Hydraulic Machines MCQs with answers Page - 14

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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Q. If the ratio of all the corresponding linear dimensions are equal, then the model and the prototype are said to have

  • (A) geometric similarity
  • (B) kinematic similarity
  • (C) dynamic similarity
  • (D) none of these

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Q. If the ratios of the corresponding forces acting at corresponding points are equal, then the model and the prototype are said to have.

  • (A) geometric similarity
  • (B) kinematic similarity
  • (C) dynamic similarity
  • (D) none of these

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Q. Which of the following pump is sucessfully used for lifting water to the turbines?

  • (A) Centrifugal pump
  • (B) Reciprocating pump
  • (C) Jet pump
  • (D) Air-lift pump

A

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Q. A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

  • (A) kinetic head
  • (B) velocity head
  • (C) manometric head
  • (D) static head

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Q. In a Francis turbine, the pressure at inlet is

  • (A) less than
  • (B) more than
  • (C) ---
  • (D) ---

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Q. The maximum number of jets, generally, employed in an impulse turbine without jet interference are

  • (A) two
  • (B) four
  • (C) six
  • (D) eight

A

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Q. Which of the following hydraulic unit is used for transmitting increased or decreased torque to the driven shaft?

  • (A) Hydraulic ram
  • (B) Hydraulic intensifier
  • (C) Hydraulic torque converter
  • (D) Hydraulic accumulator

A

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Q. The head available at the inlet of the turbine is known as net or effective head.

  • (A) Correct
  • (B) Incorrect
  • (C) ---
  • (D) ---

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Q. A double overhung Pelton wheel has

  • (A) two jets
  • (B) two runners
  • (C) four jets
  • (D) four runners

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Q. The air vessel, in a reciprocating pump, is a cast iron closed chamber having an opening at its base.

  • (A) Agree
  • (B) Disagree
  • (C) ---
  • (D) ---

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