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Theory of Machine

Theory of Machine
The secondary unbalanced force is maximum __________ in one revolution of the crank.

Sixteen times
Eight times
Four times
Two times

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Theory of Machine
When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the ________ pulley must be taken into consideration.

Smaller OR Larger
Larger
Smaller
None of the listed here

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Theory of Machine
Which type of gear train is used in clock mechanism to join hour hand and minute hand?

Reverted gear train
Compound gear train
Epicyclic gear train
Simple gear train

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Theory of Machine
The mechanism consisting of three turning pairs and one sliding pair, is called a

Whitworth quick return motion mechanism
Single slider crank chain
Crank and slotted lever quick return motion mechanism
All of these

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Theory of Machine
The factional torque for square thread at the mean radius r while raising load W is given by

T = W.r tan(φ - α)
T = W.r tan(φ + α)
T = W.r tanα
T = W.r tanφ

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Theory of Machine
A Hartnell governor is a

Spring loaded governor
Inertia governor
Dead weight governor
Pendulum type governor

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