Fluid Mechanics MCQs with answers Page - 2

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

To check the correct answer, simply click the View Answer button provided for each question.

Have your own questions to contribute? Click the button below to share your MCQs with others!

+ Add Question

A

Admin • 833.24K Points
Coach

Q. Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.

  • (A) Electrical resistivity
  • (B) Specific gravity
  • (C) Electrical conductivity
  • (D) Thermal conductivity

A

Admin • 833.24K Points
Coach

Q. What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water interface? The balloon is of radius 0.1 m and is filled with air.

  • (A) 4πg/3
  • (B) 0.01πgH/4
  • (C) 0.01πgH/8
  • (D) 0.04πgH/3

A

Admin • 833.24K Points
Coach

Q. With increase in molecular weight of the gas, the head developed by a centrifugal compressor will

  • (A) Unpredictable
  • (B) Remain same
  • (C) Increase
  • (D) Decrease

A

Admin • 833.24K Points
Coach

Q. Priming of a centrifugal pump is done to

  • (A) Develop effective pressure rise by the pump
  • (B) Increase the mass flow rate of fluid
  • (C) Avoid chances of separation inside the impeller
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. Pressure drop (Δp) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as

  • (A) V1.8
  • (B) V-0.2
  • (C) V2.7
  • (D) V2

A

Admin • 833.24K Points
Coach

Q. __________ pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm2.

  • (A) Vane
  • (B) Plunger
  • (C) Piston
  • (D) Centrifugal

A

Admin • 833.24K Points
Coach

Q. Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor.

  • (A) More than
  • (B) Less than
  • (C) Same as
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. The terminal velocity of a small sphere settling in a viscous fluid varies as the

  • (A) First power of its dimeter
  • (B) Inverse of the fluid viscosity
  • (C) Inverse square of the diameter
  • (D) Square of the difference in specific weights of solid & fluid

A

Admin • 833.24K Points
Coach

Q. The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length.

  • (A) Transition
  • (B) Equivalent
  • (C) Prandtl mixing
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. The ratio of inertial forces to elastic forces is called the __________ number.

  • (A) Weber
  • (B) Euler
  • (C) Mach
  • (D) Reynolds

Add MCQ in this Category

If you want to share an MCQ question in this category, it's a great idea! It will be helpful for many other students using this website.

Share Your MCQ

Browse Categories

Click on category to learn MCQs of that category.