Hydraulics and Fluid Mechanics in ME In a reaction turbine, the draft tube is used To increase the head of water by an amount equal to the height of the runner outlet above the tail race To prevent air to enter the turbine To transport water to downstream To run the turbine full To increase the head of water by an amount equal to the height of the runner outlet above the tail race To prevent air to enter the turbine To transport water to downstream To run the turbine full ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a Francis turbine runner, the numbers of blades are generally between 2 to 4 8 to 16 16 to 24 4 to 8 2 to 4 8 to 16 16 to 24 4 to 8 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The major loss of energy in long pipes is due to friction gradual contraction or enlargement sudden enlargement sudden contraction friction gradual contraction or enlargement sudden enlargement sudden contraction ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice) Q = (3Cd × a)/√(2h) Q = (2/3). Cd × a × h Q = Cd × a × 2gh Q = (Cd × a)/√(2gh) Q = (3Cd × a)/√(2h) Q = (2/3). Cd × a × h Q = Cd × a × 2gh Q = (Cd × a)/√(2gh) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The magnitude of water hammer depends upon the Elastic properties of the pipe material Elastic properties of the liquid flowing through the pipe Speed at which the valve is closed All of these Elastic properties of the pipe material Elastic properties of the liquid flowing through the pipe Speed at which the valve is closed All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a channel of rectangular section will be maximum, if Its depth is thrice the breadth Its breadth is twice the depth Its breadth is thrice the depth Its depth is twice the breadth Its depth is thrice the breadth Its breadth is twice the depth Its breadth is thrice the depth Its depth is twice the breadth ANSWER DOWNLOAD EXAMIANS APP
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