MDE 15 Q4

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Question 6:

What should be checked and adjusted if necessary during the initial startup of an engine with a new liner?

B) Fuel injection timing

D) Exhaust system alignment

A) Air filter condition

C) Radiator coolant level

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Question 2:

During the initial startup of an engine with a new liner, what is important to check frequently?

D) Oil pressure and temperature

A) Fuel consumption

B) Engine temperature

C) Exhaust smoke color

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Question 6:

If a cylinder liner is found to be out of specification after calibration, what is a typical corrective action?

A) Adjust the engine’s operating parameters

D) Ignore the issue if performance is not affected

B) Reinstall the liner without further changes

C) Refurbish or replace the liner

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Question 5:

What is a recommended practice for the first engine oil change after installing a new cylinder liner?

B) Wait until the engine has run for a specified number of hours before changing the oil

A) Change the oil immediately after the first startup

D) Skip the initial oil change if the oil looks clean

C) Perform the oil change at the end of the first day of operation

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Question 4:

Which calibration technique is used to measure the wall thickness of a cylinder liner?

C) Using a bore gauge to measure the internal diameter

D) Using a caliper to measure the total length of the liner

A) Using a micrometer to measure the outer and inner diameters

B) Using a dial gauge to check for ovality

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Question 1:

What is the primary precaution to take during the initial startup of an engine with a new cylinder liner to ensure proper seating?

C) Ensure the engine runs at maximum load

B) Apply high pressure to the cylinder liner

A) Increase the engine speed gradually

D) Operate the engine at a lower temperature than normal

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Question 3:

What should be checked if the inner diameter of the cylinder liner is found to be out of tolerance during calibration?

B) Recheck the measurement for accuracy

A) Replace the cylinder liner immediately

D) Ignore the deviation if it is minimal

C) Reface the liner to bring it within tolerance

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Question 3:

Which type of lubrication is critical to verify before starting an engine with a new cylinder liner?

B) Hydraulic system lubrication

A) Coolant system lubrication

D) Transmission oil lubrication

C) Engine oil lubrication

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Question 1:

What is the first step in calibrating a removed diesel engine cylinder liner?

C) Clean the liner thoroughly

A) Measure the liner's outer diameter

B) Inspect the liner for visible damage

D) Check the liner's wall thickness

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Question 5:

What is a common method to check for warping or distortion in a cylinder liner during calibration?

A) Measure the liner’s length in different orientations

C) Inspect visually for color changes

D) Measure the hardness of the liner material

B) Use a dial gauge to measure any deviations from the cylindrical shape

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Question 4:

Why is it important to check for any unusual noises during the initial startup of an engine with a new liner?

B) To detect any potential misalignment or improper fitting of components

C) To ensure that the fuel system is functioning correctly

A) To confirm that the engine is operating efficiently

D) To verify that the engine is operating at full power

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Question 2:

When measuring the outer diameter of a cylinder liner for calibration, which tool is most appropriate?

C) Dial gauge

A) Vernier caliper

B) Micrometer

D) Thickness gauge

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