單項(xiàng)選擇題

What occurs in the combustion space of a diesel engine cylinder shortly after ignition and before the piston reaches TDC?（）

A.Rapid increase in temperature with constant pressure
B.Rapid increase in pressure with constant temperature
C.Rapid increase in pressure and temperature
D.Rapid increase in volume and decrease in pressure

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單項(xiàng)選擇題

The power output of a turbocharged diesel engine will drop if the cooling water flow through the after-cooler is interrupted because the （）.

A.turbocharger stalls
B.exhaust pressure increases
C.air charge density decreases
D.scavenge effect increases

單項(xiàng)選擇題

The diameter of a piston is usually less at the crown than at the skirt, in order to （）.

A.facilitate the installation of piston rings
B.allow for the expansion of the piston during operation
C.prevent crankcase vapors from entering the combustion chamber
D.reduce wearing of the upper cylinder liner

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What occurs in the combustion space of a diesel engine cylinder shortly after ignition and before the piston reaches TDC?（）

你可能感興趣的試題

The power output of a turbocharged diesel engine will drop if the cooling water flow through the after-cooler is interrupted because the （）.

The diameter of a piston is usually less at the crown than at the skirt, in order to （）.