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Theory of Machine

Theory of Machine
Cross head and guides form a

Sliding pair
Turning pair
Lower pair
Higher pair

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Theory of Machine
A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to

G.I₂
I₂/G²
G².I₂
I₂/G

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Theory of Machine
Ackermann steering gear consists of

Sliding pairs
Higher pairs
Turning pairs
Rolling pairs

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Theory of Machine
The height of a Watt's governor is

Inversely proportional to speed
Directly proportional to (speed)²
Inversely proportional to (speed)²
Directly proportional to speed

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Theory of Machine
A higher pair has__________.

Point contact
No contact
None of these
Surface contact

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Theory of Machine
Whirling speed of the shaft is the speed at which

Combination of transverse and longitudinal vibration occurs
Shaft tends to vibrate vigorously in transverse direction
Torsional vibrations occur
Shaft tends to vibrate in longitudinal direction

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