Engineering · Diesel — Combustion
Ignition delay in a diesel engine is the period between:
- AStart of injection and start of combustion✓ Correct
- BIntake valve closing and injection
- CExhaust valve opening and scavenging
- DTop dead center and bottom dead center
Explanation
Ignition delay is the lag between the start of fuel injection and the start of pressure rise from combustion. Excessive delay causes rough, knocking combustion.
Authority: Diesel Engines (USCG engineering topic)
Practice the full Engineering bank
Free spaced-repetition quizzing across 2190 USCG exam questions — it schedules your reviews so the ones you miss come back until they stick.
Related Engineering questions
- Diesel — Combustion
Ignition of the fuel in a diesel engine is initiated by:
- Diesel — Combustion
The compression ratio of an engine is the ratio of the:
- Diesel — Combustion
Ignition in a diesel engine is initiated by:
- Diesel — Combustion
Diesel knock is caused by:
- Diesel — Operating Cycle
In a four-stroke-cycle diesel engine, the events occur in which order?
- Diesel — Operating Cycle
Compared with a four-stroke engine of the same speed and cylinder size, a two-stroke-cycle diesel produces a power stroke: