The gases which are used by drivers as an artificial atmosphere are helium and_____________...? Mcqs

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The gases which are used by drivers as an artificial atmosphere are helium and_____________...?

(A) Nitrogen
(B) Oxygen

(C) Neon
(D) Carbon monoxide

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The observable traits of an individual are:...?

(A) Genotype
(B) Phenotype

(C) Alleles
(D) None of these

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Which of the following principleis used to produce ‘low-temperatures’ ...?

(A) Super conductivity
(B) Joule-Kelvin effect

(C) Thermo-electric effect
(D) Adiabatic demagneti-sation

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Bolometer measures: ____________...?

(A) Breadith of tree
(B) Burning capacity

(C) Heat radiation
(D) Bearing capacity

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In four kingdom classification, kingdom Metaphyta includes all of the following except...?

(A) Algae
(B) Angiosperm

(C) Gymnosperm
(D) Bryophyta

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“Beaufort Scale” is used to measure____________...?

(A) Wind Velocity
(B) Air Pressure

(C) Wind Direction
(D) Humidity

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The most abundant element in sea water is...?

(A) Chlorine
(B) Sodium

(C) Sulfur
(D) Magnesium

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The rear view mirror of a motor vehicle is ________...?

(A) Concave
(B) Plane

(C) Convex
(D) Biconcave

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Air contains volume of carbon dioxide approximately...?

(A) 3%
(B) 33%

(C) 0.3%
(D) 0.03%

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A canyon is a large form of ________...?

(A) Dry valley
(B) Gorge

(C) Pediment
(D) Badiand

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