Difine flashing , Cavitaion & Noise?
how to minimize these effects
Answer Posted / ravi
Flashing:It is formation of vapour bubbles at vena-
contracta.
Cavitation:It is formation & collapse of vapour bubbles at
Vena-contracta.
Noise:Mech Noise,Hydrodynamic Noise,Aerodynamic Noise.
These all effects can be minimised by proper sizing of
Control valve as well as proper type & material of Valve
Body.
| Is This Answer Correct ? | 13 Yes | 0 No |
Post New Answer View All Answers
What is force balance principle?
Linear amplifier.
How we connect a instrument with ground, Give brief explanation with help of diagram?
what are the steps I have to deal with?
how u calibrate sox nox co2 co in cemps?what is opacity n HPm?tell the standard parameters of cems?
What is modbus?
What are primary elements of measuring pressure? Which type of pressure can be measured by these elements?
How does your previous experience relate to the job you are applying for ?
why we are using drum level control valve air to close?
why we use 3 wire rtd direct wiring for temperature measurement instead of temperature transmitter like bearing temperature
How u will setup SPI(2007) on Citrix Server (Thin Client Mode)? Plz Justify?
Describe the functions of the Operator Interface including the considerations related to alarming and display layout/configuration/layers.
how do i tune dearator pr control valve using PID. we set the set point is 0.6kg/cm2 now i want 0.5 to 0.7kg/cm2 limits so what should i give p,i,d values. then pls explain how do set pid values for control valve tuning?
where proximity sensor installed on tank in loading arm application
If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?