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Theory of Machine

Theory of Machine
A slider moves at a velocity v on a link revolving at ω rad/s. The coriolis component of acceleration is

2ωv
ωv
2ωv²
ω²v

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Theory of Machine
The partial balancing of reciprocating parts in locomotives produces

All of these
Variation in tractive force along the line of stroke
Hammer blow
Swaying couple

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Theory of Machine
The example of spherical pair is

Lead screw of a lathe
Bolt and nut
Ball and socket joint
Ball bearing and roller bearing

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Theory of Machine
The Coriolis component of acceleration leads the sliding velocity by

45°
180°
90°
135°

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Theory of Machine
When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than

0.25
1
2
0.5

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Theory of Machine
The power from the engine to the rear axle of an automobile is transmitted by means of

Worm and worm wheel
Bevel gears
Hooke's joint
Spur gears

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