MDE 20 Q1

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

D) Replace the gearbox immediately

C) Investigate and repair the source of the noise

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

A) Continue operation until the next scheduled maintenance

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

B) Presence of cracks and chips on the gear surface

A) Uniform wear across the gear teeth

D) Excessive play between meshing gears

C) Rough, burnt appearance on the gear teeth

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

B) Measuring the temperature of the gearbox

C) Inspecting for oil leaks and contamination

A) Checking the oil level

D) Adjusting the gear mesh

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

C) Gear tooth chipping

A) Gear tooth wear

D) Gear tooth flaking

B) Gear tooth spalling

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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?

A) Rust on the external surface

B) Cracks or chips on the gear teeth

D) Excessive vibration during operation

C) Discoloration of the gearbox oil

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

C) Misalignment of gear shafts

B) Over-lubrication

D) Gear tooth pitting

A) Inadequate gear surface hardening

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

C) Gear tooth chipping

A) Gear tooth scuffing

D) Gear tooth pitting

B) Gear tooth cracking

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

C) To clean the external components of the gearbox

D) To adjust the gearbox's operational speed

B) To verify the alignment and condition of the gears

A) To ensure the gearbox is properly lubricated

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

A) Micrometer

B) Dial gauge

D) Tachometer

C) Thermometer

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

A) Gear teeth

D) Oil filter

B) Input shaft bearing

C) Gearbox housing

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

D) Gear tooth cracking

C) Gear tooth chipping

B) Gear tooth pitting

A) Gear tooth flaking

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