Mechanical Engineering :: Engineering Mechanics
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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 amount by which the outer edge of the rail is raised, is known as super-elevation.
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The angle of inclination of the plane at which the body begins to move down the plane, is called
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Which of the following statement is incorrect?
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A.
A force acting in the opposite direction to the motion of the body is called force of friction. |
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B.
The ratio of the limiting friction to the normal reaction is called coefficient of friction. |
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C.
A machine whose efficiency is 100% is known as an ideal machine. |
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D.
The velocity ratio of a machine is the ratio of load lifted to the effort applied. |