## Theory of Machine When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

Flywheel
Meyer's expansion valve
Governor
D-slide valve

None of these
Greater than
Equal to
Less than

## Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because

The system is unbalanced
The shafts are rotating at very high speeds
Resonance is caused due to the heavy mass of the rotor
Bearing centre line coincides with the axis

## Theory of Machine In a single slider crank chain

Two are turning pairs and two are sliding pairs
One is a turning pair and three are sliding pairs
Each of the four pairs is a turning pair
Three are turning pairs and one is a sliding pair

## Theory of Machine The fundamental equation for correct steering is (where φ and α = Angle through which the axis of the outer wheel and inner wheel turns respectively, c = Distance between the pivots of the front axles, and d = Wheel base)

sinφ + sinα = b/c
tanφ + cotα = b/c
cosφ - sinα = c/b
cotφ - cotα = c/b