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WorksheetsFundamental of Common Rail Diesel Fuel System
Total questions: 15
Worksheet time: 8mins
Which is the Injectors commonly cooled by?
A. Air
B. Fuel
C. Coolant
D. Engine oil
What is the function of sedimenter?
A. To filter diesel fumes
B. To reduce soot and HC emissions
C. To remove excess water from the diesel fuel
D. To filter carbon particles the diesel fuel passing through it
What are some of the hazards associated with common-rail diesel systems?
A. Diesel fumes
B. High pressure fuel injection
C. High working temperature engine
D. High emission of combustion bi-product
What is the pressure level can produce by Common-rail fuel systems?
A. 1350 bar
B. 1300 PSI
C. 1300 kPa
D. 1300 hPa
Which component usually built in with the sedimenter in diesel engine system?
A. Fuel tank
B. Fuel rail
C. Fuel filter
D. High pressure pump
What is the voltages use by Injectors for common-rail systems during operating?
A. 24 volts
B. 110 volts
C. 240 volts
D. 415 volts, 3-phase
What are the consequences if fuel rail pressure valve control fails?
A. Engine knock will increase
B. Engine will suffer erratic idling
C. Engine will stop and will not start
D. Engine will jerk and stop operation
Where the location of the flow limiter on a common-rail fuel-delivery system?
A. The rail and the injector pipes
B. The inlet filter and the feed pump
C. The fuel-injection pump and the rail
D. The feed pump and the high-pressure pump
Electronic diesel control systems use a system with no accelerator cable or linkage.
Which referred to this statement?
A. Drive-by-Wire
B. Drive-by-Road
C. Traction Control
D. Tramline Connections
Which of the following is providing control signal in common rail system?
A. ECU
B. Air mass meter
C. Accelerator pedal sensor
D. High-pressure accumulator
Which is a common rail in the system acts as?
A. Accumulator
B. Fuel delivery
C. Fuel distribution
D. Pressure regulator
During at the idling speed, a technician detected an erratic idling speed symptom.
What are the possible causes of erratic idling symptom?
A. Fuses/relay systems
B. Throttle potentiometer
C. Coolant level sensor problems.
D. Insufficient diesel fuel pressure
What are the advantages of common rail diesel injector over conventional diesel injector in terms of fuel consumption?
A. Atomized fuel spray
B. Better fuel spray pattern
C. Low voltage requirement for injector to operate
D. No heater plug requires to ignites fuel combustion
Which are the components of Diesel Common Rail System?
Please identify the condition fuel pressure in the Common Rail Fuel System.
A - Low Pressure, B - Low Pressure, C - High Pressure, D - High Pressure
A - Low Pressure, B - High Pressure, C - High Pressure, D - Low Pressure
A - High Pressure, B - High Pressure, C - Low Pressure, D - Low Pressure
A - High Pressure, B - Low Pressure, C - Low Pressure, D - High Pressure
