Preventing cavitation in centrifugal pumps involves ensuring that the Net Positive Suction Head Available (NPSHA) is significantly greater than the Net Positive Suction Head Required (NPSHR) by the pump. Measures that increase NPSHA or decrease NPSHR help prevent cavitation.
Identify incorrect statement pertaining to prevention of cavitation in centrifugal pumps. - (5) Question not attempted
Asked in Assistant Eng. (Mechanical) Competitive Examination, 2023 · Topic: Mechanics (Fluid Statics and Dynamics (Continuity Equation, Bernoulli's Theorem))
More Physics questions
- If Q is actual discharge and H is actual head then the unit discharge Qu of a water turbine will be given by - (1) $Q_{u} = \frac{Q} {H^{3/4}}$ - (2) $Q_{u} = \frac{Q}{H^2}$ - (3) $Q_{u} = \frac{Q}{H^{1/2}}$ - (4) $Q_{u} = \frac{Q}{H^{5/4}}$ - (5) Question not attempted
- If a multi-jet Pelton wheel has n number of jets, then its specific speed is ______ times the specific speed for a single jet Pelton wheel. - (5) Question not attempted
- Boundary layer separation is caused by - (5) Question not attempted
- According to Chezy's formula, velocity of flow through a pipeline is given by – - (1) $v = m\sqrt{Ci}$ - (2) $v = i\sqrt{mC}$ - (3) $v = C^2\sqrt{mi}$ - (4) $v = C\sqrt{mi}$ - (5) Question not attempted Where m is hydraulic mean depth and i is head lost in friction per unit length and ‘C’ is the Chezy's constant.
- Mechanical efficiency of a centrifugal pump is - (5) Question not attempted
- Centrifugal pumps dealing with mud, slurry and sewage have - (5) Question not attempted
- What is the value of coefficient of discharge when the area of jet of liquid at outlet is equal to the area of mouthpiece ?
- If M is metacentre, B is the centre of buoyancy and G is the centre of gravity, then the condition for instability of a floating body is