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MCQs

Total Questions : 3218 | Page 36 of 322 pages
Question 351. The discharge through a venturimeter depends upon
  1.    Pressure drop only
  2.    Its orientation
  3.    Co-efficient of contraction only
  4.    None of these
 Discuss Question
Answer: Option A. -> Pressure drop only
Question 352. Surge tanks are provided in high pressure water pipelines to
  1.    Store a definte quantity ofwater all the time
  2.    Reduce the water hammer
  3.    Facilitate easy dismantling of pipeline for cleaning and maintenance
  4.    None of these
 Discuss Question
Answer: Option B. -> Reduce the water hammer
Question 353. Glass pipes can be joined by
  1.    Flanges
  2.    Welding
  3.    Soldering
  4.    Bell and spigot joint
 Discuss Question
Answer: Option D. -> Bell and spigot joint
Question 354. The maximum head that can be developed by a single impeller is __________ ft.
  1.    25
  2.    100
  3.    250-300
  4.    1000
 Discuss Question
Answer: Option C. -> 250-300
Question 355. Diaphragm pumps are used to transport
  1.    Solids
  2.    Liquids
  3.    Fluids
  4.    Slurries
 Discuss Question
Answer: Option D. -> Slurries
Question 356. Pick out the correct statement pertaining to the flow through a converging-diverging tube.
  1.    The value of Mach number is always unity at the throat
  2.    No shock wave develops in the tube when the Mach number at exit is greater than unity
  3.    Throughout the converging portion of the tube, the density increases in the downstream direction
  4.    None of these
 Discuss Question
Answer: Option B. -> No shock wave develops in the tube when the Mach number at exit is greater than unity
Question 357. The discharge through a rectangular weir varies as
  1.    H1/2
  2.    H5/2
  3.    H2/5
  4.    H3/2
 Discuss Question
Answer: Option D. -> H3/2
Question 358. The line of action of the buoyant force passes through the centre of gravity of the
  1.    Submerged body
  2.    Displaced volume of the fluid
  3.    Volume of fluid vertically above the body
  4.    Horizontal projection of the body
 Discuss Question
Answer: Option B. -> Displaced volume of the fluid
Question 359. The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number.
  1.    Increases
  2.    Decreases
  3.    Remains same
  4.    May increase or decrease
 Discuss Question
Answer: Option B. -> Decreases
Question 360. The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is
  1.    0.1
  2.    0.55
  3.    0.95
  4.    1.85
 Discuss Question
Answer: Option C. -> 0.95

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