Fluid Mechanics - Chemical Engineering Questions and Answers

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss

decreases

increases

remains constant

increases linearly

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The vent valve provided in a liquid handling centrifugal pump is

generally a needle valve.

used to release any gases that might be vapour locking the pump.

helpful in easy removal of samples.

all (a), and (b) and (c).

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The discharge through a semi-circular weir varies as (where, H = Head of liquid.)

H²

H^3/2

H^1/2

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The Mach number for hypersonic flow of compressible fluid is

> 1

> 4

< 2

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.)

d^2/3

d^4/5

d^1/3

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Mass velocity in case of steady flow and through a constant cross-section conduit is independent of the

temperature

pressure

both (a) & (b)

neither (a) nor (b)

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The valve used for very remote and accurate control of fluid is a __________ valve.

needle

globe

gate

butterfly

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

f = 16/N_Re, is valid for

turbulent flow

laminar flow through an open channel

steady flow

none of these

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

A mixed flow centrifugal pump

employs such an impeller, through which the flow is a combination of radial & axial flow.

mixes the two fluids before pumping them.

pumps the two fluids separately and then mixes them.

employs impellers in both the radial & axial directions.