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Engineering Mechanics

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

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

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Engineering Mechanics
One joule is equal to

0.1 N-m
1 N-m
100 N-m
10 N-m

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Engineering Mechanics
The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length 'l' about the longitudinal axis or polar axis is

mr²/4
mr²/8
mr²/6
mr²/2

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Engineering Mechanics
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate

1.0 cm
2.5 cm
0.5 cm
1.5 cm

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Engineering Mechanics
When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

0.5 Iω
0.5 Iω2
Iω
Iω2

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

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

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