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Theory of Machine

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

Eight times
Two times
Sixteen times
Four times

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Theory of Machine
The unbalanced force due to reciprocating masses

Varies in magnitude but constant in direction
Constant in magnitude and direction both
Varies in direction but constant in magnitude
Varies in magnitude and direction both

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Theory of Machine
When brakes are applied to all the four wheels of a moving car, the distance traveled by the car before it is brought to rest, will be

Zero
Minimum
Maximum
None of these

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

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

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Theory of Machine
In its simplest form, a cam mechanism consists of following number of links

1
4
2
3

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Theory of Machine
A slider crank chain consists of following numbers of turning and sliding pairs

3, 1
2, 2
1, 3
4, 0

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