One of the differences between a two-stroke engine and a four-stroke engine is,（）
A: a two-stroke engine works without exhaust operation
B: a two-stroke engine works without compression stroke
C: a two-stroke engine works without expansion stroke
D: a two-stroke engine works without suction operatio
A: a two-stroke engine works without exhaust operation
B: a two-stroke engine works without compression stroke
C: a two-stroke engine works without expansion stroke
D: a two-stroke engine works without suction operatio
举一反三
- It is a verified fact that the higher ____<br/>of a two-stroke engine, the higher _____. A: the engine efficiency…the<br/>stroke/bore ratio B: the stroke/bore ratio…the<br/>engine efficiency C: the bore / stroke ratio…the<br/>engine efficiency D: the engine efficiency…the<br/>bore / stroke ratio
- A two stroke diesel engine exhaust temperature will be lower than a four stroke diesel engine of the same displacement because the _____. ① MEP is lower and the scavenging air is cooling the exhaust gases ② valve overlap in a four stroke A.① B.② C.① and ② D.Neither ① nor ② is correct
- In the four-stroke engine, it takes( )to make one<br/>power stroke() A: one propulsion B: two propulsions. C: two revolutions D: one revolution
- Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
- Four strokes—intake stroke, compression stroke, power stroke and exhaust stroke—complete one working cycle．