單項選擇題

Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of （）

A.less even torque
B.higher cylinder head temperatures
C.fewer power strokes per revolution
D.greater weight/size requirements

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單項選擇題

A disadvantage of a four-stroke/cycle diesel engine is （）

A.higher working temperature of piston and cylinder
B.the use of scavenge ports
C.fewer power strokes per revolution of the crankshaft
D.part of the fuel is burned as the piston is moving away from top dead center

單項選擇題

The cubic inch(or liter) displacement of a cylinder is determined by the diameter of the piston and the （）

A.length of the crankshaft
B.volume of the clearance space
C.weight of piston
D.length of the stroke

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Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of （）

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A disadvantage of a four-stroke/cycle diesel engine is （）

The cubic inch(or liter) displacement of a cylinder is determined by the diameter of the piston and the （）