When a pump casing is filled with liquid before it is started, it is called as                  

Related MCQs

• When the casing in a centrifugal pump decelerates the flow, what increases?
• A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is
• The ratio of quantity off liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as
• The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)
• A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)
• Ratio of pump or turbine with reference pump or turbine is called as                  
• The total pressure on the top of a closed cylindrical vessel completely filled up with a liquid is
• The total pressure on the top of a closed cylindrical vessel of radius (r) completely filled up with liquid of specific weight (w) and rotating at (ω) rad/s about its vertical axis, is
• Radial flow reaction turbines contain spiral casing which area                        
• The casing of radial flow reaction turbine is made of spiral shape, so that water may enter the runner