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MCQs

Total Questions : 107 | Page 7 of 11 pages
Question 61. . Target meter is concerned with measurement of :
  1.    Flow
  2.    Pressure
  3.    Viscosity
  4.    Density
 Discuss Question
Answer: Option A. -> Flow
Question 62. . Pick out false statement about disadvantages of orifice plates :
  1.    Square root relationship
  2.    Poor turn-down ratio
  3.    Critical installation requirements
  4.    Short-term reliability
 Discuss Question
Answer: Option D. -> Short-term reliability
Question 63. . Pick out false statement about advantages of orifice plates, used for flow measurement:
  1.    No moving parts
  2.    Long-term reliability
  3.    Highturn-down ratio
  4.    Inexpensive
 Discuss Question
Answer: Option C. -> Highturn-down ratio
Question 64. . Which of the following flow meter maintains a constant pressure differential but varies the orifice area with flow
  1.    Ledoux bell
  2.    Variable area
  3.    Straightening vane
  4.    Variable head
 Discuss Question
Answer: Option B. -> Variable area
Question 65. . The flow error in case of normal nozzles is of the order of :
  1.    0.001
  2.    0.002
  3.    0.005
  4.    0.01
 Discuss Question
Answer: Option D. -> 0.01
Question 66. . For measuring air flow, following meter is often used :
  1.    Vane-type or anemometer
  2.    Electro magnetic flow meter
  3.    Vortex-shedding meter
  4.    Ultrasonic flow meter
 Discuss Question
Answer: Option A. -> Vane-type or anemometer
Question 67. . Laser droppler anemometer is used to measure :
  1.    Pressure
  2.    Velocity
  3.    Level
  4.    Density
 Discuss Question
Answer: Option B. -> Velocity
Question 68. . In which flow device the pressure loss is minimum :
  1.    Orifice plate
  2.    Dall tube.
  3.    Variable orifice meter
  4.    Venturi tube
 Discuss Question
Answer: Option B. -> Dall tube.
Question 69. . Flow in open channels is measured by using :
  1.    Nozzle
  2.    Orifice plate
  3.    Propeller
  4.    Weir
 Discuss Question
Answer: Option D. -> Weir
Question 70. . Pick out the odd flow measuring device among the following :
  1.    Positive displacement type
  2.    Hydraulic flume.
  3.    Sliding vane type
  4.    Turbine type
 Discuss Question
Answer: Option B. -> Hydraulic flume.

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