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?

Select one:

Which of the following statements is correct concerning fuel tank ventilation?

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A fuel tank pickup tube works by means of __________.

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Technician A says that fuel-water separators, water-in-fuel sensors, fuel heaters, and filters are often integrated into a single compact unit. Technician B says that water-in-fuel (WIF) sensors use an electrical conductivity probe to sense a specific level of water in fuel and cause a dash-mounted light to illuminate. Who is correct?

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Which of the following statements is correct with regard to priming fuel systems?

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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. Who is correct?

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Which acronym is associated with Detroit Diesels diagnostic software system?

All of the following are functions of the low-pressure fuel system, EXCEPT __________.

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

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