MDE 20 Q4

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

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

D) It determines the gear's color and texture

A) It affects the aesthetic appearance of the gear

B) It ensures the gears can be easily painted

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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?

D) It increases the gear's overall weight

C) It simplifies the manufacturing process

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:
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

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

D) To maintain the oil temperature within the optimal range

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

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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?

B) It has no significant impact on power transmission efficiency

D) It makes the gear easier to manufacture

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

A) It affects the gear's color and appearance

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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

A) It enhances the color of the oil

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

C) It simplifies the cleaning process of the gears

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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?

D) It allows for better lubrication of the gears

B) It can cause increased noise and vibration

C) It improves the gear's resistance to wear

A) It enhances the load capacity of the gear

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