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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The solubility of a solute substance increases _____...?

(A) As the liquid cools down
(B) As the liquid becomes more concentrated

(C) As the liquid heats up
(D) As the liquid becomes more diluted

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Which one is not a renewable energy sources...?

(A) Oil and gas
(B) Solar energy

(C) Nuclear fuel
(D) Wind energy

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Age of the lion is determined through...?

(A) Nose Colour
(B) Length of the tail

(C) Length of Nails
(D) Hair Colour

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Which gas is responsible for fermentation...?

(A) Carbon Dioxide
(B) Nitrogen

(C) Oxygen
(D) None

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Which synthetic fibre is known as artificial Silk...?

(A) Nylon
(B) Rayon

(C) Cotton
(D) Terylene

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What is the photometer...?

(A) Testing picture Quality
(B) Measuring light Intensity

(C) Measuring Size of Picture
(D) Checking colors and Pictures

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Where is the uvula located in human body...?

(A) Throat
(B) Stomach

(C) Scrotum
(D) None

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Which of the following is used as jet fuel...?

(A) Kerosene oil
(B) Fuel oil

(C) Petrol
(D) Diesel oil

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Oil rises up to wick in a lamp because_____________...?

(A) Oil is very light
(B) Oil is volatile

(C) Diffusion of oil through the wick
(D) Capillary action phenomenon

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