MDE 20 End of Unit Quiz

MDE 20 End Of Unit Quiz

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Question 4:
Why might oil sprayers be more effective than a wet sump system for high-speed main reduction gears?

D) They reduce oil evaporation

A) They reduce oil pressure

C) They provide targeted and controlled lubrication

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Question 1:
What is a primary advantage of double helix gears over single helix gears?

B) Higher load capacity

C) Simpler manufacturing process

A) Increased axial thrust

D) Greater noise generation

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Question:
How may gearbox oil become contaminated with water?

C) By condensation forming inside the gearbox

B) By direct exposure to rain or sea spray

A) Through leaks in the cooling system

D) Through the use of low-quality lubricants

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

A) To ensure proper gear alignment

B) To prevent gear tooth corrosion

D) To cool the gears before operation

C) To provide initial lubrication and reduce wear

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

A) Continue operating the gearbox to check for changes

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

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

C) To separate water from the oil

B) To cool the lubricating oil

A) To increase the oil pressure

D) To filter contaminants

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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

B) Lower axial thrust

D) Increased load capacity

C) Simpler manufacturing process

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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

D) It increases the gear's overall weight

A) It enhances the aesthetic value of the gear

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

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

B) Reduced gear noise

C) Accelerated gear wear and damage

D) Improved gear alignment

A) Increased energy efficiency

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

C) It reduces the amount of oil needed

B) It improves the oil film strength on gears

A) It increases the oil viscosity

D) It simplifies the oil filtration process

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Question 3:
What is a common consequence of water contamination in gearbox oil on the gears?

C) Enhanced gear meshing efficiency

D) Reduced gear noise

A) Improved gear tooth strength

B) Corrosion and rust formation

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Question 1:
In a block diagram of a lubricating oil system for reduction gearing, which component is responsible for filtering contaminants from the oil?

D) Pressure Relief Valve

A) Oil Cooler

B) Oil Pump

C) Oil Filter

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