EXAMIANS
For a feed back control system to be stable, the
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A sinusoidal variation in the input passing through a linear first order system
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pH meter has
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Which of the following is a desirable characteristic of an instrument?
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Which of the following is not the triple point of water?
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The transfer function of a pure dead time system with dead time τd is
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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
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The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches
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The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.
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In a closed loop system, the process to be controlled is an integrating process with transfer function l/2s. The controller proposed to be used in an integral controller with transfer function 1/T₁s. When a step change in set point is applied to such a closed loop system, the controlled variable will exhibit
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