Units of electricity consumed by 2500 watt air-conditioner in one hour are_________...? Mcqs

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Units of electricity consumed by 2500 watt air-conditioner in one hour are_________...?

(A) 25 units
(B) 2.25 units

(C) 2.5 units
(D) 0.25 units

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Steradian is the unit of_______________...?

(A) Solid angle
(B) Liquid angle

(C) Gas angle
(D) Plain angle

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What “Enrico Fermi” invented...?

(A) X ray machine
(B) Betatron

(C) Cyclotron
(D) Nuclear reactor

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Heamodialysis is a technique to cure problem of ____...?

(A) Kidney
(B) Brain

(C) Heart
(D) Lungs

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The volume of Blood in a Human body to be approximately _________ of body weight...?

(A) 6%
(B) 7%

(C) 8%
(D) 9%

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What pigment is responsible for the red color inside a watermelon...?

(A) Chlorophyll
(B) Beta-carotene

(C) Lycopene
(D) Anthocyanin

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Which of the following is the main difference between electromagnets and bar magnets...?

(A) Electromagnets are stronger than bar magnets
(B) Bar magnets are permanent, but electromagnets are temporary

(C) Electromagnets are used in motors, but bar magnets are used in generators
(D) Electromagnets need electricity but bar magnets do not need electricity

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The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect...?

(A) Nitrogen Dioxide (NO2)
(B) Chlorofluorocarbons (CFCs)

(C) Methane (CH4)
(D) High-fructose corn syrup (HFCs)

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What are considered the building blocks of matter...?

(A) Molecules
(B) Protons

(C) Elements
(D) Atoms

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Reflecting prisms usually work on the principle of total ____...?

(A) Internal Reflection
(B) External Reflection

(C) Refraction
(D) Diffraction

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