MDE 15 Q5

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Question 2:

What is a common sign of piston ring wear that can be observed during inspection?

B) Excessive oil consumption

C) Scoring on the piston surface

A) Cracking in the cylinder liner

D) Loose connecting rod bolts

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Question 4:

During piston inspection, what fault might be indicated by scoring on the piston skirts?

D) Faulty ignition system

B) Insufficient oil supply

A) Incorrect valve timing

C) Worn cylinder liner

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Question 3:

Which tool is commonly used to measure the wear of the cylinder liner?

A) Vernier caliper

C) Dial indicator

B) Micrometer gauge

D) Bore gauge

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Question 7:

What is a potential fault to look for on a piston during inspection that may affect engine compression?

D) Faulty fuel injectors

C) Bent push rods

B) Worn piston rings or ring lands

A) Cracked cylinder head

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Question 3:

If a cylinder liner shows signs of excessive taper, what does this indicate?

A) Normal wear

C) Uneven wear due to poor lubrication

D) Faulty turbocharger

B) Overheating issues

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Question 1:

When inspecting a cylinder liner after removing the piston, which of the following should be checked for wear or damage?

B) Cylinder liner surface

C) Piston pins

D) Crankshaft bearings

A) Piston rings

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Question 4:

What should be done if scoring is found on the cylinder liner during inspection?

C) Replace the cylinder liner or recondition it

A) Continue using the engine without any changes

D) Ignore it if the scoring is minor

B) Polish the scoring to smooth it out

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Question 5:

What fault in a piston pin can cause operational issues in a diesel engine?

B) Excessive clearance or wear

C) Misalignment with the crankshaft

A) Incorrect piston pin length

D) Rust on the surface

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Question 1:

Which of the following is a common fault that can be found on a cylinder liner during inspection?

A) Piston ring land wear

D) Camshaft wear

B) Cylinder liner scoring or scratches

C) Connecting rod bending

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Question 6:

What fault might be detected in a cylinder liner that suggests coolant leakage?

B) Deposits of carbon on the piston crown

C) Darkened oil with a milky appearance

D) Cracked piston rings

A) Corrosion on the exterior of the liner

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Question 6:

What is a common procedure to check the piston for proper fit in the cylinder liner?

C) Inspect the piston for carbon deposits

D) Measure the piston crown temperature

B) Check piston for free play in the liner

A) Measure piston ring gap

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Question 2:

What is a typical fault observed on a piston that might indicate engine problems?

C) Bent push rods

B) Worn piston rings

D) Damaged valve seats

A) Crankshaft endplay

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Question 7:

What should be examined on the piston pins during inspection?

B) Wear and clearance

A) Length and thickness

C) Surface color and finish

D) Thread condition

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Question 5:

During the inspection of the piston, what should be checked for proper condition?

C) Valve seats

B) Crankshaft journals

A) Piston skirts

D) Flywheel condition

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