Answers 100% Correct
Technician A says that oil should be squirted into all the cylinders before taking a
compression test. Technician B says that if the compression greatly increases when
some oil is squirted in the cylinders, it indicates defective or worn piston rings.
Technician A
Technician B
Both technicians
Neither technician - Answer- Technician B
During a cylinder leakage (leak-down) test, air is noticed coming out of the oil fill
opening. Technician A says that the oil filter my be logged. Technician B says that the
piston rings may be worn or defective. Which technician is correct?
Technician A
Technician B
Both A and B
Neither A nor B - Answer- Technician B
Leaking antifreeze can be what color?
Green
Orange
Red
Any of the above - Answer- Any of the above
Coolant should be tested for ________.
Proper color
Freezing point (temperature)
Specific Gravity
Both b and c - Answer- Both b and c
Two technicians are discussing a compression test. Technician A says that the engine
should be cranked over with the pressure gauge installed for "4 puffs." Technician B
says that the maximum difference between the highest reading cylinder and the lowest
reading cylinder should be 20%. Which technician is correct?
Technician A only
Technician b only
Both Technician A and B
Neither technician a nor b - Answer- Both technician a and b
, What precautions are needed to be performed to help prevent air from getting trapped
in the cooling system when replacing coolant?
Use the proper antifreeze as specified
Open bleeder valves during filling
Use premixed coolant
Wear protective gloves - Answer- Open bleeder valves during filling
When replacing a water pump, be sure to _____________
Torque all fasteners to factory specifications
Use a new gasket/seal
Check that the accessory drive belt is properly aligned and adjusted to the proper
tension
All of the above - Answer- All of the above
When using a scan tool to retrieve diagnostic trouble codes (DTCs) the technician
should also _________
Check monitor status
Check freeze frame data
Record any stored DTCs
All of the above - Answer- All of the above
When replacing an external fuel filter, best practices include ________________
Use the same brand as the original as the replacement filter
Reuse the filter after cleaning
Relieve fuel system pressure before removing the fuel line connections
Tighten fasteners as tight as possible - Answer- Relieve fuel system pressure before
removing the fuel line connections
Before road testing a vehicle to determine if the automatic transmission is performing
normally, which should be performed?
Check for any stored diagnostic trouble codes
Check the fluid level
Check the fluid condition and color
All of the above - Answer- Check for any stored diagnostic trouble codes
Automatic transmission cooling lines are located ___________
Between the transmission and the radiator
Between the transmission and the rear axle
Inside the transmission or transaxle