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Applied Mechanics and Graphic Statics

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
The motion of a bicycle wheel is

Rotary
Translatory
Rotary and translatory
Curvilinear

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Applied Mechanics and Graphic Statics
If the given forces P₁, P₂, P₃ and P₄ are such that the force polygon does not close, then the system will

Always reduce to a couple
Both (A) and (C)
Always reduce to a resultant force
Be in equilibrium

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Applied Mechanics and Graphic Statics
The direction of projection should bisect the angle between the inclined plane and the vertical for a range of a projectile on inclined plane

To be maximum
None of these
To be zero
To be minimum

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Applied Mechanics and Graphic Statics
A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about (Assume g = 10 m/sec²)

43833
43834
43835
43832

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Applied Mechanics and Graphic Statics
Power developed by a torque, is

All listed here
2πNT kg m/min
2πNT /60 watts
2πNT/4500 h.p

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