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Engineering Mechanics

Engineering Mechanics
The rate of doing work is known as

None of these
Potential energy
Kinetic energy
Power

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Engineering Mechanics
One kg force is equal to

12 N
9.8 N
7.8 N
8.9 N

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Engineering Mechanics
The point, through which the whole weight of the body acts, irrespective of its position, is known as

Center of percussion
Center of gravity
Center of mass
Moment of inertia

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Engineering Mechanics
If a number of forces are acting at a point, their resultant is given by

√[(∑V)2 +(∑H)2 +2(∑V)(∑H)]
√[(∑V)2 + (∑H)2]
(∑V)2 + (∑H)2
(∑V)2 +(∑H)2 +2(∑V)(∑H)

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Engineering Mechanics
When a body of mass 'm' attains a velocity 'v' from rest in time 't', then the kinetic energy of translation is

mgv2
0.5 mgv2
mv2
0.5 mv2

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

πN/180
2πN/60
πN/60
2πN/180

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MORE MCQ ON Engineering Mechanics

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