单项选择题
A.more power strokes per revolution B.the use of scavenge air C.more complicated valve gear D.higher working temperature of the piston and cylinder
Compared to four-stroke/cycle engines, two-stroke/cycle...
单项选择题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
A disadvantage of a four-stroke/cycle diesel engine is ...
单项选择题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
The cubic inch(or liter) displacement of a cylinder is ...
单项选择题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
