Internal Combustion Engines
If petrol is used in a diesel engine, then

Efficiency will be low
Black smoke will be produced
Higher knocking will occur
Low power will be produced

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Internal Combustion Engines
In a typical medium speed 4-stroke cycle diesel engine the inlet valve

May open or close anywhere
Opens at top dead center and closes at bottom dead center
Opens at 20° before top dead center and closes at 35° after the bottom dead center
Opens at 10° after top dead center and closes 20° before the bottom dead center

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

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

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Internal Combustion Engines
A hydraulic ram is a device used to

To lift water from deep wells
To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height
Increase the pressure of water
Store the energy of water

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