[A]. distance moved by effort to the distance moved by load
[B]. load lifted to the effort applied
[C]. output to the input
[D]. all of the above
✅ The correct answer is option B.
Mechanical Engineering MCQs
The low pressure acetylene is produced at the welding site by the chemical reaction between water and calcium carbonate.
[A]. Correct
[B]. Incorrect
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✅ The correct answer is option B.
The speed of a turbine runner is
[A]. directly proportional to H1/2
[B]. inversely proportional to H1/2
[C]. directly proportional to H3/2
[D]. inversely proportional to H3/2
✅ The correct answer is option A.
The self ignition temperature of petrol is __________ as compared to diesel oil.
[A]. same
[B]. lower
[C]. higher
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✅ The correct answer is option C.
The air gap between the central electrode and ground (or side) electrode of a spark plug is around
[A]. 0.2 mm
[B]. 0.5 mm
[C]. 1 mm
[D]. 1.5 mm
✅ The correct answer is option C.
The Bernoulli’s equation is based on the assumption that
[A]. there is no loss of energy of the liquid flowing
[B]. the velocity of flow is uniform across any cross-section of the pipe
[C]. no force except gravity acts on the fluid
[D]. all of the above
✅ The correct answer is option D.
The total radiation from a black body per second per unit area is __________ fourth power of the absolute temperature. This statement is known as Stefan-Boltzmann law.
[A]. equal to
[B]. directly proportional to
[C]. inversely proportional to
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✅ The correct answer is option B.
According to Gay-Lussac law for a perfect gas, p/T = constant, if v is kept constant.
[A]. True
[B]. False
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null
✅ The correct answer is option A.
The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is
[A]. sin θ
[B]. cos θ
[C]. tan θ
[D]. cosec θ
✅ The correct answer is option A.
A systematic job improvement sequence will consist of
[A]. motion study
[B]. time study
[C]. job enrichment
[D]. all of these
✅ The correct answer is option D.