Process Control and Instrumentation If response of a control system is to be free of offset and oscillation, the most suitable controller is Proportional-integral (PI) controller Proportional integral-derivative (PID) controller Proportional-derivative(PD)controller Proportional controller Proportional-integral (PI) controller Proportional integral-derivative (PID) controller Proportional-derivative(PD)controller Proportional controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The unit step response of the transfer function 1/(s² + 2s + 3) Is unstable Has a damped oscillatory characteristics Has a non-zero slope at the origin Is overdamped Is unstable Has a damped oscillatory characteristics Has a non-zero slope at the origin Is overdamped ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Reset rate is the another term used for __________ time. Derivative None of these Dead Integral Derivative None of these Dead Integral ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the Laplace transform of sin t ? 1/(s² - 1) S/(s² - 1) 1/(s² + 1) S/(s² + 1) 1/(s² - 1) S/(s² - 1) 1/(s² + 1) S/(s² + 1) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The term analogous to voltage in a single tank system is the Level of liquid Liquid volume in the tank Heat content of the system Flow rate Level of liquid Liquid volume in the tank Heat content of the system Flow rate 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) Becomes more oscillatory (frequency increases) Becomes less oscillatory (frequency decreases) Gets amplified (magnitude increases) Gets attenuated (magnitude decreases) Becomes more oscillatory (frequency increases) Becomes less oscillatory (frequency decreases) Gets amplified (magnitude increases) ANSWER DOWNLOAD EXAMIANS APP
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