Process Control and Instrumentation In second order underdamped system, Decay ratio = (overshoot)² Decay ratio = overshoot Overshoot increases for increasing damping co-efficient Large damping co-efficient means smaller damping Decay ratio = (overshoot)² Decay ratio = overshoot Overshoot increases for increasing damping co-efficient Large damping co-efficient means smaller damping ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermocouple in a thermal well behaves as a true Second order system (underdamped) Second order system (overdamped) Multiple first order system First order system Second order system (underdamped) Second order system (overdamped) Multiple first order system First order system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation 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 12, 0.4, 0.08 12, 0.6, 0.12 8, 0.6, 0.12 8, 0.6, 0.08 12, 0.4, 0.08 12, 0.6, 0.12 8, 0.6, 0.12 8, 0.6, 0.08 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples has the least temperature measurement range? Copper-constantan Chromel-alumel Platinum-platinum/rhodium Iron-constantan Copper-constantan Chromel-alumel Platinum-platinum/rhodium Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the __________ variable. Controlled None of these Load Manipulated Controlled None of these Load Manipulated ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation 0n-off control which is a special case of proportional control, has a band width of about __________ percent. 25 100 75 25 100 75 ANSWER DOWNLOAD EXAMIANS APP
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