Process Control and Instrumentation The time constant of a first order process with resistance R and capacitance C is 1/RC R + C R - C RC 1/RC R + C R - C RC ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A first order system with unity gain and time constant τ is subjected to a sinusoidal input of frequency w = 1/τ. The amplitude ratio for this system is 1/√2 0.5 0.25 1 1/√2 0.5 0.25 1 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Positioning controllers are used for High loads Low loads Temperature changes Flow rate changes High loads Low loads Temperature changes Flow rate changes ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following judges the accuracy of an instrument? Drift None of these Static error Dead zone Drift None of these Static error Dead zone ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable. None of these Controlled Manipulated Load None of these Controlled Manipulated Load ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a variable area flow meter? Rotameter Piston type meter Orifice and tapered plug meter Magnetic flow meter Rotameter Piston type meter Orifice and tapered plug meter Magnetic flow meter ANSWER DOWNLOAD EXAMIANS APP
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