can i get any detail of interview question asked for
instrumentation,plc,scada ,dcs..............
Answers were Sorted based on User's Feedback
Answer / prashant sanas
What is the difference between PLC and DCS control system?
PLC is an completely industrial automation system, where as DCS is an computerized control system.
PLC is economicaly low cost, but the DCS costs high.
Also,
DCS stands for Distribute control system
Actually DCS is a network hub which can collect the Required Info from the other PLC's (say 2 or 3 & so on..) and then processed it... to get the full info about the Plant Operations(say current rating Temp. voltage load and Power Factor etc)..
ok
| Is This Answer Correct ? | 10 Yes | 1 No |
What is Cavitation in a control valve?
Why drum level range is given -500 to 0 mmwc pls give me that answer
A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of 4ma at 60 deg and 20 ma at 600 deg. This output (4-20ma) from the transmitter is connected to an IGBT-inverter to control a high speed (-12,000 to +12,000 RPM) DC motor. And in the inverter it is programmed as, for 4ma the motor speed will be -3,000 RPM and for 20ma the motor speed will be +10,000 RPM. The question is : If the motor speed is +5,500 (RPM), what will be the temperature? (-sign indicates that the motion is in reverse direction).
What is protocol ?
Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.
what is the difference between plant earth and instrument earth? and what type of cable( cable size ) used for both? and why ?
I am a instrument technician. recently i attend interview and face one of question for DP transmitter ,the client asking about the calibration of DP transmitter ,am answer the calibration procedure, they will ask one more question. why open LP side in atmosphere? i did not answer that question. so please help me and explain the particular question. Dear firends waiting for your valuable replay
3 Answers Qatar Petroleums, Samsung,
While preparing the graphic diagrams trend display, 3 types of trends are prepared by Yokogawa system vender. These are for process variable, manipulated variable & set point variable. Why these 3 trends are required? Explain the purpose of these 3 trends.
relation between level and differential pressure.
1.how can calibration temperature transmitter and flow transmitter? 2.
why we are using -24 vdc in plc?
What do you need to consider when installing a flowmeter
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)