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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
For a self-locking machine, the efficiency should be

None of these
0.5
Less than 60%
More than 50%

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Applied Mechanics and Graphic Statics
Rate of change of angular momentum is equal to

Force
Linear momentum
Torque
Impulse

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Applied Mechanics and Graphic Statics
In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is

80
50
60
30

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Applied Mechanics and Graphic Statics
In simple harmonic motion, acceleration of a particle is proportional to

Velocity
Direction
Displacement
Rate of change of velocity

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Applied Mechanics and Graphic Statics
The resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’, is

P² + Q² + 2PQ cos θ
√(P² + Q² + 2PQ cos θ)
P² + Q² + 2P sin θ
P² + Q² + 2PQ tan θ

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Applied Mechanics and Graphic Statics
The time period of a simple pendulum depends on (i) Mass of suspended particle (ii) Length of the pendulum (iii) Acceleration due to gravity

Only (i)
Both (i) and (iii)
All are correct
Both (ii) and (iii)

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