$2.$ It is desired to increase the flow rate by $100\%$ in a pipeline with a fully rough turbulent flow. Which of the following changes should be made to the pipe length and$/$or diameter to keep the pressure drop in the pipeline constant? Assume that there is no fasteners in the pipeline that would cause minor losses and that the flow is fully rough turbulent after the changes made. Assume that fluid is incompressible.

A$)$ The pipe length should be reduced by $50\%$ while the pipe diameter should remain constant.

B$)$ The pipe length should be kept constant and the pipe diameter should be increased by $100\%$ at the same time.

C$)$ The pipe length should be increased by $20\%$ and the pipe diameter should be reduced by $15\%$ at the same time.

D$)$ The pipe length should be reduced by $50\%$ and the pipe diameter should be increased by $15\%$ at the same time.

E$)$ The pipe length should be reduced by $20\%$ and the pipe diameter should be increased by $45\%$ at the same time.It is desired to increase the flow rate by $100\%$ in a pipeline with a fully rough turbulent flow.

Which of the following changes should be made to the pipe length and$/$or diameter to keep

the pressure drop in the pipeline constant? Assume that there is no fasteners in the pipeline

that would cause minor losses and that the flow is fully rough turbulent after the changes

made. Assume that fluid is incompressible.

A$)$ The pipe length should be reduced by $50\%$ while the pipe diameter should remain

constant.

B$)$ The pipe length should be kept constant and the pipe diameter should be increased by

$100\%$ at the same time.

C$)$ The pipe length should be increased by $20\%$ and the pipe diameter should be reduced

by $15\%$ at the same time.

D$)$ The pipe length should be reduced by $50\%$ and the pipe diameter should be increased by

$15\%$ at the same time.

E$)$ The pipe length should be reduced by $20\%$ and the pipe diameter should be increased

by $45\%$ at the same time.

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