AEES 2022 PRT
EVS Previous Year Paper
with Solution Part 5
Ques 41 The wires holding the filament in an electric bulb is only marginally hot while the filament itself is red hot because
(a) Resistance of the wires is very less
(b) Resistance of the wires is very high
(c) Current flowing through the wires is very less compared to that flowing through the filament
(d) Curent flowing through the wires is very high compared to that flowing through the filament
Ans- (b) Resistance of the wires is very high
Ques 42 Radio isotopes have application in the area of
(a) Agriculture
(b) Medicine
(c) Industry
(d) All of these
Ans- (d) All of these
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Ques 43 What is the source of energy for an artifical satellite
(a) Wind
(b) Hydro
(c) Solar
(d) Kinetic
Ans- (c) Solar
Ques 44 Diamond is the purest form of
(a) Sulphur
(b) Glass
(c) Crystalline Carbon
(d) Aluminum
Ans- (c) Crystalline Carbon
Ques 45 The pitch of the whistle of a fast moving train decreases as it recedes away. This effect is known as?
(a) Magnus effect
(b) Doppler effect
(c) Peltier effect
(d) Seebeck effect
Ans- (b) Doppler effect
Ques 46 The image formed by a mirror is virtual, erect and the size diminished whatever be the position of the object. The mirror is?
(a) Convex
(b) Concave
(c) Either convex or concave
(d) None of these
Ans- (a) Convex
Ques 47 Light travels fastest in
(a) Solid
(b) Liquid
(c) Gas
(d) Vacuum
Ans- (d) Vacuum
Ques 48 The science of weights and measures is called:
(a) metrology
(b) meteorology
(c) mineralogy
(d) morphology
Ans- (a) metrology
Ques 49 Which of the following materials is used along with iron ore and limestone to produce iron in a modern blast furnance?
(a) coke
(b) cementite
(c) coal
(d) bauxite
Ans- (a) coke
Ques 50 Steel is composed of a number of elements. The two essential elements are iron and
(a) aluminum
(b) carbon
(c) nickel
(d) silicon
Ans- (c) nickel