Answer / abhishek sharma

Fail Safe conditon means when ever if input main supply
fail to plc processor then on regaining power it takes all
its origainal data form its previous conditions

Answer / harkishan

it is that condition in system at which the system shuts off
due to some error or complication in the suplly to make the
system stable from errorneous supply.

Answer / sai kiran.c

boss....... fail safe condition is that ..making the device
to hav a safe condition from the failures.
so it prevents the failures or damage if any event is runned
faulty or causes damage to productivity in activity

Answer / prakash patel

Failsafe means plc or marshalling power supply card in redundant system,means 2oo1. if 1 card fail than other charge card in use. It is failsafe condition if total plant shut down , memory w'nt loss in pc.

if conical type tank in top LEFT side solid material coming but LT MOUNTED IN TOP OF LEFT SIDE, how to measure ultrasonic level transmitter ?

1 Answers   Cairn,

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What is Cavitation?

2 Answers   Gujarat Borosil,

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Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...

0 Answers   Adgas, GAIL, Oil India, ONGC,

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Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?

0 Answers  

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how to relay switch sense the fault?

0 Answers   ME,

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describe flow nozzel principle?

0 Answers   SEWA,

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What is difference between loop and zone ?

5 Answers   Adgas, Bilt,

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I want to measure and control level in tank of size 10*5 filled with gasoline, so plz give me the solution with clear details. how to select transmitter and sensors.

0 Answers  

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kindly tell where orifice,nozzle,air foil,ventury used in flow measurement?

1 Answers  

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What is open loop and close loop?

4 Answers   L&T, Pearl Distillery,

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how eddy current loss in probe and induced gap voltage accros probe trip and shaft

1 Answers   Reliance,

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what is ABB DCS SYSTEM?

2 Answers   OMV,

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