MDE 20 End of Unit Quiz

MDE 20 End Of Unit Quiz

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Question 4:
What is one of the potential effects of water contamination on the operational performance of a gearbox?

C) Reduced gear backlash

B) Increased operational temperature

A) Improved energy efficiency

D) Enhanced load capacity

Answer: B) Increased operational temperature

Explanation: Water contamination can lead to increased operational temperatures due to decreased lubrication efficiency and higher friction. This can cause overheating and potentially damage the gearbox.

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Question:
How may gearbox oil become contaminated with water?

B) By direct exposure to rain or sea spray

D) Through the use of low-quality lubricants

A) Through leaks in the cooling system

C) By condensation forming inside the gearbox

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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

A) Checking the oil level

D) Adjusting the gear mesh

C) Inspecting for oil leaks and contamination

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Question 3:
What could be a consequence of not supplying lubricating oil before the main reduction gearing starts rotating?

C) Accelerated gear wear and damage

A) Increased energy efficiency

B) Reduced gear noise

D) Improved gear alignment

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Question 5:
Which of the following is an advantage of helical gears in terms of their load distribution?

A) Less efficient load distribution

D) Higher localized stress

C) No change in load distribution

B) More uniform load distribution

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

A) Micrometer

B) Dial gauge

C) Thermometer

D) Tachometer

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

C) Gearbox housing

B) Input shaft bearing

D) Oil filter

A) Gear teeth

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Question 7:
In a lubricating oil system for reduction gearing, what is the purpose of the temperature sensor?

B) To filter contaminants

D) To relieve excess pressure

A) To regulate the oil flow

C) To monitor and control oil temperature

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Question 2:
What is the primary function of the oil cooler in a lubricating oil system for reduction gearing?

D) To filter contaminants

A) To increase the oil pressure

B) To cool the lubricating oil

C) To separate water from the oil

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

C) Overheating due to high ambient temperatures

D) Improper gear tooth design

A) Excessive load and poor lubrication

B) Incorrect gear mesh alignment

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

B) Gear lubrication viscosity

C) Gear alignment

D) Oil color and smell

A) Bearing temperature and noise levels

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Question 2:
Which of the following is a disadvantage of double helix gears compared to single helix gears?

B) Lower axial thrust

A) Increased manufacturing complexity

C) Reduced load capacity

D) Higher efficiency

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