It is a verified fact that the higher ____
of a two-stroke engine, the higher _____.
A: the engine efficiency…the
stroke/bore ratio
B: the stroke/bore ratio…the
engine efficiency
C: the bore / stroke ratio…the
engine efficiency
D: the engine efficiency…the
bore / stroke ratio
of a two-stroke engine, the higher _____.
A: the engine efficiency…the
stroke/bore ratio
B: the stroke/bore ratio…the
engine efficiency
C: the bore / stroke ratio…the
engine efficiency
D: the engine efficiency…the
bore / stroke ratio
举一反三
- 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
- 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
- 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
- The higher compression ratio gives a ______thermal efficiency
- Volumetric efficiency is the ratio of