Answer / sivakumar.s

with feed back is called closed loop 
without feed back is called open loop

1.what is beta in control valves? 2.what is the condition followed by light in LASERs? 3.1kg/cm2=?psi 4.Integral action reduces what? 5.about vena contracta 6.a simple RC circuit 7.thermistor material's temp coefficient of resistance 8.if wave passes through the thicker area of a chord to a thinner area what changes will occur to wavelength? 9.if 4-20 mA represents 0-10 kg/cm2 what will be the current when pressure is 5 kg/cm2.................

0 Answers   Lurgi,

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what is commissioning.

2 Answers   Takreer,

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what is the basic working principle of I/P and Positioner in any control valve.

12 Answers   Essar, Visa Steel,

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give classification of transducer based on type of application

2 Answers  

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what is the working principal of pribe

0 Answers  

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what does the ratio 800-400-300-200/1-1-1-1-1 in the specification of current transformer indicates?

0 Answers  

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What is Modbus communication

0 Answers  

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principle of automatic votage regulator

0 Answers   Bhel,

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how to calculate MMWC values in to Tonns(MMWC values showing in DP transmitter and Tonns value showing in Totalizer). please tell me details?

2 Answers   Chemin C I, MSP,

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What is force balance principle?

0 Answers  

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How many types of sensors are used in instrumentation & what are names

1 Answers   CTC,

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regarding level tx i would like to know how to select the range of the level transmitter in a closed drum(steam drum or deaerator)?

1 Answers  

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