Question 92Motor Plants - 1st Asst/Chief
70% to passWhen is fuel injected into a cylinder of diesel engines?
AAfter combustion gases in the cylinder have expanded.
BAs air is taken into the cylinder.
CAfter air in the cylinder is compressed.
DBefore air in the cylinder is compressed.
AI Explanation
The correct answer is C) After air in the cylinder is compressed. In a diesel engine, fuel is injected into the cylinder after the air has been compressed. This allows the fuel to ignite and combust, generating the power that drives the engine. The compression of the air inside the cylinder increases its temperature, which in turn causes the injected fuel to ignite and burn. The other answer choices are incorrect because they do not accurately describe the timing of fuel injection in a diesel engine.
Related Questions
Q162:What is the normal bearing clearance permitted at the horizontal axis of the sha... Q117:While operating the fuel oil centrifuge shown in the illustration, the fuel oil ... Q77:Crankcase explosions in propulsion diesel engines result from _______________. Q144:Faulty operation of diesel engine fuel injection nozzles can be a direct cause o... Q168:When preparing to light off a cold boiler equipped with a return flow fuel oil s...
Ready to test your knowledge?
Take a Motor Plants - 1st Asst/Chief Practice ExamOfficial Resources