Auto ch 12 Engine Repair Exam
Questions With Correct Answers
/. Technician A says that detergents keep oil from forming wax deposits under cold
temperatures. Technician B says that dispersants reduce carbon deposits on parts such
as piston rings and valves. Who is correct? - Answer-✅. Neither Technician A nor
Technician B
/.Acids form in engines as a result of: - Answer-✅. engine blow-by gases.
/.To prevent oil churning, some performance vehicles utilize a: - Answer-✅. windage
tray.
/.Too much oil in the engine: - Answer-✅. can cause engine oil foaming.
/.Technician A says that oil pressure is vital to engine operation. Technician B says that
a pressure sensor can turn on a light to alert the driver of low oil pressure. Who is
correct? - Answer-✅. Both Technician A and Technician B
/.Technician A says that magnets are used in some systems to attract metal particles
and hold them to be cleaned off. Technician B says that some manufacturers use
magnetic oil plugs that hold metal particles. Who is correct? - Answer-✅. Both
Technician A and Technician B
/.Technician A says that how long an engine lasts is directly related to how well it is
lubricated. Technician B says that the lubrication system helps cool the engine
components. Who is correct? - Answer-✅. Both Technician A and Technician B
/.The "W" in 5W-30 stands for: - Answer-✅. winter.
/.The strainer on the oil pickup tube is designed to: - Answer-✅. stop large particles of
debris from entering the oil pump
/.Technician A says that to ensure that the oil filter does not leak, you may use two
gaskets. Technician B says that using two gaskets could cause an oil leak when the oil
is pressurized. Who is correct? - Answer-✅. Technician B
/.The reason oil levels may be low can be all of the following, EXCEPT: - Answer-✅ oil
burning because of a clogged air filter.
Questions With Correct Answers
/. Technician A says that detergents keep oil from forming wax deposits under cold
temperatures. Technician B says that dispersants reduce carbon deposits on parts such
as piston rings and valves. Who is correct? - Answer-✅. Neither Technician A nor
Technician B
/.Acids form in engines as a result of: - Answer-✅. engine blow-by gases.
/.To prevent oil churning, some performance vehicles utilize a: - Answer-✅. windage
tray.
/.Too much oil in the engine: - Answer-✅. can cause engine oil foaming.
/.Technician A says that oil pressure is vital to engine operation. Technician B says that
a pressure sensor can turn on a light to alert the driver of low oil pressure. Who is
correct? - Answer-✅. Both Technician A and Technician B
/.Technician A says that magnets are used in some systems to attract metal particles
and hold them to be cleaned off. Technician B says that some manufacturers use
magnetic oil plugs that hold metal particles. Who is correct? - Answer-✅. Both
Technician A and Technician B
/.Technician A says that how long an engine lasts is directly related to how well it is
lubricated. Technician B says that the lubrication system helps cool the engine
components. Who is correct? - Answer-✅. Both Technician A and Technician B
/.The "W" in 5W-30 stands for: - Answer-✅. winter.
/.The strainer on the oil pickup tube is designed to: - Answer-✅. stop large particles of
debris from entering the oil pump
/.Technician A says that to ensure that the oil filter does not leak, you may use two
gaskets. Technician B says that using two gaskets could cause an oil leak when the oil
is pressurized. Who is correct? - Answer-✅. Technician B
/.The reason oil levels may be low can be all of the following, EXCEPT: - Answer-✅ oil
burning because of a clogged air filter.
