Answer / sanjay goswami

Two probes are used to have a counter check on pulse
failure and to ensure pulse intregrity.Means if one probes
misses some pulses you can get an alarm or error message on
that

Answer / janes

Turbine Flowmeter is used for the Mass flow measurment. For
Massflow meter, temp and pressure data to be taken in
account to calculate the Massflow rate.

what can of fault ofently come in vibration mesurement?

0 Answers  

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which instrument is most commonly used to observe the external features of a grasshopper's abdomen?

1 Answers  

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what is wave length were using ?

0 Answers  

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what deference between panel earth and systemearth

0 Answers   Tecnimont,

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what is the conversion factor for nm3 to kg/hr in air flow

4 Answers  

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Explain PID controller tuning & any one method used for it.

1 Answers   L&T, Oil India,

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What is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

0 Answers   ADMA OPCO,

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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.

0 Answers  

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i have height of stem drum level 1000mm.how i calculate the DP transmitter

2 Answers  

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explain key exchanges in all security modes WPA,WPA2,TLS?

0 Answers  

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What is the procedure of DP switch calibration 

2 Answers   NOCL,

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A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

0 Answers   MNC,

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