Determination of Friction Coefficient of pipe of various diameters
“1.” Relationship between Reynolds number (Re) and flow velocity (V) is:
“2.” Blasius equation is the following (valid for turbulent flow in smooth pipes with 4000< Re< 105):
“3.” Blasius equation is valid only for flow of pressure head, velocity head and datum head.
“4.” For a given pipe, friction factor depends primarily on:
“5.” If flow velocity is increased by 10 %, then friction factor increases by:
“6.” Flow is laminar in a given pipe if Reynolds number is:
“7.” Flow is fully turbulent in a given pipe if Reynolds number is:
“8.” Major head loss in pipe flow is primarily due to:
“9.” What is the headloss with a pipe diameter of 1 m and length 1.5 km where flow velocity of water is 1 m/s? (Darcy’s friction factor = 0.02, acceleration due to gravity = 9.81m/s2)
“10.” Head loss due to friction in a pipe can be reduced by: