Engine Test

Who issues technical service bulletins?

• A. dealerships

• B. manufacturers

• C. ASE

• D. Parts stores

Which part is the cylinder head bolted to?

• A. the crankshaft

• B. the block

• C. the oil pan

• D. the valve body

What is the ratio of coolant to water in a typical automotive cooling system?

• A. 25:75

• B. 50:50

• C. 75:25

• D. 100% coolant

The orange cables on hybrid cars indicate what?

• A. ABS wires

• B. electronic wires

• C. high-voltage wires

• D. low-voltage wires

Which material are new model cylinder heads made from?

• A. aluminum

• B. copper

• c. magnesium

• D. silver

If blue smoke is seen at the tailpipe when an engine is started, which part(s) is/are most likely worn out?

• A. thermostat

• B. valve stem seals

• C. oil pan gasket

• D. timing chain

Technician A says a water pump controls the flow of coolant through an engine. Technician B says an oil filter controls the flow of oil through an engine. Who is right?

• A. A only

• B. B only

• C. Both A and B

• D. Neither A nor B

Technician A says that all vehicles use the same oil viscosity. Technician B says that using the wrong viscosity oil can damage an engine. Which is right?

• A. A only

• B. B only

• C. Both A and B

• D. Neither A and B

If the coolant recovery tank has a hole in it, which is the proper fix?

• A. Add stop leak.

• B. Do nothing; this is a system vent.

• C. Replace the tank.

• D. Plastic weld the hole closed.

Where would an engine thermostat most likely be found?

• A. at the engine end of the upper radiator hose

• B. at the radiator end of the upper heater hose

• C. at the engine end of the lower heater hose

• D. at the radiator end of the lower radiator hose