Internal Combustion Engines
The purpose of testing an internal combustion engine is

To conform the data used in design, the validity of which may be doubtful
To determine the information, which cannot be obtained by calculations
To satisfy the customer regarding the performance of the engine
All of these

ANSWER DOWNLOAD EXAMIANS APP

Internal Combustion Engines
The expansion of fuel in a four stroke cycle diesel engine

Starts at top dead center and ends at 30° after top dead center
Starts at 15° before top dead center and ends at 30° after top dead center
Starts at 15° after top dead center and ends at 30° before bottom dead center
May start and end anywhere

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP