Auto-ignition might occurs in spark ignition .4 engine at low engine speed because the flame velocity is slow and thus the burn time is long, this results in more time for auto-ignition True False O Spark ignition engine with high .5 compression ratio can be used with less possibility of auto-ignition by Increasing the inlet temperature Using low octane number fuel O Using high octane number fuel O Reducing the turbulence motion None of the above Cross-flow (in four stroke engine) from .6 inlet to exhaust occurs M the end of the exhaust stroke and the beginning of the induction stroke when O both valves are close M the end of the exhaust stroke and the beginning of the induction stroke when O both valves are open Al the end of the intake stroke and the beginning of the exhaust stroke when O both valves are open M the end of the exhaust stroke and the beginning of the compression stroke when both valves are open

Auto-ignition might occurs in spark ignition .4 engine at low engine speed because the flame velocity is slow and thus the burn time is long, this results in more time for auto-ignition True False O Spark ignition engine with high .5 compression ratio can be used with less possibility of auto-ignition by Increasing the inlet temperature Using low octane number fuel O Using high octane number fuel O Reducing the turbulence motion None of the above Cross-flow (in four stroke engine) from .6 inlet to exhaust occurs M the end of the exhaust stroke and the beginning of the induction stroke when O both valves are close M the end of the exhaust stroke and the beginning of the induction stroke when O both valves are open Al the end of the intake stroke and the beginning of the exhaust stroke when O both valves are open M the end of the exhaust stroke and the beginning of the compression stroke when both valves are open

Automotive Technology: A Systems Approach (MindTap Course List)

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter9: Automotive Engine Designs And Diagnosis

Section: Chapter Questions

Problem 8RQ: True or False? In an HCCI engine, combustion immediately and simultaneously produces a steady flame...

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