Process Control and Instrumentation In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the __________ variable. Load Manipulated None of these Controlled Load Manipulated None of these Controlled ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation 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 Underdamped response Undamped response Unstable response Overdamped response Underdamped response Undamped response Unstable response Overdamped response ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Bimetal strips are not used in Thermostats Relays for opening & closing of electrical circuits Bimetallic thermometers Thermocouples Thermostats Relays for opening & closing of electrical circuits Bimetallic thermometers Thermocouples ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A sinusoidal variation in the input passing through a linear first order system Gets attenuated (magnitude decreases) Gets amplified (magnitude increases) Becomes more oscillatory (frequency increases) Becomes less oscillatory (frequency decreases) Gets attenuated (magnitude decreases) Gets amplified (magnitude increases) Becomes more oscillatory (frequency increases) Becomes less oscillatory (frequency decreases) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Flow rate through an orifice is __________ the pressure differential. Inversely proportional to the square of Inversely proportional to the square root of Proportional to the square root of Proportional to Inversely proportional to the square of Inversely proportional to the square root of Proportional to the square root of Proportional to ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A negative gain margin expressed in decibels means a/an __________ system. Critically damped None of these Unstable Stable Critically damped None of these Unstable Stable ANSWER DOWNLOAD EXAMIANS APP
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