Engineering Mechanics Mcqs

This set of Mechanical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “ Engineering Mechanics ”. These questions are chosen from a collection of most authoritative and best reference books on Mechanical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Engineering Mechanics comprehensively.

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76.
The ratio of limiting friction and normal reaction is known as _____________________?

Coefficient of friction

Angle of friction

Angle of repose

Sliding friction

77.
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be___________________?

Towards the wall at its upper end

Away from the wall at its upper end

Upwards at its upper end

Downwards at its upper end

78.
Frictional force encountered after commencement of motion is called ___________________?

Post friction

Limiting friction

Kinematic friction

Frictional resistance

Dynamic friction

79.
Two coplanar couples having equal and opposite moments_________________?

Balance each other

Produce a couple and an unbalanced force

Are equivalent

Produce a moment of couple

Can not balance each other

80.
Pick up the incorrect statement from the following ?

The C.G. of a circle is at its center

The C.G. of a triangle is at the intersection of its medians

The C.G. of a rectangle is at the inter-section of its diagonals

The C.G. of a semicircle is at a distance of r/2 from the center

81.
Which one of the following statements is not correct_________________?

The tangent of the angle of friction is equal to coefficient of friction

The angle of repose is equal to angle of friction

The tangent of the angle of repose is equal to coefficient of friction

The sine of the angle of repose is equal to coefficient to friction

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