1-19 of 19
During maintenance pre-check, the service technician finds the oil level in the engine to
be overfull. What could cause this condition?
Question 12 options:
Diesel fuel contamination
Overfill during a previous service
A leaking cooling system
Any of the above
Any of the above
Before the valves are removed from the cylinder head, what operations need to be
completed?
Question 16 options:
,Remove burrs from the stem of the valve(s)
Remove valve keepers (locks)
Remove cylinder head(s) from the engine
All of the above
All of the above
B20 biodiesel has how much regular diesel fuel?
Question 7 options:
100 percent
40 percent
20 percent
80 percent
80 percent
An engine is manufactured with cracked joint (fractured) connecting rods. What action
should the technician take?
Question 18 options:
The rods cannot be reused
The fractured surface must be machined flat
The rod cap must stay paired with the rod
None of these
, The rod cap must stay paired with the rod
The service technician is replacing the fuel filters on a light-duty diesel vehicle and the
vehicle fails to restart after the task is completed. What is the most likely cause?
Question 13 options:
The vehicle has the wrong fuel in the tank for the season.
The service procedure was not followed correctly and excessive air is in the system.
The filters were installed incorrectly, blocking the flow of fuel to the engine.
The vehicle is out of fuel and must be refilled.
The service procedure was not followed correctly and excessive air is in the
system.
What clogs fuel filters when the temperature is low on a vehicle that uses diesel fuel?
Question 5 options:
Wax
Sulfur
Cetane
Alcohol
Wax
, During the service of a light-duty diesel vehicle, the service technician finds the water-in-
fuel (WIF) indicator illuminated. How should this condition be resolved?
Question 14 options:
Drain the water separator.
Replace the water separator.
Replace the fuel filters.
Reset the indicator light with the scan tool.
Drain the water separator.
Engine oil rated as CJ-4 is used in late model diesel engines because it has a low ________
content.
Question 15 options:
Ash
Heat
Viscosity
Sulfur
Ash
The higher the cetane rating, the ________.
Question 9 options:
Easier the engine starts when cold
Easier the engine starts when hot
During maintenance pre-check, the service technician finds the oil level in the engine to
be overfull. What could cause this condition?
Question 12 options:
Diesel fuel contamination
Overfill during a previous service
A leaking cooling system
Any of the above
Any of the above
Before the valves are removed from the cylinder head, what operations need to be
completed?
Question 16 options:
,Remove burrs from the stem of the valve(s)
Remove valve keepers (locks)
Remove cylinder head(s) from the engine
All of the above
All of the above
B20 biodiesel has how much regular diesel fuel?
Question 7 options:
100 percent
40 percent
20 percent
80 percent
80 percent
An engine is manufactured with cracked joint (fractured) connecting rods. What action
should the technician take?
Question 18 options:
The rods cannot be reused
The fractured surface must be machined flat
The rod cap must stay paired with the rod
None of these
, The rod cap must stay paired with the rod
The service technician is replacing the fuel filters on a light-duty diesel vehicle and the
vehicle fails to restart after the task is completed. What is the most likely cause?
Question 13 options:
The vehicle has the wrong fuel in the tank for the season.
The service procedure was not followed correctly and excessive air is in the system.
The filters were installed incorrectly, blocking the flow of fuel to the engine.
The vehicle is out of fuel and must be refilled.
The service procedure was not followed correctly and excessive air is in the
system.
What clogs fuel filters when the temperature is low on a vehicle that uses diesel fuel?
Question 5 options:
Wax
Sulfur
Cetane
Alcohol
Wax
, During the service of a light-duty diesel vehicle, the service technician finds the water-in-
fuel (WIF) indicator illuminated. How should this condition be resolved?
Question 14 options:
Drain the water separator.
Replace the water separator.
Replace the fuel filters.
Reset the indicator light with the scan tool.
Drain the water separator.
Engine oil rated as CJ-4 is used in late model diesel engines because it has a low ________
content.
Question 15 options:
Ash
Heat
Viscosity
Sulfur
Ash
The higher the cetane rating, the ________.
Question 9 options:
Easier the engine starts when cold
Easier the engine starts when hot
