Engineering Mechanics – HI MCQ!

In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is?

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A machine having an efficiency less than 50%, is known as?

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The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s²?

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The velocity ratio of a first system of pulleys with 4 pulleys is?

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The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as?

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Concurrent forces are those forces whose lines of action?

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The forces, which meet at one point and their lines of action also lie on the same plane, are known as?

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The matter contained in a body, is called?

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In order to completely specify angular displacement by a vector, it must fix?

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A machine having an efficiency greater than 50%, is known as?

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