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MCQs

Total Questions : 183 | Page 3 of 19 pages
Question 21. The expression for the self cleansing velocity is given by ____________
  1.    (8*B* (G-1) *g*d/f)⅓
  2.    (8*B* (G-1) *g*d/f)²
  3.    (8*B* (G-1) *g*d/f)
  4.    (8*B* (G-1) *g*d/f)½
 Discuss Question
Answer: Option D. -> (8*B* (G-1) *g*d/f)½
Answer: (d).(8*B* (G-1) *g*d/f)½
Question 22. _______ is the velocity at which the solid matter in sewage remained in suspended form.
  1.    Settling velocity
  2.    Self cleansing velocity
  3.    Mean velocity
  4.    Non Scouring velocity
 Discuss Question
Answer: Option B. -> Self cleansing velocity
Answer: (b).Self cleansing velocity
Question 23. In which of the following, the self cleansing velocity is maximum?
  1.    Angular stones
  2.    Fine sand
  3.    Fine clay
  4.    Fine gravel
 Discuss Question
Answer: Option A. -> Angular stones
Answer: (a).Angular stones
Question 24. The diameter of the sewer is 23cm. What should be the self cleansing velocity?
  1.    10cm/Sec
  2.    40cm/Sec
  3.    100cm/Sec
  4.    130cm/Sec
 Discuss Question
Answer: Option C. -> 100cm/Sec
Answer: (c).100cm/Sec
Question 25. The self cleansing velocity required for coarse sand is __________
  1.    10cm/Sec
  2.    20cm/Sec
  3.    30cm/Sec
  4.    40cm/Sec
 Discuss Question
Answer: Option B. -> 20cm/Sec
Answer: (b).20cm/Sec
Question 26. Which of the following is incorrect regarding Egg shaped sewer?
  1.    It is cheap
  2.    It is difficult to construct
  3.    It is less stable
  4.    It is mainly circular in shape
 Discuss Question
Answer: Option A. -> It is cheap
Answer: (a).It is cheap
Question 27. The upper portion of Egg shaped sewer is called as _____
  1.    Level
  2.    Arch
  3.    Invert
  4.    Wedge
 Discuss Question
Answer: Option B. -> Arch
Answer: (b).Arch
Question 28. The height of standard section of Egg shaped sewer is ______ the new shaped section.
  1.    Equal to
  2.    Twice of
  3.    Less than
  4.    Half of
 Discuss Question
Answer: Option A. -> Equal to
Answer: (a).Equal to
Question 29. The Egg shaped sewer provides ____ velocity for low flows over the circular sewer of equal capacity.
  1.    Lesser
  2.    Higher
  3.    Slightly higher
  4.    Very high
 Discuss Question
Answer: Option C. -> Slightly higher
Answer: (c).Slightly higher
Question 30. The lower portion of Egg shaped sewer is known as _____
  1.    Roof
  2.    Invert
  3.    Arch
  4.    Wedge
 Discuss Question
Answer: Option B. -> Invert
Answer: (b).Invert

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