth due to its lower mass and smaller radius
B More than on Earth due to its smaller radius
C The same as on Earth because escape velocity is a constant
D Dependent on the time of day
Correct Answer: Less than on Earth due to its lower mass and smaller radius

Which metal pollute the air of a big city?

A Copper
B Chromium
C Lead
D Cadmium
Correct Answer: Lead
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