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Engineering Mechanics

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

50 mm
75 mm
125 mm
87.5 mm

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

Reversible machine
Neither reversible nor non-reversible machine
Non-reversible machine
Ideal machine

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

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Engineering Mechanics
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.

Greater than
Equal to
None of these
Less than

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

Magnitude of angular displacement
Sense of angular displacement
All of these
Direction of the axis of rotation

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Engineering Mechanics
The law of motion involved in the recoil of gun is

Newton's second law of motion
None of these
Newton's third law of motion
Newton's first law of motion

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MORE MCQ ON Engineering Mechanics

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