Science MCQs

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These science multiple-choice questions cover a diverse range of topics, from basic physics and chemistry to biology and astronomy. They are carefully crafted to challenge the knowledge and reasoning skills of individuals preparing for various job assessments, particularly those in the BPS 5 to 15 scale range, as well as students pursuing scientific studies. Covering fundamental concepts such as the properties of matter, the human body, and the principles of light and sound, these questions provide a comprehensive assessment of scientific knowledge and problem-solving abilities. With a focus on both theoretical understanding and practical applications, these questions serve as an excellent resource for individuals seeking to enhance their understanding of the natural world and excel in their scientific endeavors.




Science MCQs

Most repeated MCQs

For IBA BPS 5 to 15 Scale 


1. Which is the outermost planet in the solar system?

A. Mercury

B. Pluto

C. Neptune

D. Uranus


2. Severe deficiency of Vitamin D results in

A. scurvy

B. rickets

C. night blindness

D. osteocalcin



3. Milk contains water

A. 70%

B.75%

C. 80%

D. 90%


4. The Sl unit of charge is

A. Ampere

B. Coulomnb

C. Ohm

D. .Volt


5. Very High Frequency (VHF) have ---------wavelengths?

A. shorter

B. shortest

C. longer

D. longest


6. Long-sight defect could be corrected by using ----------lens?


A. concave

B. Convex

C. diverging

D. none of these


7. Deficiency of Vitamin-A results in .

A. Night blindness

B. rickets

C. scurvy

D. hair fall


8. For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will.

A. also decrease

B. increase

C. remains constant

D. none of these


9. The lifespan of Red Blood Cells is days?

A. 60

B. 120

C.180

D: 240


10. The density of water is

A. 1g/cm3

B. 1.5 g/cm3

C. 2 g/cm3

D. none of these


11. Radioactivity was discovered by.?

A. Kelvin

B. Thomson

C. Rutherford

D. Becquerel


12. A device which converts chemical energy into electrical energy is called

A. motor

B. generator

C. moving-coil meter

D. battery


13. The Sun is a.

A. Star

B. Planet

C. Asteroid

D. Meteoroid


14. The gas used in a refrigerator to cool water is?


A. Nitrogen

B. Carbon dioxide

C. Methane

D.Ammonia


15. The average adult has a blood volume of about liters.

A.4

B.5

C. 6

D. 7


16. The most abundant element in the universe is

A. Oxygen

B. Hydrogen

C. Carbon Dioxide

D. Silicon


17. The Most abundant element in the Earth's crust is

A. Oxygen

B. Hydrogen

C. Carbon Dioxide

D. Silicon


18. Each day human body breathe in ------liters of air.

A. 5,000 to 10,000

B. 10,000 to 15,000

C. 15,000 to 20,000

D. 20,000 to 25,000


19. Deficiency of Vitamin-D results in.

A. night blindness

B. rickets

D. hairfal

C. scurvy


20. The SI unit of "pressure" is.

A.pascal

B. joule

C. tesla

D. henry


21. The most densest substance on the Earth is

A. Platinum

B. Copper

C. Steel

D. Osmium


22. A camera uses a ---------to form an image.

A. convex lens

B. concave lens

C. condenser lens

D. none of these


23. Which from the following is NOT a conductor?

A. Aluminum

B. Gold

C. Graphite

D. All are conductors


24. CNG stands for?

A. Converted Natural Gas

B. Conduced Natural Gas

C. Conducted Natural Gas

D. Compressed Natural Gas


25. Which from the following is true for "Sound"?

A. Sound cannot travel through a vacuum

B. Sound cannot travel through gases

C. Sound cannot travel through liquids

D. Sound cannot travel through solids


26. When white light is passed through a prism, it  splits into.colures.


A. .5

B.6 

C.7

D. 8


27. 1 nanometer =?

A. 103 meter

B. 106 meter

C. 109 meter

D. 10-12 meter


28. Instrument used for measuring very high temperature is .


A. Pyro scope

B. Pyrometer

C. Seismograph

D. Xylomata



29. Sound waves are

waves.

A. Transverse

B. Electromagnetic

C. Longitudinal

D. none of these


30. The lifespan of White Blood Cells is

day(s)?

A. 1-5 days

B. 3-7 days

C. 4-8 days

D.5-21 days


31. The fluid part of blood is known as.

A. plasma

B. platelets

C. blood cells

D. None of these

32. During winter in cold countries, the.

mixed to melt the ice on the icy roads.

is


A. Salt

B. Chlorine

C. Carbon dioxide

D. Water


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