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Theory of Machine

Theory of Machine
Throw of a cam is the maximum distance of the follower from

Pitch circle
Prime circle
Root circle
Base circle

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Theory of Machine
In higher pair, the relative motion is

Combination of sliding and turning
Purely rotary
Purely sliding
Purely turning

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Theory of Machine
Which one of the following is an exact straight line mechanism using lower pairs?

Peaucellier’s mechanism
Robert’s mechanism
Watt’s mechanism
Grasshopper mechanism

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Theory of Machine
In vibration isolation system, the transmissibility will be equal to unity, for all values of damping factor, if ω/ωn is

Equal to 1
Equal to 2
Less than 2
Greater than 2

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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

1/8
1/24
12
4/15

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Theory of Machine
The Coriolis component of acceleration acts

Perpendicular to the sliding surface
Parallel to the sliding surface
At 45° to the sliding surface
Along the sliding surface

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