Fluid Mechanics Notes

Complete Fluid Mechanics Notes (GATE)

Fluid Mechanics Lecture Notes Mechanical Engineering

Hand-Written Notes

Fluid Mechanics Notes for Mechanical Engineering pdf – Click Here

Questions/Answers Mechanical Engineering

Numerical Problems

We are working on this

Theory Problems

We are working on this

MCQs

1. Laminar developed flow at an average velocity of 5 m/s occurs in a pipe of 10 cm radius. The velocity at 5 cm radius is?

A. 6.5 m/s

B. 7 m/s

C. 7.5 m/s

D. 8m/s

View Answer/Explanation

Correct Answer is C

Using the Formula

U = 2Uavg. [1 – (r/R)² ]

2. Flow separation is caused by –

A. a negative pressure gradient

B. a positive pressure gradient

C. reduction of pressure to local vapor pressure

D. thinning of boundary layer thickness to zero

View Answer/Explanation

Correct Answer is B

3. A centrifugal pump is started with its delivery valve kept –

A. fully closed

B. fully open

C. partially open

D. 50% open

View Answer/Explanation

Correct Answer is A

4. Ir-rotational flow occurs when?

A. there is no net rotation of the fluid element about its mass center

B. streamlines are curved

C. fluid element does not undergo any change in size or shape

D. flow takes place in a duct of a uniform cross section at a constant mass flow rate

View Answer/Explanation

Correct Answer is A

5. Which of the following forces act on a fluid at rest?

  1. Gravity force
  2. Hydrostatic force
  3. Surface tension
  4. Viscous force

A. All of these

B. 1 and 2

C. 1, 2 and 4

D. 1, 2 and 3

View Answer/Explanation

Correct Answer is D

Viscous force do not act when fluid is at rest.

For More Questions – Click Here

Previous Year Question Papers Mechanical Engineering

Click to Open

Note- Links will open in a new tab/window.

EXAMINATIONS

LINKS

GATE

Click 2 Proceed

ISRO

Click 2 Proceed

SSC (JE)

Click 2 Proceed

Are you looking for SSC Notes Mechanical Engineering

Click Here