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Engineering Mechanics

Engineering Mechanics
The velocity ratio of a first system of pulleys with 4 pulleys is

8
20
4
16

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Engineering Mechanics
Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the balls with velocity ‘v’ is made to strike the second ball. Both the balls after impact will move with a velocity

v/4
v/2
v
v/8

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Engineering Mechanics
Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

(3/4) Ml²
(1/3) Ml²
(1/12) Ml²
(2/3) Ml²

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

75 mm
87.5 mm
125 mm
50 mm

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Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is

bh3/12
bh3/8
bh3/36
bh3/4

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Engineering Mechanics
In actual machines, mechanical advantage is _________ velocity ratio.

Less than
Greater than
None of these
Equal to

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MORE MCQ ON Engineering Mechanics

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