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Engineering Mechanics

Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

g sinθ
g cosθ
g tanθ
None of these

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Engineering Mechanics
The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is

87.5 mm
75 mm
125 mm
50 mm

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Engineering Mechanics
The angular velocity (in rad/s) of a body rotating at N revolutions per minute is

2πN/60
πN/60
2πN/180
πN/180

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Engineering Mechanics
Coefficient of friction depends upon

Nature of surface only
None of these
Area of contact only
Both (A) and (B)

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Engineering Mechanics
If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.

Change
None of these
Changes periodically
Does not change

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Engineering Mechanics
A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is

5
40
20
10

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MORE MCQ ON Engineering Mechanics

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