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Engineering Mechanics

Engineering Mechanics
A framed structure is imperfect, if the numbers of members are __________ (2j - 3).

Greater than
Less than
Either (B) or (C)
Equal to

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Engineering Mechanics
The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

Limiting friction
Dynamic friction
Static friction
Coefficient of friction

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Engineering Mechanics
The velocity ratio of a single purchase crab winch can be increased by

Increasing the number of teeth of the pinion
All of these
Increasing the radius of the load drum
Increasing the length of the handle

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Engineering Mechanics
For a self locking machine, the efficiency must be

Equal to 50%
Greater than 50%
1
Less than 50%

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Engineering Mechanics
According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)

IP = Ah2 / IG
IP = IG + Ah2
IP = IG / Ah2
IP = IG - Ah2

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Engineering Mechanics
A couple produces

Rotational motion
Translatory motion
Combined translatory and rotational motion
None of these

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MORE MCQ ON Engineering Mechanics

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