MDE 20 End of Unit Quiz

MDE 20 End Of Unit Quiz

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

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

A) Continue operation until the next scheduled maintenance

C) Investigate and repair the source of the noise

D) Replace the gearbox immediately

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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

D) Higher efficiency

C) Reduced load capacity

A) Increased manufacturing complexity

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Question 2:
After draining the contaminated oil from the gearbox, what should be done next?

B) Add a chemical treatment to neutralize the water

C) Perform a visual inspection of the gearbox

A) Replace it with fresh, clean oil

D) Wait for the gearbox to dry naturally

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Question 2:
One disadvantage of helical gears compared to spur gears is:

B) Higher manufacturing costs

A) Reduced friction

C) Less axial thrust

D) Improved efficiency

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Question 5:
How does the use of oil sprayers impact the efficiency of main reduction gearing lubrication?

B) It improves the oil film strength on gears

D) It simplifies the oil filtration process

A) It increases the oil viscosity

C) It reduces the amount of oil needed

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Question:
With reference to reduction gearing, what is the primary purpose of the magnetic filter in the lubricating oil system?

A) To remove water contaminants from the oil

C) To attract and remove ferrous particles and metal debris from the oil

D) To maintain the oil temperature within the optimal range

B) To filter out large debris before the oil reaches the gears

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Question 1:
Why should lubricating oil be supplied to the main reduction gearing before it starts rotating?

D) To cool the gears before operation

A) To ensure proper gear alignment

C) To provide initial lubrication and reduce wear

B) To prevent gear tooth corrosion

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Question 3:
Which of the following methods can be used to detect heat build-up in the main reduction gearing?

C) Thermography

A) Vibration analysis

B) Ultrasonic testing

D) Oil analysis

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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

B) More uniform load distribution

C) No change in load distribution

D) Higher localized stress

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Question 3:
Which of the following is a disadvantage of helical gears compared to spur gears?

C) Simpler gear alignment

B) Increased axial load

D) Higher efficiency

A) Reduced noise levels

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Question 3:
One advantage of double helix gears is their effect on axial thrust. What is this effect?

A) Double helix gears produce higher axial thrust.

B) Double helix gears produce lower axial thrust.

C) Double helix gears have no effect on axial thrust.

D) Double helix gears produce varying axial thrust depending on load.

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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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