Waste Water Engineering - Study Mode

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[#146] If is the diameter of upper circular portion, the overall depth of New Egg shaped sewer section, is

(A) 1.250 D

(B) 1.350 D

(C) 1.425 D

(D) 1.625 D

Correct Answer

(D) 1.625 D

[#147] If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is

(A) 1 in 60

(B) 1 in 100

(C) 1 in 120

(D) None of these

Correct Answer

(C) 1 in 120

[#148] If the diameter of a sewer is 150 mm, the gradient required for generating self cleansing velocity, is

(A) 1 in 60

(B) 1 in 100

(C) 1 in 120

(D) None of these

Correct Answer

(B) 1 in 100

[#149] Pick up the incorrect size of stone ware sewers

(A) 52.5 cm

(B) 67.5 cm

(C) 82.5 cm

(D) None of these

Correct Answer

(D) None of these

[#150] The stone ware sewers

(A) Are used for carrying sewage and drainage from houses

(B) Are manufactured from clays and shale

(C) After casting are dried and burnt at temperature 150°C, 700°C and 1200°C

(D) All the above

Correct Answer

(D) All the above