what is plc?
Answer Posted / guest
plc is difinds as programmable logic controller
| Is This Answer Correct ? | 86 Yes | 10 No |
Post New Answer View All Answers
(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
what is isloted barrier how it works and what are the main purpose.how it make safe area.
any questions on motor and energy conversions machines?
what is the minimum power (P=VI)to produce a spark?
How does a single acting, spring return ball valve actually work? Does it require continuous air supply?
what can of fault ofently come in vibration mesurement?
key phaser where is use and work
What is the exact differences between HART,FOUNDATION FIELDBUS,PROFIBUS?
in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.
how to relay switch sense the fault?
How many types of sensor
why we are using digital signals for I/O & how to measure this signals is getting or not ?
How to calibrate capillary type level transmitter
Why mixer nd grinder Is example of constant torque load not variable torque load ???
how will you check torque value during Factory acceptance Test for control valve/ESD ON/OFF VALE how will you confirm this torque value is being correct, Which document will you be refer.