單項選擇題

Which of the following statements is true concerning the cetane number of diesel fuel?（）

A.The cetane number affects the amount of injection lag
B.The cetane number is an indication of the fuels viscosity
C.Ignition lag is reduced with fuels having a high cetane number
D.The cetane number is of little significance in the combustion process

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單項選擇題

Fuel oil having a low cetane rating could result in（）

A.improved cold weather starting
B.excessive fuel oil consumption
C.reduced ignition lag
D.smoother engine operation

單項選擇題

The ignition quality of a fuel oil is an important operational consideration because it（）

A.indicates the amount of abrasive material in the fuel
B.affects the starting ability of a cold engine
C.determines the amount of fuel penetration engine
D.affects the compression ratio of an operating engine

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Which of the following statements is true concerning the cetane number of diesel fuel?（）

你可能感興趣的試題

Fuel oil having a low cetane rating could result in（）

The ignition quality of a fuel oil is an important operational consideration because it（）

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