Hydraulic Machines MCQs with answers Page - 2

Here, you will find a collection of MCQ questions on Hydraulic Machines. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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A

Admin • 833K Points
Coach

Q. Any change in load is adjusted by adjusting following parameter on turbine

  • (A) net head
  • (B) absolute velocity
  • (C) blade velocity
  • (D) flow

A

Admin • 833K Points
Coach

Q. Axial flow pump is started with its delivery valve

  • (A) kept fully closed
  • (B) kept fully open
  • (C) irrespective of any position
  • (D) kept 50% open

A

Admin • 833K Points
Coach

Q. Casting of a centrifugal pump is designed so as to minimize

  • (A) friction loss
  • (B) cavitation
  • (C) static head
  • (D) loss of kinetic energy

A

Admin • 833K Points
Coach

Q. Centrifugal pump is started with its delivery valve

  • (A) kept fully closed
  • (B) kept fully open
  • (C) irrespective of any position
  • (D) kept 50% open

A

Admin • 833K Points
Coach

Q. For small discharge at high pressure, following pump is preferred

  • (A) centrifugal
  • (B) axial flow
  • (C) mixed flow
  • (D) reciprocating

A

Admin • 833K Points
Coach

Q. For starting an axial flow pump, its delivery valve should be

  • (A) closed
  • (B) open
  • (C) depends on starting condition and flow desired
  • (D) could be either open or closed

A

Admin • 833K Points
Coach

Q. For very high discharge at low pressure such as for flood control and irrigation applications, following type of pump is preferred

  • (A) centrifugal
  • (B) axial flow
  • (C) reciprocating
  • (D) mixed flow

A

Admin • 833K Points
Coach

Q. Francis turbine is best suited for

  • (A) medium head application from 24 to 180 m
  • (B) low head installation up to 30 m
  • (C) high head installation above 180 m
  • (D) all types of heads

A

Admin • 833K Points
Coach

Q. Francis, Kaplan and propeller turbines fall under the category of

  • (A) Impulse turbines
  • (B) Reaction turbines
  • (C) Axial flow turbines
  • (D) Mixed flow turbines

A

Admin • 833K Points
Coach

Q. Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between

  • (A) lift and resultant force
  • (B) drag and resultant force
  • (C) lift and tangential force
  • (D) lift and drag

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