Process Control and Instrumentation Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is Either A, B or C Platinum-platinum+rhodium Chromel-alumel Iron-constantan Either A, B or C Platinum-platinum+rhodium Chromel-alumel Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In second order underdamped system, Overshoot increases for increasing damping co-efficient Decay ratio = (overshoot)² Large damping co-efficient means smaller damping Decay ratio = overshoot Overshoot increases for increasing damping co-efficient Decay ratio = (overshoot)² Large damping co-efficient means smaller damping Decay ratio = overshoot 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 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 12, 0.4, 0.08 12, 0.6, 0.12 8, 0.6, 0.12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is never used as an element of industrial resistance thermometer? Copper 30% iron + 70% nickel Nickel Lead Copper 30% iron + 70% nickel Nickel Lead ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The level of a liquid under pressure can be determined using Differential pressure manometer Air-trap system Diaphragm box system Bubbler system Differential pressure manometer Air-trap system Diaphragm box system Bubbler system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Humidity of air can be determined by a Polarimeter Sling psychrometer Mass spectrometer Chromatograph Polarimeter Sling psychrometer Mass spectrometer Chromatograph ANSWER DOWNLOAD EXAMIANS APP
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