Low Pressure Fuel Systems

Front

At too low of a temperature, the __________ in fuel becomes too viscous to properly flow through filters and lines.

Back

Paraffin

Front

Technician A says that low diesel fuel temperature causes problems, but high fuel temperatures are not a problem. Technician B says that both low and high fuel temperature can cause problems with diesel fuel. Who is correct?

Back

Technician B is correct.

Front

Which of the following statements is correct concerning fuel tank ventilation? Require some ventilation to the atmosphere, Must be completely sealed, Both A & B, Neither A or B

Back

Require some ventilation to the atmosphere

Front

A fuel tank pickup tube works by means of __________.

Back

Venturi Effect

Front

Who is correct regarding fuel-water separators, water-in-fuel sensors, fuel heaters, and filters being integrated into a single compact unit and the function of water-in-fuel sensors?

Back

Both

Front

Which of the following statements is correct with regard to priming fuel systems? A fuel system should be primed whenever fuel filters are replaced.

Back

A fuel system should be primed whenever fuel filters are replaced.

Front

Who is correct regarding the statements about mechanical diaphragm pumps and check valves? Technician A says that deteriorated check valves can effect outlet pressure of a mechanical diaphragm pump. Technician B says the diaphragm pumps are not used in diesel engine fuel systems.

Back

Technician A is correct.

Front

Which acronym is associated with Detroit Diesels diagnostic software system?

Back

DDDL

Front

All of the following are functions of the low-pressure fuel system, EXCEPT __________. a. Store and supply an adequate volume of clean fuel, b.Prevent wax gelling, c.Regulate fuel temperature, d.Inject fuel into the combustion chamber

Back

Inject fuel into the combustion chamber

Front

Low-pressure fuel systems include features to inform the operator of _________________.

Back

Fuel tank level