Which statement about the distributor is correct?

• A. It serves to regulate fuel pressure.
• B. It sends the spark to the correct cylinder via a rotating finger and points.
• C. It filters intake air.
• D. It cools the spark plugs.

Answer: (B)

The main idea is that the distributor’s job is to route the ignition spark to the correct cylinder at the right time. It does this with a rotating finger (the rotor) inside the distributor cap that spins as the engine runs. The breaker points control when the coil releases its stored energy, creating a spark. As the rotor turns, it lines up with the appropriate terminal in the cap that leads to the spark plug for the cylinder that’s firing, delivering the spark exactly where and when it’s needed. This is why the statement about sending the spark to the correct cylinder via a rotating finger and points is the correct description. The distributor doesn’t regulate fuel pressure, filter intake air, or cool the spark plugs—those tasks belong to the fuel system, air filtration, and cooling system, respectively.