A slow-running pendulum clock can be speeded up by_______________...? Mcqs

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A slow-running pendulum clock can be speeded up by_______________...?

(A) Increasing the length of the rod
(B) Increasing the weight of the bob

(C) Reducing the length of the rod
(D) Reducing the weight of the bob

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If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________...?

(A) Annealing
(B) Quenching

(C) Tempering
(D) Nitriding

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The over-cooking of food should be avoided because____________...?

(A) Make the food difficult to digest
(B) Reduce the nutrition value of food

(C) Make food Poison
(D) None

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Heavy mechanical complex use a large amount of water for_________...?

(A) Cooling
(B) Freezing

(C) Washing
(D) Mixing

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In a railway track, two rails are joined end to end with a gap tin between them because...?

(A) Steel can be saved
(B) Accidents due to contraction in winter can be avoided

(C) Air gaps are necessary for bearing the weight of running train
(D) Accidents due to expansion in summer can be avoided

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Bronze medal is made up of metals ...?

(A) copper,nickel
(B) copper, tin

(C) copper, silver
(D) copper, zinc

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The sunlight can reach a depth of___________meters in the ocean...?

(A) 80
(B) 200

(C) 120
(D) None

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Amount of pressure of liquid increases with increase of _____...?

(A) Depth
(B) Volume

(C) Temperature
(D) Surface tension

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A blood sugar level of 210 mg / dL typically indicates...?

(A) Normal blood sugar levels
(B) Hypoglycemia

(C) Prediabetes
(D) Diabetes

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The sun appears red at sunrise and sunset while it appears white at noon, because...?

(A) Of refraction
(B) It is cooler at sunrise and at sunset

(C) Of diffraction leading to red end of the spectrum reaching the earth.
(D) Of Scattering of light due to dust particles and air molecules.

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