1.In which princeple DP transmeter works?
2.Why UPS system is use for DCS?
3.How drum lvel controller works?
4.What is the difference between glob valve and gate valve?
5.How axial shift probe work & in which princeple it works?
Answer / mahalingam
1.The flow meters are followed by Bernoulis therom, In the DP the flow is direct proportional to the square root of flow.
2. The use of UPS to the DCS is, the DCS request un interrupted power to continue its operation. During the time of operation if the raw power supply not be available then the entire system connected with the dcs will shutdown its operation.
3. Drum level to be controlled via three element control. feed water flow, steam flow & drum levels are the control variable.
4.Normally globe valves are used in the low pressure drop with steam,Gas, hot water application where the high accurate flow is required. whereas the gate valve gives the larger pressure drop and more flow process mediums like juice and slurry applications.
Is This Answer Correct ? | 5 Yes | 2 No |
Qatar fertilizer call me for interview as Instrumentation Project Engineer. Please let me know what kind of question they asked ? ALso they said they will take Written test, any idea about this written test ?
hi friends,can u send me the link for downloading Allen_bradley_RsLogix_500_Pro_V_7.0 software with activation file.or how can i find activation file for this.
in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.
How ejector(or)evactor air pump is working in thermal power plant?
How to Calibrate Transducers? Can you give me a step by ste procedure?
Explain operation of Haskel pump.
deference between DCS and PLC including date processing and architacture.
tell about various protocols used in different plcs
Whether the DP transmitter can be utilised in the medium of Vaccum for the measurement of Level?
What is input and output of plc & dcs
flow transmitter range is 0 -500 mmwcc but the transmitter shows 12 ma for o mmwc instead of 4 ma ...how to solve this problem when we apply 375 mmwc it shows 16 ma
I want to measure flow by using DP Tx and range is 0 to 1200 Kg/cm2 ?