GATE 2023 || Fluid Mechanics & Machinery || Quiz 10

Attempt now to get your rank among 105 students!

Question 1

A phenomenon is modeled using n dimensional variables with k primary dimensions. The number of non-dimensional variables is

• Ak
• Bn
• Cn-k
• Dn+k

Question 2

Which of the following non-dimensional numbers is not correctly defined?

• A
• B
• C
• D

Question 3

Mach number is significant in

• AFlow of highly viscous fluids
• BMotion of rocket
• CWater waves breaking against a wall
• DMotion of submarine completely in water

Question 4

Using the Buckingham Pi (π) theorem, the relevant parameters are density, viscosity, bulk modulus, rotational speed. The number of independent non-dimensional groups are________?

• A1
• B2
• C3
• D4

Question 5

A water turbine delivering 10 MW power is to be tested with the help of a geometrically similar 1 : 16 model, running at the double speed as that of the prototype. The power developed by model will be

• A35.14 W
• B76.29 W
• C114.44 W
• D228.88 W

Question 6

For the Froude model law, model of a pipe is to be tested. If the discharge is 300 m³/s, then the discharge at which the model must be tested is……… m³/s ?

Answer

• 105 attempts
• 0 upvotes
• 0 comments