Exam 10: Engine Lubrication Systems

Which of the following diesel engine oil grades would function best in subarctic temperature conditions?

What type of oil pressure sensor is most commonly used on current electronically managed diesel engines?

When an oil sample analysis indicates elevated levels of silicon, which of the following should be inspected first?

Which of the following is an undesirable constituent of engine oil?

Which organization classifies all engine oils sold in North America?

Which type of oil cooler is said to possess the highest cooling efficiency in diesel engines?

What type of engine oil pump is most commonly used on truck diesel engines?

Which organization grades engine oils by viscosity?

In which of the following applications is the use of a synthetic engine oil especially recommended?

Which of the following values would be typical of engine oil at operating temperature?

Technician A says that engine lube analyses can be performed in truck service facilities with the advantage of producing immediate results. Technician B says that spectrographic analysis of engine lube is usually performed in a laboratory . Who is correct?

What is a common indicator that engine oil has become contaminated with diesel fuel?

A filter that operates by forcing all of the engine oil it receives through the filtering media is known as:

What type of filter is normally located in series immediately downstream from the oil pump?

Which of the following diesel engine operating conditions is more likely to result in cold sludging?

Technician A says that highway diesel engines equipped with DPF should use a lube oil formulated to meet the API CJ-4 classification or later. Technician B says that FA-4 oil is backward compatible with all previous generations of diesel engine lube oils. Who is correct?

Technician A says that most engine OEMs recommend priming full flow oil filters following an oil change. Technician B says that failure to prime a full flow oil filter following engine lube service may damage the turbocharger when the engine is started. Who is correct?

What should be used to check gear side clearance when overhauling an oil pump?

If a diesel engine is equipped with a diesel particulate filter (DPF) which of the following lube oil classifications is recommended?

The temperature at which an engine oil begins to gel is known as: