MDE 20 Q4

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

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

A) To remove water contaminants from the oil

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

D) To maintain the oil temperature within the optimal range

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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?

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

D) It increases the gear's overall weight

A) It enhances the aesthetic value of the gear

C) It simplifies the manufacturing process

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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

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

A) It enhances the color of the oil

C) It simplifies the cleaning process of the gears

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Question 4:
With reference to reduction gearing, what role does the surface finish of gear teeth play in the efficiency of power transmission?

C) It helps to minimize energy losses due to friction and improves efficiency

D) It makes the gear easier to manufacture

A) It affects the gear's color and appearance

B) It has no significant impact on power transmission efficiency

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

D) It determines the gear's color and texture

B) It ensures the gears can be easily painted

A) It affects the aesthetic appearance of the gear

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

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Question 2:
With reference to reduction gearing, how does a poor surface finish on gear teeth impact the gear's performance?

C) It improves the gear's resistance to wear

D) It allows for better lubrication of the gears

A) It enhances the load capacity of the gear

B) It can cause increased noise and vibration

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