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Theory of Machine

Theory of Machine
What is the number of instantaneous centers for an eight link mechanism?

15
8
28
30

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Theory of Machine
A cam mechanism imparts following motion

Oscillating
Reciprocating
Rotating
All of these

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Theory of Machine
In a pantograph, all the pairs are

Sliding pairs
Self-closed pairs
Turning pairs
Spherical pairs

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Theory of Machine
The ratio of maximum fluctuation of energy to the work-done per cycle is called

Coefficient of fluctuation of energy
Maximum fluctuation of energy
None of these
Fluctuation of energy

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Theory of Machine
A mechanism consisting of four links is called a __________ mechanism.

Compound
Simple
None of these
Binary

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Theory of Machine
There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is

1/24
12
1/8
4/15

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