Lakshya Education MCQs

Question: If v1 and v2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is
Options:
A. (V1 - V2) / V1
B. (V1² - V2²) / V1²
C. V1 / (V1 - V2)
D. V1² / (V1² - V2²)
Answer: Option B

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More Questions on This Topic :

Question 1. Center of buoyancy is the
  1.     Centroid of the displaced volume of fluid
  2.     Center of pressure of displaced volume
  3.     Does not exist
  4.     None of the above
Answer: Option A
Question 2. The hydraulic mean depth for a circular pipe of diameter (d) is
  1.     d/6
  2.     d/4
  3.     d/2
  4.     d
Answer: Option B
Question 3. Bernoulli equation deals with the law of conservation of
  1.     Mass
  2.     Momentum
  3.     Energy
  4.     Work
Answer: Option C
Question 4. Bernoulli equation deals with the law of conservation of
  1.     Mass
  2.     Momentum
  3.     Energy
  4.     Work
Answer: Option C
Question 5. Bernoulli equation deals with the law of conservation of
  1.     Mass
  2.     Momentum
  3.     Energy
  4.     Work
Answer: Option C
Question 6. Center of buoyancy is the
  1.     Centroid of the displaced volume of fluid
  2.     Center of pressure of displaced volume
  3.     Does not exist
  4.     None of the above
Answer: Option A

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