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

A) It affects the aesthetic appearance of the gear

D) It determines the gear's color and texture

B) It ensures the gears can be easily painted

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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?

B) It can cause increased noise and vibration

D) It allows for better lubrication of the gears

C) It improves the gear's resistance to wear

A) It enhances the load capacity of the gear

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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

A) It affects the gear's color and appearance

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

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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

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

D) To maintain the oil temperature within the optimal range

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

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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?

A) It enhances the aesthetic value of the gear

D) It increases the gear's overall weight

C) It simplifies the manufacturing process

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

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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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