Question

The maximum spacing of manholes specified as per Indian Standards in sewers upto 0.3 m diameter is

1. 75 m
2. 60 m
3. 45 m
4. 30 m

Answer 1

The maximum spacing of manholes as per Indian Standards for sewers up to 0.3 m in diameter is 45 meters, which correlates with option 3 of the question provided.

Step-by-step explanation:

• The student has asked about the maximum spacing of manholes in sewers of up to 0.3 m diameter as specified by Indian Standards. This question pertains to civil or sanitary engineering practices in the context of sewer design.
• According to the prevailing Indian Standards, the maximum spacing of manholes for sewers up to 300 mm (0.3 m) diameter is generally specified as 45 m. Therefore, the correct answer to the question is option 3.
• This requirement is in place to ensure accessibility for maintenance, inspection, and emergency access within the sewer system.