Offline Quiz - Manhole depth and sewer regulation

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What is the typical depth of a normal manhole?

0.7 to 0.9 m

1.0 m

1.5 m (correct)

2.0 m

What type of covers are usually found on top of normal manholes?

Rectangular covers (correct)

Transparent covers

Lightweight covers

Circular covers

How is the excess flow in the sewer system regulated?

By automatic mechanical regulators (correct)

By sewer ventilators

By stormwater

By intercepting traps

What mechanism actuates the automatic mechanical regulators in the sewer system?

Float according to water level Signup and view all the answers

What is the function of catch basins in stormwater management?

To prevent entry of heavy debris into the sewers Signup and view all the answers

What shape are normal manholes usually designed as?

Square or rectangular Signup and view all the answers

What is the purpose of catch basins in storm water management?

To stop the entry of heavy debris from storm water into the sewers Signup and view all the answers

Why are catch basins placed right before curb inlets?

To accumulate impurities at the bottom Signup and view all the answers

What is the primary function of manholes in a sewer system?

For providing access into the sewer lines for inspection, cleaning, and maintenance Signup and view all the answers

Why are manholes constructed at suitable intervals along the sewer lines?

To allow access for inspection, cleaning, and maintenance Signup and view all the answers

What is the purpose of having a basin space at the bottom of catch basins?

To collect impurities from storm water Signup and view all the answers

How do catch basins contribute to storm water management?

By preventing heavy debris from entering sewers Signup and view all the answers

Offline Quiz - Manhole depth and sewer regulation

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