What is the efficiency of the simple elbow type draft tube?

Related MCQs

• The simple elbow draft tube is placed close to the_            
• The simple elbow draft tube helps to cut down the cost of excavation.
• The exit diameter for a simple elbow draft tube should be               
• The hydraulic efficiency of a Francis turbine is 90%, the mechanical efficiency is 95% and the volumetric efficiency is assumed to be 100%. Fine the overall efficiency (in %)?
• The hydraulic efficiency of a Kaplan turbine is 95%, the mechanical efficiency is 93% and the volumetric efficiency is assumed to be 100%. Fine the overall efficiency (in %)?
• What is the maximum value of efficiency in a draft tube?
• The efficiency of the draft tube is ratio of                
• Efficiency of a draft tube gives                    
• The efficiency of the draft tube depends on the             
• Efficiency of a draft tube is directly proportional to its