MDE 20 Q1

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Question 5:
What fault might be observed if gear teeth exhibit a jagged, uneven surface?

B) Gear tooth spalling

C) Gear tooth chipping

A) Gear tooth wear

D) Gear tooth flaking

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Question 7:
What action should be taken if abnormal noise is detected during a gearbox inspection?

A) Continue operation until the next scheduled maintenance

C) Investigate and repair the source of the noise

B) Increase the operating speed to see if the noise persists

D) Replace the gearbox immediately

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Question 2:
Which of the following is a common visual inspection technique used for a gearbox?

C) Inspecting for oil leaks and contamination

A) Checking the oil level

D) Adjusting the gear mesh

B) Measuring the temperature of the gearbox

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Question 1:
What is the primary purpose of inspecting a gearbox?

C) To clean the external components of the gearbox

A) To ensure the gearbox is properly lubricated

B) To verify the alignment and condition of the gears

D) To adjust the gearbox's operational speed

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Question 1:
Which of the following is a common cause of gear tooth pitting?

A) Excessive load and poor lubrication

B) Incorrect gear mesh alignment

C) Overheating due to high ambient temperatures

D) Improper gear tooth design

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Question 5:
What should be checked to assess the condition of the gearbox bearings during an inspection?

A) Bearing temperature and noise levels

B) Gear lubrication viscosity

C) Gear alignment

D) Oil color and smell

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Question 4:
What tool is often used to measure the backlash in a gearbox?

A) Micrometer

D) Tachometer

B) Dial gauge

C) Thermometer

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Question 2:
What is a typical sign of gear tooth scuffing?

A) Uniform wear across the gear teeth

B) Presence of cracks and chips on the gear surface

D) Excessive play between meshing gears

C) Rough, burnt appearance on the gear teeth

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Question 4:
What is a common result of gear tooth wear due to improper lubrication?

A) Gear tooth scuffing

D) Gear tooth pitting

B) Gear tooth cracking

C) Gear tooth chipping

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Question 6:
Which of the following is a potential cause of gear tooth flaking?

B) Over-lubrication

C) Misalignment of gear shafts

D) Gear tooth pitting

A) Inadequate gear surface hardening

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Question 6:
Which of the following is a sign of gear tooth damage that should be noted during a gearbox inspection?

B) Cracks or chips on the gear teeth

A) Rust on the external surface

D) Excessive vibration during operation

C) Discoloration of the gearbox oil

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Question 3:
During a gearbox inspection, which component should be checked for excessive wear?

D) Oil filter

B) Input shaft bearing

C) Gearbox housing

A) Gear teeth

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Question 3:
Which fault is indicated by visible cracks on gear teeth?

A) Gear tooth flaking

D) Gear tooth cracking

C) Gear tooth chipping

B) Gear tooth pitting

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