Technician A says that the majority of serpentine drive belt systems use a tensioner that needs to be adjusted by the technician at regular service intervals. Technician B says that a drive belt system that uses a V-type belt never needs adjusting. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

The A/C serpentine drive belt keeps jumping off its pulley whenever the A/C is turned on. Which is the most likely cause?

• A pulley or bracket is misaligned.

• The belt is made of the wrong material.

• The belt is too small.

• The belt is too old.

In order to drain the fluid on rear differentials without a drain plug, it may require the technician to remove the:

• axles

• inspection cover.

• driveshaft.

• housing.

When draining and refilling coolant in a vehicle, what needs to be done to ensure the coolant level is correct?

• Leave the drain plug loose as one fills the radiator.

• Drive the vehicle on the highway for 10 minutes.

• Add an extra quart of antifreeze to the overflow tank.

• Bring the engine up to operating temperature and bleed the excess air from the cooling system.

When replacing a drive belt on a V-8 engine equipped with a serpentine belt, which should also be checked?

• Tensioner

• Idler pulley

• Belt alignment

• All of the above

Technician A says all coolant leaks will be green. Technician B says coolant leaks could be a variety of colors. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

When inspecting an engine for a possible leak, the technician notices a green liquid dripping from the front of the engine. What type of fluid is most likely leaking?

A. B. C. D.

• Brake fluid

• Transmission fluid

• Coolant

• Engine oil

Two technicians are discussing engine oil leaks. Technician A says that an oil leak can be found by using an oil dye. Technician B says a tracing powder could be used to find a leak. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

Two technicians are discussing replacing a serpentine belt–driven water pump. Technician A states that valve timing will need to be adjusted during this procedure. Technician B states that the cooling system needs to be drained before removing the water pump. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

While replacing a water pump, which is not necessary?

• Cleaning both mating surfaces of any gasket material

• Always removing the radiator

• Cleaning bolt threads of any debris

• Making sure belt is tightened to the manufacturer's specifications