APSC AE WRD 2019 PYQ: Manhole Cover Minimum Diameter

Manhole Cover Minimum Diameter

Question: The minimum diameter of a manhole cover should be

(A) 25 cm

(B) 50 cm

(C) 75 cm

(D) 100 cm

✅ The correct answer is: (B) 50 cm

📌 Explanation

The minimum diameter of a manhole cover is specified as 50 cm (or 0.5 m) in certain engineering standards. This size allows for safe access for maintenance workers while accommodating the necessary equipment for sewers or underground chambers.

📌 Related Information

• Manhole covers are typically circular to prevent the cover from accidentally falling into the hole.
• Standard diameters for manhole covers can vary, often ranging from 50 cm to 100 cm, depending on their specific purpose (e.g., sewer access vs. inspection chambers).

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