Pelton Wheel Turbine MCQ

Test your knowledge with important Pelton Wheel Turbine MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Pelton Wheel Turbine MCQs at Bissoy

• Which of the following pump is preferred for flood control and irrigation applications?
  ক

  Reciprocating pump

  খ

  Axial flow pump

  গ

  Mixed flow pump

  ঘ

  Centrifugal pump
• The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is __________
  ক

  high speed with radial flow at outlet

  খ

  slow speed with radial flow at outlet

  গ

  medium speed with radial flow at outlet

  ঘ

  high speed with axial flow at outlet
• In a reaction turbine, the draft tube is used __________
  ক

  to increase the head of water by an amount equal to the height of the runner outlet above the tail race

  খ

  to transport water to downstream

  গ

  to run the turbine full

  ঘ

  to prevent air to enter the turbine
• Power required to drive a centrifugal pump is directly proportional to __________ of its impeller.
  ক

  cube of diameter

  খ

  fourth power of diameter

  গ

  diameter

  ঘ

  square of diameter
• What is the formula for the velocity of water jet at the inlet of turbine? Where, H = Net head acting on Pelton wheel Cv = coefficient of velocity of jet
  ক

  V = Cv((gH)(1/2))

  খ

  V = 2Cv((gH)(1/2))

  গ

  V = Cv((2gH)(1/2))

  ঘ

  V = 2Cv((gH)(1/2))
• What is runaway speed of the runner of Pelton wheel?
  ক

  maximum unsafe speed of the runner due to sudden increase in load on turbine

  খ

  minimum safe speed of the runner due to sudden increase in load on turbine

  গ

  maximum unsafe speed of the runner due to sudden decrease in load on turbine

  ঘ

  minimum safe speed of the runner due to sudden decrease in load on turbine
• Which of the following hydraulic turbines has a construction given in diagram below?
  ক

  Kaplan turbine

  খ

  Francis turbine

  গ

  Pelton turbine

  ঘ

  Propeller turbine
• Gross head is the difference between __________
  ক

  head race and tail race

  খ

  head race and net head

  গ

  head race and friction losses

  ঘ

  net head and friction losses
• The runner of __________ turbine always be under pressure of above atmospheric pressure.
  ক

  Turgo

  খ

  Girand

  গ

  Kaplan

  ঘ

  None of the mentioned
• Which of the following is an example of impulse turbine?
  ক

  Propeller turbine

  খ

  Francis turbine

  গ

  Kaplan turbine

  ঘ

  Pelton wheel
• The energy of water entering the reaction turbine is _______
  ক

  fully the kinetic energy

  খ

  fully the pressure energy

  গ

  partly the pressure energy and partly the kinetic energy

  ঘ

  unpredictable
• The pressure of water is atmospheric and remains constant while passing over the runner in __________
  ক

  Impulse turbine

  খ

  Reaction turbine

  গ

  Both Impulse and Reaction turbine

  ঘ

  None of the mentioned
• In which turbine the pressure energy of water is first converted into kinetic energy by means of nozzle kept close to the runner?
  ক

  Impulse turbine

  খ

  Reaction turbine

  গ

  Both Impulse and Reaction turbine

  ঘ

  None of the mentioned
• For centrifugal pump impeller, what is the maximum value of the vane exit angle?
  ক

  100 to 150

  খ

  150 to 200

  গ

  200 to 250

  ঘ

  250 to 300