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Theory of Machine

Theory of Machine
Rectilinear motion of piston is converted into rotary by

Connecting rod
Gudgeon pin
Slider crank
Cross head

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Theory of Machine
In an ideal machine, the output as compared to input is

More
May be less or more depending on efficiency
Equal
Less

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Theory of Machine
The advantage of the piston valve over the slide valve is that in the former case

Both wear and power absorbed are low
Wear is less
Power absorbed is less
The pressure developed being high provides tight sealing

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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
Simple gear train
Compound gear train
Epicyclic gear train

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Theory of Machine
The two elements of a pair are said to form a _________ when they permit relative motion between them.

Kinematic pair
None of these
Open pair
Sliding pair

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Theory of Machine
The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

2
1
4
3

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