In the design of pipeline the usual practice is to assume that due to – McqOptions

MCQOPTIONS

1.	In the design of pipeline the usual practice is to assume that due to aging of pipelines:1. The effective roughness increases linearly with time.2. The friction factor increases linearly with time3. The flow through the pipe becomes linearly lesser with time.Which of the above statements is/are correct?
A.	1, 2 and 3
B.	3 only
C.	2 only
D.	1 only
Answer» E.

Discussion

No Comment Found

Related MCQs

Friction factor of pipes depends on
A Newtonian fluid having a viscosity of 0.39 Ns/m2 and specific gravity of 0.91 flows through a 25 mm diameter pipe with velocity of 3.6 m/s. Then the value of Reynold’s number is:
For maximum power transmission through a pipe line, the frictional head loss equals
A pipeline AB of diameter 30 cm and of length 400 m carry water at the rate of 50 litres/sec. The flow takes place from A and B where point B is 30 meters above A. Pressure at B is 2 ksc. Pressure at A is (Take f = 0.008)
For laminar flow in pipes, the momentum correction factor is :
In case of transmission of hydraulic power by a pipeline to a turbine in a hydroelectric power station, the maximum power transmission efficiency through the pipeline is
An orifice meter is used to measure the:
_____ is the point in a fluid stream where the diameter of the stream is the least, and fluid velocity is maximum.
Energy grade line(EGL) represents the
Air flows through a duct, and the Pitot-static tube measuring the velocity is attached to a differential manometer containing water. If the deflection of the manometer is 100 mm, assuming the density of air is constant and equals to 1.22 kg/m3, and that the coefficient of the tube is 0.98. The air velocity will be.