Heavy Duty Diesel (Michigan SOS Test Study) 2
questions & ANSWERS 2024 ( A+ GRADED 100%
VERIFIED)
1.On a typical diesel subsystem, what system would most likely be used at the lowest
pressure when the engine is running?: Primary filter
2.Where is the secondary fuel filter usually located?: on the side of the transfer pump
3.Besides fue4l storage, the fuel tank may play an important role in a high-flow fuel
system as a:: Heat exchanger
4.What could be used to test the low-pressure side of a typical diesel fuel subsystem
for inlet restriction?: Negative pressure gauge
5.Which of the following should fuel subsystem charging pressures be measured
with?
a.) Diagnostic sight glass
b.) H20 manometer
c.) HG manometer
d.) Accurate pressure gauge: D
6. What type of fuel transfer pump is more commonly used by electronically
managed engine/fuel systems?: Gear pumps
7. What type of pumping principle is used by a typical hand primer pump?:
Single acting plunger
8. Charging pressure rise is usually directly related to what?: Increased RPM
9. What is the purpose of the air inlet system?: To provide clean air to engine and
optimize air flow
10. What is the function of the charge air cooler?: to lower the temperature of
incoming air before it enters the cylinders
11. Where does air flow begin?: Intake Air duct
12. What component increases the volume of air entering the engine? a.) Air filter
b.) Charge air cooler
c.) Turbocharger
d.) Throttle body: Turbocharger
13. What drives the turbocharger?: Hot expanding exhaust gases
14. What can reduce the possibility of turbocharger bearing damage?
questions & ANSWERS 2024 ( A+ GRADED 100%
VERIFIED)
1.On a typical diesel subsystem, what system would most likely be used at the lowest
pressure when the engine is running?: Primary filter
2.Where is the secondary fuel filter usually located?: on the side of the transfer pump
3.Besides fue4l storage, the fuel tank may play an important role in a high-flow fuel
system as a:: Heat exchanger
4.What could be used to test the low-pressure side of a typical diesel fuel subsystem
for inlet restriction?: Negative pressure gauge
5.Which of the following should fuel subsystem charging pressures be measured
with?
a.) Diagnostic sight glass
b.) H20 manometer
c.) HG manometer
d.) Accurate pressure gauge: D
6. What type of fuel transfer pump is more commonly used by electronically
managed engine/fuel systems?: Gear pumps
7. What type of pumping principle is used by a typical hand primer pump?:
Single acting plunger
8. Charging pressure rise is usually directly related to what?: Increased RPM
9. What is the purpose of the air inlet system?: To provide clean air to engine and
optimize air flow
10. What is the function of the charge air cooler?: to lower the temperature of
incoming air before it enters the cylinders
11. Where does air flow begin?: Intake Air duct
12. What component increases the volume of air entering the engine? a.) Air filter
b.) Charge air cooler
c.) Turbocharger
d.) Throttle body: Turbocharger
13. What drives the turbocharger?: Hot expanding exhaust gases
14. What can reduce the possibility of turbocharger bearing damage?
