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Engineering Mechanics

Engineering Mechanics
A pendulum which executes one beat per second is known as

Torsional pendulum
Second's pendulum
Compound pendulum
Simple pendulum

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Engineering Mechanics
The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)

P = mW - C
P = C - mW
P = mW + C
P = m/W + C

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Engineering Mechanics
Moment of inertia is the

Second moment of mass
Second moment of force
Second moment of area
All of these

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Engineering Mechanics
The centre of gravity of an isosceles triangle with base (p) and sides (q) from its base is

(p² - q²)/4
(p² + q²)/4
[√(4p² - q²)]/6
(4p² - q²)/6

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Engineering Mechanics
The efficiency of a lifting machine is the ratio of

Mechanical advantage to the velocity ratio
Work done by the machine to the work done on the machine
Output to the input
All of these

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Engineering Mechanics
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is

sinθ
cosecθ
tanθ
cosθ

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MORE MCQ ON Engineering Mechanics

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