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Engineering Mechanics

Engineering Mechanics
A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is

5
20
40
10

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Engineering Mechanics
A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction.

None of these
Decrease
Increase
Not be effected

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Engineering Mechanics
The force, by which the body is attracted, towards the center of the earth, is called

Momentum
Impulsive force
Weight
Mass

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Engineering Mechanics
Moment of inertia of a circular section about its diameter (d) is

πd3/16
πd4/32
πd4/64
πd3/32

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Engineering Mechanics
In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is

200
100
400
50

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Engineering Mechanics
The algebraic sum of moments of the forces forming couple about any point in their plane is

Equal to the moment of the couple
Constant
Both of above are wrong
Both of above are correct

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MORE MCQ ON Engineering Mechanics

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