MDE 20 End of Unit Quiz

MDE 20 End Of Unit Quiz

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Question 1:
Which of the following is an advantage of helical gear teeth over spur gear teeth?

A) Higher noise levels during operation

C) Simpler manufacturing process

D) Increased load capacity

B) Lower axial thrust

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Question 5:
What is the purpose of using ultrasonic testing in the condition monitoring of main reduction gearing?

A) To measure lubricant viscosity

B) To detect internal defects or cracks

D) To assess temperature variations

C) To analyze vibration patterns

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Question 1:
What is one of the primary effects of water contamination in gearbox oil?

C) Enhanced thermal conductivity

D) Reduced oil viscosity

A) Improved lubrication properties

B) Increased friction and wear

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

A) To regulate the oil flow

C) To monitor and control oil temperature

D) To relieve excess pressure

B) To filter contaminants

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

C) Thermometer

D) Tachometer

B) Dial gauge

A) Micrometer

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

C) Less axial thrust

B) Higher manufacturing costs

D) Improved efficiency

A) Reduced friction

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Question 4:
What does the oil pump do in the lubricating oil system for reduction gearing?

D) Relieves excess pressure

B) Filters out impurities

A) Regulates the oil temperature

C) Circulates the oil through the system

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

D) Improved gear alignment

B) Reduced gear noise

A) Increased energy efficiency

C) Accelerated gear wear and damage

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

C) Investigate and repair the source of the noise

D) Replace the gearbox immediately

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

A) Continue operation until the next scheduled maintenance

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Question 3:
With reference to reduction gearing, why is achieving a precise surface finish on gear teeth important for the gear's lifespan?

C) It simplifies the manufacturing process

A) It enhances the aesthetic value of the gear

D) It increases the gear's overall weight

B) It reduces the chances of tooth breakage and premature wear

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Question 4:
What advantage do helical gears have over spur gears in terms of operational noise?

A) Higher operational noise

D) No effect on operational noise

B) Lower operational noise

C) Equal operational noise

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Question 1:
What is the first step to take if you discover water contamination in the gearbox oil?

D) Add a water-soluble additive to the oil

C) Drain the contaminated oil from the gearbox

B) Increase the operating temperature to evaporate the water

A) Continue operating the gearbox to check for changes

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