Two pipes, each of diameter d, converge to form a pipe of diameter D. – McqOptions

MCQOPTIONS

1.	Two pipes, each of diameter d, converge to form a pipe of diameter D. What should be therelation between d and D such that theow velocity in the third pipe becomes half of that in eachof the two pipes?
A.	D = d/2
B.	D = d/3
C.	D = d/4
D.	D = d/5
Answer» B. D = d/3

Discussion

No Comment Found

Related MCQs

Which of the following represents the best definition for the diffusion length for holes?
What is the diffusion length for electrons when Dn=10cm2/s and τn=40s?
What is the diffusion length for holes when Dp=25cm2/s and τp=25s?
The current entering the volume at x is I and leaving is I+Δi , the number of coulombs per second will be equal to δI. Is it true or false?
Calculate the number of coulombs per second if the area is 4cm2, recombination rate of hole is 1000 cm-3/s and the differential length is 2mm.
What does p/τ represent?
On equating the generic form of current density equation and the point form of Ohm’s law, we can obtain V=IR. State True/False.
Calculate the potential when a conductor of length 2m is having an electric field of 12.3units.
Find the resistance of a cylinder of area 200 units and length 100m with conductivity of 12 units.
Find the current when the charge is a time function given by q(t) = 3t + t2 at 2 seconds.