Licchavi Lyceum


Licchavi Lyceum

Science Practice Questions for State PSC Exams

#1. What is the speed of Light in vacuum?

Speed of Light remains same in Vacuum.

#2. Which of the following is not a raw-material for fertilizer industry?

Ans: (D)

Solution: Factual Question

#3. Non-metallic mineral is

Ans: (A)

Solution: Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite. It is not metallic.


#4. There are how many pairs of cranial nerves in human?

Ans: (B)

Solution: There are 12 pairs of cranial nerves in humans.

#5. The pyramid of energy in any ecosystem is

Ans: (A)

Solution: The pyramid of energy, however, is always upright.

Ecological Pyramid: Common parameters used for constructing ecological pyramids are the number of individuals (pyramid of numbers), dry weight (pyramid of biomass) or rate of energy flow (pyramid of energy) at successive trophic levels.

#6. Monosodium glutamate (MSG) in food is used as

Ans: (B)

Solution: Monosodium glutamate (MSG) is a flavor enhancer commonly added to Chinese food, canned vegetables, soups and processed meats.

#7. Which of the following disease is related to Corona virus?

Ans: (D)

Solution: All are related to Corona Virus.

#8. Which is not a type of secondary memory?

Ans: (C)

Solution: RAM is a primary Memory.

#9. What is XML stands for?

Ans: (B)

Solution: XML stands for extensible markup language. A markup language is a set of codes, or tags, that describes the text in a digital document. The most famous markup language is hypertext markup language (HTML), which is used to format Web pages.

#10. Microwaves are electromagnetic waves having frequencies in range of

Ans: (C)

Solution: Audible Range: 20 Hz to 20 KHz.
Ultra Sound: 20 KHz to 200 MHz.
Infra Sound: Less than 20 Hz.

Microwave frequencies range between 1 GHz to 1000 GHz.


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