Which part of a D.C motor reverses the direction of current through the coil every half-cycle...? Mcqs

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Which part of a D.C motor reverses the direction of current through the coil every half-cycle...?

(A) The armature
(B) The commutator

(C) The brushes
(D) The slip rings

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Thanatology is the study of _________...?

(A) Careers
(B) Being

(C) Death
(D) Soul

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The Distance of Neptune From Sun is ________ astronomical unit....?

(A) 28
(B) 30

(C) 32
(D) None of these

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The sky drivers use parachutes to easily descend towards the earth because of it:...?

(A) Increases air resistance
(B) Decreases air resistance

(C) Decreases air friction
(D) Speeds up

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Garnet is a______________...?

(A) Sedimentary rock
(B) Igneous rock

(C) Mineral
(D) None of these

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What is the date when day and night are equal...?

(A) March 21 and December 24
(B) January 14 and September 23

(C) March 20 and September 23
(D) January 14 and June 22

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Which of the following female mosquito is the cause of Dengue fever...?

(A) Aedes Aegypteis
(B) Anophilies

(C) Barinohils
(D) N.O.A

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Most seeds germinate between the temperature...?

(A) 10°C to 15°C
(B) 16°C to 24°C

(C) 25°C to 30°C
(D) 31°C to 35°C

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A wind which reverses seasonally is known as_____...?

(A) Trade
(B) Cyclonic

(C) Monsoon
(D) Polar

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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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