Auto Final Exam Questions and Answers
100% Pass
which part is the cylinder head bolted to? ✔✔the block
What is the ratio of coolant to water in a typical automotive cooling system? ✔✔50:50
Which material are new model cylinder heads made from? ✔✔aluminum
Who issues technical service bulletins? ✔✔manufacturers
If blue smoke is seen at the tailpipe when an engine is started, which part(s) is/are most likely
worn out? ✔✔valve stem seals
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? ✔✔neither
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? ✔✔technician b
Where would an engine thermostat most likely be found? ✔✔at the engine end of the upper
radiator hose
If the coolant recovery tank has a hole in it, which is the proper fix? ✔✔replace the tank
Which item is designed to keep engine valves closed? ✔✔spring/return spring
When changing the engine oil, what should the temperature of the engine be? ✔✔warm
, What is the minimum recommended time to drain an oil filter before discarding? ✔✔12 hours
minimum but usually 24 hours
What is a safety concern when servicing the internal combustion engine of a hybrid vehicle?
✔✔High voltage/electrocution
Which is the necessary procedure when the heater core is leaking coolant? ✔✔Remove and
replace the heater core
Which part in the cooling system controls the flow of coolant? ✔✔thermostat
A green liquid is found under the front of a vehicle. Which fluid is most likely leaking?
✔✔antifreeze
When working on a hybrid vehicle, how many volts should the protective gloves be rated to
handle? ✔✔1000 volts
When a technician is changing the oil, what should remain on the old filter? ✔✔Square seal
stays on, round rubber seal comes off
Which part below keeps the engine from overheating? ✔✔water pump
How many vehicles have the same VIN? ✔✔none
Which engine part does the camshaft move to open cylinder valves? ✔✔lifters
Which manual has an area to write service history in it? ✔✔owner's manual
Some radiators have two heat exchangers, one for the engine and one for the: ✔✔transmission
100% Pass
which part is the cylinder head bolted to? ✔✔the block
What is the ratio of coolant to water in a typical automotive cooling system? ✔✔50:50
Which material are new model cylinder heads made from? ✔✔aluminum
Who issues technical service bulletins? ✔✔manufacturers
If blue smoke is seen at the tailpipe when an engine is started, which part(s) is/are most likely
worn out? ✔✔valve stem seals
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? ✔✔neither
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? ✔✔technician b
Where would an engine thermostat most likely be found? ✔✔at the engine end of the upper
radiator hose
If the coolant recovery tank has a hole in it, which is the proper fix? ✔✔replace the tank
Which item is designed to keep engine valves closed? ✔✔spring/return spring
When changing the engine oil, what should the temperature of the engine be? ✔✔warm
, What is the minimum recommended time to drain an oil filter before discarding? ✔✔12 hours
minimum but usually 24 hours
What is a safety concern when servicing the internal combustion engine of a hybrid vehicle?
✔✔High voltage/electrocution
Which is the necessary procedure when the heater core is leaking coolant? ✔✔Remove and
replace the heater core
Which part in the cooling system controls the flow of coolant? ✔✔thermostat
A green liquid is found under the front of a vehicle. Which fluid is most likely leaking?
✔✔antifreeze
When working on a hybrid vehicle, how many volts should the protective gloves be rated to
handle? ✔✔1000 volts
When a technician is changing the oil, what should remain on the old filter? ✔✔Square seal
stays on, round rubber seal comes off
Which part below keeps the engine from overheating? ✔✔water pump
How many vehicles have the same VIN? ✔✔none
Which engine part does the camshaft move to open cylinder valves? ✔✔lifters
Which manual has an area to write service history in it? ✔✔owner's manual
Some radiators have two heat exchangers, one for the engine and one for the: ✔✔transmission
