6: Engine Fundamentals and Design

Who issues technical service bulletins?

• dealerships

• manufacturers

• ASE

• Parts stores

Which part is the cylinder head bolted to?

• the crankshaft

• the block

• the oil pan

• the valve body

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

• 25:75

• 50:50

• 75:25

• 100% coolant

Which material are new model cylinder heads made from?

• aluminum

• copper

• magnesium

• silver

The orange cables on hybrid cars indicate what?

• ABS wires

• electronic wires

• high-voltage wires

• low-voltage wires

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

• thermostat

• valve stem seals

• oil pan gasket

• 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 only

• B only

• Both A and B

• 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 only

• B only

• Both A and B

• Neither A nor B

When changing the engine oil, what should the temperature of the engine be?

• cold

• iced

• scalding

• warm

Where would an engine thermostat most likely be found?

• at the engine end of the upper radiator hose

• at the radiator end of the upper heater hose

• at the engine end of the lower heater hose

• at the radiator end of the lower radiator hose