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Theory of Machine

Theory of Machine
The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.

Ratio
Product
Difference
Sum

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Theory of Machine
The relation between number of links (l) and number of joints (j) in a kinematic chain is

l = (1/2).(j + 2)
l = (2/3).(j + 2)
l = (3/4).(j + 3)
l = j + 4

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

More
Less
May be less or more depending on efficiency
Equal

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Theory of Machine
The total number of instantaneous centers for a mechanism consisting of n links are

n - 1
n
n/2
n(n - 1)/2

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Theory of Machine
When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

Governor
D-slide valve
Flywheel
Meyer's expansion valve

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Theory of Machine
For simple harmonic motion of the of follower, a cosine curve represents

Acceleration diagram
Displacement diagram
Velocity diagram
All of these

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