Four Stroke Engine

Which of the following is charged by the exciter coil in a capacitor discharge ignition system?

• Capacitor

• Primary circuit

• Secondary circuit

• Silicon controlled rectifier (SCR)

When do breaker points open in a breaker point ignition system?

• As primary voltage starts to build

• Five to 10 degrees after top dead center

• As primary voltage peaks

• As primary windings start induction

What is the function of the condenser?

• To regulate voltage to the points

• To protect the secondary circuit

• To minimize spark plug fouling

• To protect the points by reducing arcing

Where does the ignition coil output voltage come from?

• To regulate voltage to the points

• To protect the secondary circuit

• To minimize spark plug fouling

• To protect the points by reducing arcing

When does a magneto ignition system produce a spark?

• When DC current flows from the primary to the secondary windings

• When the primary circuit opens, inducing current into the secondary windings

• When the points are at maximum open

• When AC current flows from the secondary to the primary windings

What is the main function of the spark plug?

• Regulate temperature

• Controlling the engine circuits

• Charging the engine

• Igniting the air/fuel mixture

Which of the following controls the spark plug heat range?

• Spark plug gap

• Length of the insulator tip

• Diameter of the cone

• Current flowing through the spark plug

Which of the following is visible on a hot spark plug?

• A whiter insulator

• A darker insulator

• A long insulator tip

• A short insulator tip

The lower the heat range number specified on the spark plug, the

• hotter the plug

• colder the plug

• more resistance the spark plug offers

• more energy the spark plug produces

Which component is identified by the arrow?

• Gasket

• Terminal

• Electrode

• Insulator