Which of the following will NOT occur from setting a spark plug gap wider?
Answer(s): A
Setting a spark plug gap narrower can result in a smaller weaker spark. Setting it wider may result in a bigger spark, better combustion but a potential misfire.
What should you do if your temperature gauge on your car indicates that the car is overheating (in the red zone)?
Answer(s): D
You should immediately pull over and let the car cool down.
Which of the following can cause water sludge in engine crankcase oil?
Water condensation in the crankcase is a leading cause of oil sludge. Changing your oil frequently and using synthetic oil can help eliminate sludge.
Which of the following components prevents a car's battery from being overcharged?
Answer(s): B
The voltage regulator controls the current that is sent to the battery to prevent overcharging.
Which of the following is probably NOT a cause of an engine overheating?
Answer(s): C
A faulty thermostat, inoperative fan motor and external coolant leaks can all cause an engine to overheat.
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