## Theory of Machine When the sleeve of a Porter governor moves downwards, the governor speed

Decreases
First increases and then decreases
Remain unaffected
Increases

## Theory of Machine The frictional torque transmitted in a conical pivot bearing, considering uniform wear, is

(3/4) μ W R cosecα
(2/3) μ W R cosecα
μ W R cosecα
(1/2) μ W R cosecα

## Theory of Machine TJIE horse power transmitted by a belt is dependent upon

All of these
Tension on slack side of belt
Tension on tight side of belt

## Theory of Machine Two pulleys of radii r₁ and r₂ and at distance x apart are connected by means of a cross belt drive. The length of the belt is

π (r₁ + r₂) + [(r₁ - r₂)²/x] + 2x
π (r₁ - r₂) + [(r₁ - r₂)²/x] + 2x
π (r₁ + r₂) + [(r₁ + r₂)²/x] + 2x
π (r₁ - r₂) + [(r₁ + r₂)²/x] + 2x

## Theory of Machine The partial balancing means

Balancing partially revolving masses
Balancing partially reciprocating masses
All of these
Best balancing of engines

18.52 N-s/m
529.2 N-s/m
1.4 N-s/m
52.92 N-s/m