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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a rectangular section 3 cm wide and 4 cm deep about X-X axis is

16 cm4
9 cm4
12 cm4
20 cm4

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Engineering Mechanics
The mechanical advantage of a lifting machine is the ratio of

Output to the input
Load lifted to the effort applied
All of these
Distance moved by effort to the distance moved by load

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Engineering Mechanics
Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. It the line of action of the resultant is 6 mm from any given force, the two forces are

15 N and 15 N
None of these
20 N and 5 N
15 N and 5 N

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Engineering Mechanics
When the spring of a watch is wound, it will possess

Heat energy
Electrical energy
Kinetic energy
Strain energy

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Engineering Mechanics
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is

D/(D + d)
2D/(D + d)
D/(D - d)
2D/(D - d)

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Engineering Mechanics
The impact between two lead spheres is approximately equal to an __________ impact.

Solid
Inelastic
None of these
Elastic

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MORE MCQ ON Engineering Mechanics

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