L
L + 1
L - 1
L + 2

## Theory of Machine A kinematic chain is known as a mechanism when

Two of the links are fixed
None of these
None of the links is fixed
One of the links is fixed

## Theory of Machine If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

Four times the first one
One and a half times the first one
Same as the first one
One fourth of the first one

## Theory of Machine In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to

Reduce slip
Ensure proper alignment
Reduce vibration

Sum
Product
Difference
Ratio

## Theory of Machine A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body)

P = W (sin α + μ cos α)
P = W tan α
P = W (cos α + μ sin α)
P = W tan (α + φ)