Dead zone in an instrument must be less than __________ percent of the scale.

More Questions from Process Control and Instrumentation

• Liquid levels in autocalves are measued by
• Process degree of freedom indicates __________ number of controllers to be used.
• The transfer function of a pure dead time system with dead time τd is
• Gas analysis is commonly done using the
• A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same
• Suppose that the gain, time constant and dead time of a process with the following transfer function:Gc(s) = 10 exp( - 0.1s)/(0.5s + 1) are known with a possible error of ± 20% of their values. The largest permissible gain Kc of a proportional controller needs to be calculated below taking the values of process gain, time constant and dead time as
• For a feed back control system to be stable, the
• __________ controller has the maximum stabilising time.
• __________ type of element is normally not used in the bimetallic thermometers.
• Flow rate of sludge is not measured by a/an

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