Q. The diameter of the sewer is _____ the diameter of ventilating column.

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Q. Ventilating columns are provided at intervals of ______ along the sewer lines.

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Q. _______ is used to remove the waste directly from the building.

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Q. Which of the following is called as a ventilated discharge pipe?

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Q. Which gas among the following is not produced in the sewer?

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Q. The magnitude of hoop stress on sewer is given __________

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Q. In order to reduce temperature stress ______________ joints are provided.

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Q. The expression for the temperature stress is given by __________

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Q. The type of backfill is saturated clay. What is its unit weight?

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Q. Which of the following has the minimum unit weight?

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Q. The type of soil is loose dry sand. What is the coefficient of cohesion of the soil?

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Q. Which of the following order is correct regarding coefficient of cohesion?

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Q. How many types of underground sewer are there on the basis of construction conditions?

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Q. _______ condition exists when the sewer is laid at a depth between 9m to 12m.

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Q. Negative projecting condition is a type of ______ condition.

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Q. Which of the following is not a sewer appurtenance?

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Q. ______ provides the working space for maintenance and inspection of sewers.

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Q. The minimum thickness of the side wall of the manhole is __________

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Q. Which of the following is situated above the working chamber in a deep manhole?

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Q. If the depth of excavation is 4m. What is the thickness of the brick wall of manhole?

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