A horizontal pipe 30 cm in diameter and 420 m long has a wall thickness of 1 cm. The pipe is commercial steel and carries water from a reservoir to a level 100 m below and discharges into the air.  A rotary valve is installed at the downstream end. Calculate the maximum water hammer pressure that can be expected on the valve if it closes in a 0.5 sec period (neglect longitudinal stresses). Also determine the total (maximum) pressure the pipeline will be exposed to during the water hammer phenomenon.

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A: This question is related to the Fluid Mechanics from Civil Engineering. This is mcq type question.

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Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?