Internal Combustion Engines
Pick up the wrong statement about supercharging

Supercharging results in fuel economy
Supercharging reduces knocking in diesel engines
Supercharging at high altitudes is essential
There can be limited supercharging in petrol engines because of detonation

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
The tangential velocity of the water element having a free vortex is

Directly proportional to its (distance)2 from the centre
Inversely proportional to its (distance)2 from the centre
Inversely proportional to its distance from the centre
Directly proportional to its distance from the centre

ANSWER DOWNLOAD EXAMIANS APP