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Engineering Mechanics

Engineering Mechanics
If the gravitational acceleration at any place is doubled, then the weight of a body will be

2g
g/2
g
√2.g

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Engineering Mechanics
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is

2mr²/5
3mr²/5
4mr²/5
3mr²/10

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Engineering Mechanics
Centre of gravity of a solid cone lies on the axis at the height

Three eighth of the total height above the base
One fourth of the total height above base
One third of the total height above base
One-half of the total height above base

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Engineering Mechanics
Moment of inertia of a circular section about an axis perpendicular to the section is

πd3/16
πd4/64
πd3/32
πd4/32

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Engineering Mechanics
In order to completely specify angular displacement by a vector, it must fix

Direction of the axis of rotation
Magnitude of angular displacement
All of these
Sense of angular displacement

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Engineering Mechanics
The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.

3r/4π
4r/ 3π
3r/ 8
8r/3

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MORE MCQ ON Engineering Mechanics

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