Answer Posted / trideep

According to the charcter of gas in fluid mechanisam theary, it has no size and wont accumulate at the desired place/ tank if you say.. In case of liquid vice versa....

What is the cascade control

1411

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There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?

1955

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How many interlocks at turbine? Plz explain briefly

1950

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what is the procedure to callibrate temp controller ,pressure controller,etc. suppose a temp controller showing error 1.5 degree centigrate how can i minimize it.

2342

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why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

2869

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What are different types of orifice plates? State their uses.

1145

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what is difference between HOT permit and cold permit

2187

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what is SIL 1 2 3

2026

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What is Alpha & Beta fctors related to Orifice Plate & its relation with flow?

3363

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i need some objective type questions in instrumentation

4892

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

1892

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why we us isolation barrier in hazardous area how it works to protect the area and please clarify its current flow.

1947

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Define the difference between a stable versus an unstable controlled system and some of the tools you might use to be able to detect when this is happening and assumptions used for control system application design that could contribute to instability

1828

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How to Calibrate Interface Level Troll in field

1352

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What is the exact differences between HART,FOUNDATION FIELDBUS,PROFIBUS?

3450

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