1. A tachometer measures:
a. the total number of miles/kilometers on your car.
b. oil pressure.
c. gasoline level.
d. engine revolutions per minute.

2. What is the main purpose of the alternator?
a. to regulate the speed of the car
b. to keep the engine cool.
c. to maintain constant oil pressure.
d. to power the car’s electrical system.

Relax

Respuesta :

The answer for the first question is : D )  engine revolutions per minute.

The answer for the second question is : D ) 
to power the car’s electrical system.

-Hope this helps.