MDE 15 Q4

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Question 5:

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

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

A) Change the oil immediately after the first startup

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

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

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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?

D) Ignore the issue if performance is not affected

C) Refurbish or replace the liner

A) Adjust the engine’s operating parameters

B) Reinstall the liner without further changes

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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?

C) Reface the liner to bring it within tolerance

B) Recheck the measurement for accuracy

A) Replace the cylinder liner immediately

D) Ignore the deviation if it is minimal

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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?

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

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

A) To confirm that the engine is operating efficiently

C) To ensure that the fuel system is functioning correctly

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Question 5:

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

D) Measure the hardness of the liner material

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

A) Measure the liner’s length in different orientations

C) Inspect visually for color changes

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Question 4:

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

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

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

C) Using a bore gauge to measure the internal diameter

B) Using a dial gauge to check for ovality

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Question 1:

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

B) Inspect the liner for visible damage

D) Check the liner's wall thickness

C) Clean the liner thoroughly

A) Measure the liner's outer diameter

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Question 2:

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

D) Thickness gauge

C) Dial gauge

A) Vernier caliper

B) Micrometer

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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?

C) Radiator coolant level

B) Fuel injection timing

A) Air filter condition

D) Exhaust system alignment

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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

B) Engine temperature

A) Fuel consumption

C) Exhaust smoke color

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Question 3:

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

A) Coolant system lubrication

B) Hydraulic system lubrication

D) Transmission oil lubrication

C) Engine oil lubrication

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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?

D) Operate the engine at a lower temperature than normal

C) Ensure the engine runs at maximum load

B) Apply high pressure to the cylinder liner

A) Increase the engine speed gradually

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