MDE 20 End of Unit Quiz

MDE 20 End Of Unit Quiz

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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

D) Improved gear alignment

B) Reduced gear noise

A) Increased energy efficiency

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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?

B) Cracks or chips on the gear teeth

D) Excessive vibration during operation

A) Rust on the external surface

C) Discoloration of the gearbox oil

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

D) Wait for the gearbox to dry naturally

A) Replace it with fresh, clean oil

C) Perform a visual inspection of the gearbox

B) Add a chemical treatment to neutralize the water

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Question 1:
With reference to reduction gearing, why is the surface finish of gear teeth critical for operational efficiency?

A) It affects the aesthetic appearance of the gear

D) It determines the gear's color and texture

C) It influences the smoothness of the gear operation and reduces friction

B) It ensures the gears can be easily painted

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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

A) Gear teeth

D) Oil filter

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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

D) Oil analysis

A) Vibration analysis

B) Ultrasonic testing

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With reference to reduction gearing, why is EP (Extreme Pressure) lubricating oil preferred?

D) It increases the operating temperature of the gears

C) It simplifies the cleaning process of the gears

A) It enhances the color of the oil

B) It provides excellent protection against wear and extreme pressure conditions

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

B) Increased friction and wear

C) Enhanced thermal conductivity

D) Reduced oil viscosity

A) Improved lubrication properties

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

D) Tachometer

C) Thermometer

B) Dial gauge

A) Micrometer

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Question 6:
Which component in the lubricating oil system helps to separate air from the oil?

B) Air Separator

A) Oil Cooler

C) Oil Pump

D) Pressure Relief Valve

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Question 5:
Which of the following is NOT a benefit of supplying lubricating oil to main reduction gearing before it rotates?

A) Preventing metal-to-metal contact

C) Improving gear tooth profile

D) Minimizing initial friction

B) Reducing startup noise

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

C) Drain the contaminated oil from the gearbox

A) Continue operating the gearbox to check for changes

D) Add a water-soluble additive to the oil

B) Increase the operating temperature to evaporate the water

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