Which of the following forms of energy is demonstrated through the process of combustion?（）
When the fuel oil is burning in the combustion chamber, it （）.
Which factor of the following affects not only the fuels combustion but also the engine’s maintenance?（）
Peter was（）the lawn around the roses.
A combination combustible gas and oxygen indicator is an instrument that measures the（） of both combustible gas and oxygen; each is indicated on a separate meter.
Successful combustion inside the cylinders of a diesel engine is dependent upon （）.
The air required for combustion is taken from the engine room through a filter fitted on the turbochargerThis reduces the risk for too and contamination of the combustion air（）
The viscosity regulator controls the fuel oil temperature （） provide oil at the correct viscosity for combustion.
Combustible gas indicators operate by drawing an air sample into the instrument（）.
Fires resulting from spontaneous combustion are usually caused by the improper disposal of（）.
Diesel engine blow-by is the leakage of combustion gases past the （）
The cylinder head, cylinder liner and （） form the combustion chamber.
Since the burning or combustion takes place within the engine itself, the engine is known as （）.
If the engine does start on air, but combustion does not immediately begin, the cause may be （）.
Before entering a tank，always check the vapor content（）a combustible gas indicator.
On a diesel engine, fuel is delivered into the combustion space by （）.
The most likely place for a fire to start through the process of spontaneous combustion is in （）.
Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.
A combustible gas indicator meter is calibrated to read the percentage of（）.
A pumproom is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases? （）
（）is the most liable to spontaneous combustion.
The main operating characteristic of diesel engines which distinguishes them from other internal combustion engines is the （）
The fact that all the stars are moving around the sun was first put forward around 500 hundred years ago, __________？
Anvalve which allows the fresh charge of fuel／air into the combustion chamber。
