Theory of Machine
Which of the following governor is used to drive a gramophone?

Hartnell governor
Pickering governor
Watt governor
Porter governor

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam lap and the angle of advance of the eccentric but keeping constant the travel and lead of the valve, this method will

Cause withdrawing or throttling of steam
Reduce length of effective stroke of piston
Reduce maximum opening of port to steam
All of the listed here

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the same direction as that of wheels, men due to centrifugal force

The reaction on the rear wheels increases and on the front wheels decreases
The reaction on me inner wheels increases and on the outer wheels decreases
The reaction on the outer wheels increases and on the inner wheels decreases
The reaction on the front wheels increases and on the rear wheels decreases

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank)

m.ω².r cosθ
m.ω².r (sin 2θ/n)
m.ω².r sinθ
m.ω².r (cos 2θ/n)

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
In a single slider crank chain

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

ANSWER DOWNLOAD EXAMIANS APP