©THEBRIGHTSTARS 2024
ASE G1 MLR Exam Questions With Correct
Answers
The automotive repair process is a 6 step process. What is the last step? - answer✔✔Verify the
Repair
A vehicle comes in the shop with an engine noise. What should be done first? -
answer✔✔Discuss the noise with the customer
A spark ignition engine has a flapping sound near the front. Which of the following could be the
cause? - answer✔✔Loose timing belt
A tight timing belt makes what type of noise? - answer✔✔Whining Sound
An orange colored liquid is found under the front of the engine. What is leaking? -
answer✔✔coolant
There is blue fluid beneath the vehicle. The fluid is most likely - answer✔✔Windshield washer
fluid
What type of diesel fuel is critical to DEF systems? - answer✔✔Ultra low sulfur diesel
The DEF is added at what loation on a light duty diesel powered vehicle? - answer✔✔A fitting
near the fuel door
2 Techs are discussing DEF. A says it is acceptable to add water to the DEF. B says you can use
a refractormeter to measure the density and quality of the DEF. Who is correct? - answer✔✔B
Only
2 Techs are discussing engine coolant. A says a week solution of antifreeze will cause corrosion
build up. B says some manufacturers recommend coolant be changed at specified intervals. Who
is correct? - answer✔✔Both A and B
When flushing and refilling a cooling system, all of the following steps are necessary, EXCEPT:
- answer✔✔Mixing tap water and distilled water
What tool is used to measure engine coolant freeze protection? - answer✔✔Hydrometer
Tech A Says to replace the engine coolant thermostat once a year.
, ©THEBRIGHTSTARS 2024
Tech B Says the lower radiator hose contains a spring to prevent it from collapsing and causing a
restriction. Who is Right? - answer✔✔B Only
The engine water pump is going to be replaced. Which of the following is done as a part of that
repair process? - answer✔✔Drain the coolant below the water pump level
The figure shows a belt tensioner with 4 lines, which indicate proper belt tension, wear, or the
need for replacement. Tech A says when a new belt is installed, the three line marks close to
each other should be positioned as shown. Tech B says to always check the onlineservice
information for belt wear indicators. Who is correct? - answer✔✔B Only
Two Technicians are explaining radiator cap service. Tech A says a radiator cap is tested using a
coolant system pressure tester. Tech B says when the cap does not hold enough pressure you can
replace the cap gasket. Who is correct? - answer✔✔A Only
Tech A says you should inspect all types of fan blades for stress fractures. Tech B says if there
are signs of silicone residue at the viscous fan clutch it must be replaced. Who is correct? -
answer✔✔A Only
An engine has an oil leak at the valve cover. The technician has replaced the valve cover gasket
but the oil still leaks out. What is the most likely cause.? - answer✔✔Stuck PCV Valve
Two Technicians are describing the replacement of a thermostat. Tech A says the upper hose
should be removed from the thermostat housing neck then you remove the housing to replace the
thermostat. Tech B says on some applications you remove the radiator pressure cap and install a
new thermostat into the top of the radiator. Who is correct? - answer✔✔Both A and B
Two technicians are discussing an oil change. Tech A says synthetic oils provide a safe way to
exceed the manufactures recommended oil change intervals. Tech B says to consult the online
service information or the owners manual for the correct viscosity and amount of oil. Who is
right? - answer✔✔B only
All of the following are done when checking secondary ignition components during ignition
system maintenance, EXCEPT - answer✔✔Do a voltage drop across coil terminals
The throttle body is being serviced on a fuel injected engine. Tech A says to check for gasoline
at the vacuum port of the fuel-pressure regulator. Tech B says to check for carbon deposits at the
throttle plate. Who is correct? - answer✔✔Both A and B
Which diagnostic tool plugs into the DLC(Data Link Connector) to allow the technician to read
DTC's (Diagnostic Trouble Codes)? - answer✔✔Both Scan Tool and Lap top Computer
When replacing an air filter, the technician should: - answer✔✔Make sure dirt does not fall into
the opening
ASE G1 MLR Exam Questions With Correct
Answers
The automotive repair process is a 6 step process. What is the last step? - answer✔✔Verify the
Repair
A vehicle comes in the shop with an engine noise. What should be done first? -
answer✔✔Discuss the noise with the customer
A spark ignition engine has a flapping sound near the front. Which of the following could be the
cause? - answer✔✔Loose timing belt
A tight timing belt makes what type of noise? - answer✔✔Whining Sound
An orange colored liquid is found under the front of the engine. What is leaking? -
answer✔✔coolant
There is blue fluid beneath the vehicle. The fluid is most likely - answer✔✔Windshield washer
fluid
What type of diesel fuel is critical to DEF systems? - answer✔✔Ultra low sulfur diesel
The DEF is added at what loation on a light duty diesel powered vehicle? - answer✔✔A fitting
near the fuel door
2 Techs are discussing DEF. A says it is acceptable to add water to the DEF. B says you can use
a refractormeter to measure the density and quality of the DEF. Who is correct? - answer✔✔B
Only
2 Techs are discussing engine coolant. A says a week solution of antifreeze will cause corrosion
build up. B says some manufacturers recommend coolant be changed at specified intervals. Who
is correct? - answer✔✔Both A and B
When flushing and refilling a cooling system, all of the following steps are necessary, EXCEPT:
- answer✔✔Mixing tap water and distilled water
What tool is used to measure engine coolant freeze protection? - answer✔✔Hydrometer
Tech A Says to replace the engine coolant thermostat once a year.
, ©THEBRIGHTSTARS 2024
Tech B Says the lower radiator hose contains a spring to prevent it from collapsing and causing a
restriction. Who is Right? - answer✔✔B Only
The engine water pump is going to be replaced. Which of the following is done as a part of that
repair process? - answer✔✔Drain the coolant below the water pump level
The figure shows a belt tensioner with 4 lines, which indicate proper belt tension, wear, or the
need for replacement. Tech A says when a new belt is installed, the three line marks close to
each other should be positioned as shown. Tech B says to always check the onlineservice
information for belt wear indicators. Who is correct? - answer✔✔B Only
Two Technicians are explaining radiator cap service. Tech A says a radiator cap is tested using a
coolant system pressure tester. Tech B says when the cap does not hold enough pressure you can
replace the cap gasket. Who is correct? - answer✔✔A Only
Tech A says you should inspect all types of fan blades for stress fractures. Tech B says if there
are signs of silicone residue at the viscous fan clutch it must be replaced. Who is correct? -
answer✔✔A Only
An engine has an oil leak at the valve cover. The technician has replaced the valve cover gasket
but the oil still leaks out. What is the most likely cause.? - answer✔✔Stuck PCV Valve
Two Technicians are describing the replacement of a thermostat. Tech A says the upper hose
should be removed from the thermostat housing neck then you remove the housing to replace the
thermostat. Tech B says on some applications you remove the radiator pressure cap and install a
new thermostat into the top of the radiator. Who is correct? - answer✔✔Both A and B
Two technicians are discussing an oil change. Tech A says synthetic oils provide a safe way to
exceed the manufactures recommended oil change intervals. Tech B says to consult the online
service information or the owners manual for the correct viscosity and amount of oil. Who is
right? - answer✔✔B only
All of the following are done when checking secondary ignition components during ignition
system maintenance, EXCEPT - answer✔✔Do a voltage drop across coil terminals
The throttle body is being serviced on a fuel injected engine. Tech A says to check for gasoline
at the vacuum port of the fuel-pressure regulator. Tech B says to check for carbon deposits at the
throttle plate. Who is correct? - answer✔✔Both A and B
Which diagnostic tool plugs into the DLC(Data Link Connector) to allow the technician to read
DTC's (Diagnostic Trouble Codes)? - answer✔✔Both Scan Tool and Lap top Computer
When replacing an air filter, the technician should: - answer✔✔Make sure dirt does not fall into
the opening
