A: pressure
B: vacuum
C: compression ratio
D: air fuel ratio
举一反三
- We can use two ways to circulate oil through An engine:pressure and splash.
- The _______ compression-ignition engine has a compression ratio of 16~24 to 1 and raises an induced charge of air to a pressure of 3~5 MPa . and a temperature of 500-800 oc at the end of the compression stroke.
- In modern engine designs, two methods of lubrication are combined: pressure lubrication and splash lubrication (see Fig.3-7).
- Which of the following operation will have a direct impact on the rate of wear in a cylinder liner （） A: amount of scavenge air to the cylinder B: quality of fuel injected C: viscosity of the lube oil D: compression ratio of the pisto
- For<br/>a given fuel, a change in the compression ratio will affect the<br/>ignition lag by which of the listed means? ____. A: an<br/>increase in compression ratio will increase the ignition lag B: in<br/>increase in compression ratio will decrease the ignition lag C: a<br/>decrease in compression ratio will decrease the ignition lag D: a<br/>decrease in ignition lag will increase the compression ratio
内容
- 0
In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces ____. A: all of the oil used by the engine through a filter B: some of the oil used by the engine through a filter C: some of the oil used by the engine through a centrifuge D: all of the oil used by the engine through a centrifuge
- 1
What is the heart of the lubrication system, which is located in the oil pan on the bottom of the engine? And it pulls oil up from the oil pan and makes the engine oil circulate through the engine. A: oil filter B: Screened intake C: oil pump D: oil pressure relief valve
- 2
Which of the following methods is normally used to lubricate bearings in a small high-speed diesel engine?（） A: Splash lubrication B: Pressure lubrication C: Sight feed lubricators D: Mechanical lubricator
- 3
Diesel engine air start system check valves are opened by （） A: an air start cam B: cylinder compression pressure C: starting air pressure D: valve spring
- 4
An electric heater built into some smaller diesel engines is used to _______. A: aise lube oil viscosity for easier starting in cold weathe B: increase air inlet temperature C: increase compression ratio D: increase jacket water temperature for easier starting in cold weathe