Quiz 35 Ignition System Problems,
Testing and Repair well answered
Retarded ignition timing - correct answer ✔✔ Engine will have poor fuel economy
Initial ignition timing - correct answer ✔✔ Spark timing set by the mechanic with the engine
idling.
Spark test - correct answer ✔✔ Measures the brightness and length of the electric are
produced by the ignition system.
Read spark plugs - correct answer ✔✔ To do this, closely inspect and analyze the condition of
each tip and insulator.
Dwell - correct answer ✔✔ Duration the points remain closed.
Dead cylinder - correct answer ✔✔ To check for this, pull off one spark plug wire at a time.
Wire feeler gauge - correct answer ✔✔ Should be used to measure spark plug gap.
Wet plug - correct answer ✔✔ Indicates that a plug is not firing or that there is an engine
problem in that cylinder.
Oscilloscope - correct answer ✔✔ Precisely measures the operating voltages of an ignition
system.
Testing and Repair well answered
Retarded ignition timing - correct answer ✔✔ Engine will have poor fuel economy
Initial ignition timing - correct answer ✔✔ Spark timing set by the mechanic with the engine
idling.
Spark test - correct answer ✔✔ Measures the brightness and length of the electric are
produced by the ignition system.
Read spark plugs - correct answer ✔✔ To do this, closely inspect and analyze the condition of
each tip and insulator.
Dwell - correct answer ✔✔ Duration the points remain closed.
Dead cylinder - correct answer ✔✔ To check for this, pull off one spark plug wire at a time.
Wire feeler gauge - correct answer ✔✔ Should be used to measure spark plug gap.
Wet plug - correct answer ✔✔ Indicates that a plug is not firing or that there is an engine
problem in that cylinder.
Oscilloscope - correct answer ✔✔ Precisely measures the operating voltages of an ignition
system.
