A moderator is used in nuclear reactor in order to ...? Mcqs

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A moderator is used in nuclear reactor in order to ...?

(A) Accelerate the neutrons
(B) Slow down the speed of the neutrons

(C) Increase the number of elections
(D) Decrease the number of electrons

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The blueness of the sky is mainly due to _____________...?

(A) The scattering of sunlight by air molecules
(B) The presence of water vapor

(C) Absorption of blue light by the air
(D) Emission of blue light by the atmosphere

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Which of the following source of energy is caused by uneven heating of earth’s surface...?

(A) Wind
(B) Solar

(C) Biomass
(D) None of these

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Which one of the following is applicable to the planet ‘Venus’...?

(A) Smallest
(B) Brightest

(C) Most dense
(D) Largest

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Which of the following is the correct way of writing a scientific name of an organism...?

(A) Houbara bustard
(B) E.coli

(C) Alium Cepa
(D) Canis lupis

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Carnivores that eat only...?

(A) Animals
(B) Plants

(C) Both A and B
(D) None

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If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will...?

(A) Increase over 10%
(B) Decrease by 10%

(C) Decrease by 0.5%
(D) Increase by 0.5%

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What does Angstrom measure...?

(A) Quantity
(B) Speed

(C) Length
(D) None of these

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Which one of the following decreases along the period...?

(A) Ionization Energy
(B) Atomic Radius

(C) Electronegativity
(D) Electron Affinity

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Anti Diuretic hormone (ADH) also known as Vasopressin, Arginine Vasopressin and agripressin. Is secreted by_________ ...?

(A) Pituitary
(B) Pancreas

(C) Thyroid
(D) Parathyroid

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