Hydraulics and Fluid Mechanics - Mechanical Engineering Questions and Answers

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.

sum

difference

arithmatic mean

geometric mean

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (Ï) and rotating at (Ï‰) rad/s is

ρ ω² r²

2ρ ω² r²

\(\frac { \rho \omega^2 r^2 } { 2 }\)

\(\frac { \rho \omega^2 r^2 } { 4 }\)

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

When the Mach number is between __________ the flow is called super-sonic flow.

1 and 2.5

2.5 and 4

4 and 6

1 and 6

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL
Share as Image
As Image

The property of a liquid which controls its rate of flow is called viscosity.

True

False