Process Control and Instrumentation The transfer function for a P-D controller is Kc(1+τD s) Kc/τD s Kc(1 +1/τD s) Kc τD s Kc(1+τD s) Kc/τD s Kc(1 +1/τD s) Kc τD s ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A negative gain margin expressed in decibels means a/an __________ system. None of these Critically damped Unstable Stable None of these Critically damped Unstable Stable ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an Magnetic flow meter Hot wire anemometer Orificemeter Venturimeter Magnetic flow meter Hot wire anemometer Orificemeter Venturimeter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following can not measure a temperature of 1600°C ? Radiation pyrometer Thermocouple Platinum resistance thermometer Photo-electric pyrometer Radiation pyrometer Thermocouple Platinum resistance thermometer Photo-electric pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if Kc is increased Kc is reduced Derivative control action is introduced Integral control action is introduced Kc is increased Kc is reduced Derivative control action is introduced Integral control action is introduced ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The amplitude ratio for the sinusoidal response of a __________ is 1. First order system None of these Transportation lag Second order system First order system None of these Transportation lag Second order system ANSWER DOWNLOAD EXAMIANS APP
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