Fundamental of Common Rail Diesel Fuel System

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