Ignition System Fundamentals
questions with verified answers
Tech A says that ignition advance can be controlled using a vacuum advance unit. Tech B says
the vacuum advance unit relies on a vacuum line from a manifold vacuum. Who is correct? -
ANS ✔✔Both Techs A and B
Ignition coils are basically: - ANS ✔✔step-up transformers
Modern vehicles no longer use a distributor and send the high voltage from the coil packs or
individual coils directly to the ________. - ANS ✔✔Spark plugs
Which component of the ignition system is threaded into the top of each cylinder and provides
a place for the spark to jump within the combustion chamber? - ANS ✔✔Spark plugs
The type of ignition system in which two cylinders share one coil is called a: - ANS ✔✔waste
spark ignition system
The spark plugs are threaded into the top of each cylinder and provide a place for the spark to
jump within the ________. - ANS ✔✔Combustion chamber
Which of the following does the ignition system use to convert relatively low-voltage and high-
current flow into very high-voltage and very low-current flow? - ANS ✔✔Induction coil
As engine rpm increases, the ignition timing must:
retard. - ANS ✔✔advance
questions with verified answers
Tech A says that ignition advance can be controlled using a vacuum advance unit. Tech B says
the vacuum advance unit relies on a vacuum line from a manifold vacuum. Who is correct? -
ANS ✔✔Both Techs A and B
Ignition coils are basically: - ANS ✔✔step-up transformers
Modern vehicles no longer use a distributor and send the high voltage from the coil packs or
individual coils directly to the ________. - ANS ✔✔Spark plugs
Which component of the ignition system is threaded into the top of each cylinder and provides
a place for the spark to jump within the combustion chamber? - ANS ✔✔Spark plugs
The type of ignition system in which two cylinders share one coil is called a: - ANS ✔✔waste
spark ignition system
The spark plugs are threaded into the top of each cylinder and provide a place for the spark to
jump within the ________. - ANS ✔✔Combustion chamber
Which of the following does the ignition system use to convert relatively low-voltage and high-
current flow into very high-voltage and very low-current flow? - ANS ✔✔Induction coil
As engine rpm increases, the ignition timing must:
retard. - ANS ✔✔advance
