Why can’t rotary pumps non-lubricate water?

Related MCQs

• Rotary pumps do not function well under               
• Rotary pumps are commonly used to circulate_              
• Reciprocating pumps has efficiency compared to centrifugal pumps
• The parameter that disturbs the working of the rotary pump is_          
• Capacity of a rotary pump is defined as                  
• The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)
• The discharge through a wholly drowned orifice is given by (where H1 = Height of water (on the upstream side) above the top of the orifice, H2 = Height of water (on the downstream side) above the bottom of the orifice, and H = Difference between two water levels on either side of the orifice)
• To produce a high head by multistage centrifugal pumps, the impellers are connected… P
• The main function of centrifugal pumps are to                
• Centrifugal pumps are used to transport