Q. When the casing in a centrifugal pump decelerates the flow, what increases?

  • (A) pressure
  • (B) temperature
  • (C) volume
  • (D) flow rate
πŸ’¬ Discuss
βœ… Correct Answer: (A) pressure

Q. The velocity imparted by the impeller is converted into

  • (A) pressure energy
  • (B) kinetic energy
  • (C) momentum
  • (D) potential energy
πŸ’¬ Discuss
βœ… Correct Answer: (A) pressure energy

Q. Euler developed the head pressure equation in centrifugal pumps.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---
πŸ’¬ Discuss
βœ… Correct Answer: (A) true

Q. What is a major advantage of centrifugal pump?

  • (A) cost
  • (B) simple in construction
  • (C) efficiency
  • (D) pump parameters
πŸ’¬ Discuss
βœ… Correct Answer: (B) simple in construction

Q. The main function of nozzle is to

  • (A) pump start procedure
  • (B) positive start pump
  • (C) pump start pointer
  • (D) positive start pointer
πŸ’¬ Discuss
βœ… Correct Answer: (A) pump start procedure

Q. The inlet passage of water entry is controlled by

  • (A) head race
  • (B) gate
  • (C) tail race
  • (D) pump
πŸ’¬ Discuss
βœ… Correct Answer: (B) gate

Q. Reciprocating pumps are also called as

  • (A) force pumps
  • (B) mass pumps
  • (C) heat pumps
  • (D) speed pumps
πŸ’¬ Discuss
βœ… Correct Answer: (A) force pumps

Q. Operation of reciprocating motion is done by a source

  • (A) power
  • (B) energy
  • (C) momentum
  • (D) inertia
πŸ’¬ Discuss
βœ… Correct Answer: (A) power

Q. High pressure reciprocating pumps are generally from 1500 HP.

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---
πŸ’¬ Discuss
βœ… Correct Answer: (A) true

Q. Which of the following centrifugal pumps has higher specific speed than the others?

  • (A) axial flow
  • (B) radial flow
  • (C) mixed flow
  • (D) all centrifugal pumps have same specific speed
πŸ’¬ Discuss
βœ… Correct Answer: (A) axial flow

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