Centrifugal & Reciprocating Pumps MCQ

Test your knowledge with important Centrifugal & Reciprocating Pumps MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Centrifugal & Reciprocating Pumps MCQs at Bissoy

• Why is a minimum of net positive suction head (NPSH) required for a hydraulic pump?
  ক

  To prevent cavitation

  খ

  To increase discharge

  গ

  To increase suction head

  ঘ

  To increase efficiency
• Negative slip occurs in reciprocating pumps, when delivery pipe is ______
  ক

  Long and suction pipe is short and pump is running at low speed

  খ

  Long and suction pipe is short and pump is running at high speed

  গ

  Short and suction pipe is long and pump is running at low speed

  ঘ

  Short and suction pipe is long and pump is running at high speed
• Why an air vessel is used in a reciprocating pump?
  ক

  To obtain a continuous supply of water at uniform rate

  খ

  To reduce suction head

  গ

  To increase the delivery head

  ঘ

  To reduce cavitation
• When the speed of the centrifugal pump is doubled, the power required to drive the pump will be _____
  ক

  Increase 8 times

  খ

  Increase 4 times

  গ

  Double

  ঘ

  Remain the same
• Which of the following is not an advantage of centrifugal pump?
  ক

  Low initial cost

  খ

  High efficiency

  গ

  Difficult installation

  ঘ

  Easy maintenance
• Hydraulic machine convert mechanical energy into hydraulic energy by means of centrifugal force acting on the fluid ______
  ক

  Centrifugal pump

  খ

  Rotary pump

  গ

  Multiple rotor

  ঘ

  Reciprocating pump
• Dynamic pumps are also known as ______
  ক

  Positive displacement pumps

  খ

  Non-positive displacement pumps

  গ

  Reciprocating pump

  ঘ

  Rotary pump
• Which of the following is a dynamic pump?
  ক

  Centrifugal pump

  খ

  Rotary pump

  গ

  Multiple rotor

  ঘ

  Reciprocating pump
• Which of the following is a positive displacement pump?
  ক

  Centrifugal pump

  খ

  Diffuser pump

  গ

  Axial pump

  ঘ

  Reciprocating pump
• Which hydraulic machine convert mechanical energy into pressure energy?
  ক

  Pump

  খ

  Refrigerator

  গ

  Heat engine

  ঘ

  Turbine