If the material recovers the original dimensions, when an external force is removed, this deformation is known as ______ deformation....? Mcqs

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If the material recovers the original dimensions, when an external force is removed, this deformation is known as ______ deformation....?

(A) Inelastic
(B) Permanent

(C) Elastic
(D) Irreversible

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A movable pulley can _______...?

(A) Increase the input force
(B) Decrease the input force

(C) Change the direction of force
(D) Change the speed of force

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Rainbow is the best example of _____...?

(A) Refraction of light
(B) Dispersion of light

(C) Spectrum of white light
(D) Reflection of light

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Vertebrates animals that take on the temperature of their surrounding are called...?

(A) Cold-blooded
(B) Warm-blooded

(C) Both A and B
(D) None

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The ISS (International Space Station) orbits Earth about once every...?

(A) 60 minutes at an altitude of about 400 km
(B) 60 minutes at an altitude of about 500 km

(C) 90 minutes at an altitude of about 400 km
(D) 90 minutes at an altitude of about 500 km

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According to many, including the Guinness Book of World Record,________is the world’s rarest mineral...?

(A) Painite
(B) Benitoite

(C) Jadeite
(D) Taaffeite

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Which of the following is called as Blue planet...?

(A) Mercury
(B) Earth

(C) Venus
(D) Neptune

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For the generation of biogas, the materials commonly used are__________...?

(A) Animal wastes
(B) Forest residues

(C) Aquatic plants
(D) None of these

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Coldest point in atmosphere is...?

(A) Tropopause
(B) Mesopause

(C) Exopause
(D) None of these

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A balanced diet quality formula recommended by World Health Organization is ____________....?

(A) Carbohydrates 58% + Proteins 12% + Fats 30%
(B) Mineral+Proteins+Fats

(C) Fats+Proteins+Minerals
(D) None of these

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