Theory of Machine
In a multiple V-belt drive, if one of the belts is broken, then we should replace

None of these
All the belts
The broken belt and the belts on either side of it
The broken belt only

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Theory of Machine
Sensitiveness of the governor is defined as the ratio of the

Mean speed to the minimum equilibrium speed
Mean speed to the maximum equilibrium speed
Difference of the maximum and minimum equilibrium speeds to the mean speed
Sum of the maximum and minimum equilibrium speeds to the mean speed

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Theory of Machine
The relation l = (2/3).(j + 2) apply only to kinematic chains in which lower pairs are used. This may be used to kinematic chains in which higher pairs are used, but each higher pair may be taken as equivalent to

Any one of these
One lower pair and two additional links
Two lower pairs and two additional links
Two lower pairs and one additional link

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