Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the
A. Length of the pipe
B. Diameter of the pipe
C. Density of the fluid
D. Velocity of the fluid
Answer: Option A
A. Length of the pipe
B. Diameter of the pipe
C. Density of the fluid
D. Velocity of the fluid
Answer: Option A
Which of the following will resist maxi-mum shock & vibration without cracking?
A. Grey cast iron
B. White cast iron
C. Malleable iron
D. Graphite
A. Pulverised fuel
B. Travelling grate stoker firing
C. Circulating fluidised bed
D. Fluidised bed
Isotropic materials have the same __________ in all directions.
A. Induced stresses
B. Density
C. Elastic properties
D. Thermal properties
Reynold number for pipe is given by ((rho×vel.×diameter)/viscosity))
So it does not depend upon the length of the pipe.
Option A is correct
how explain?