Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Is 30° Is 90° at the most Approaches 180° asymptotically Is 120° Is 30° Is 90° at the most Approaches 180° asymptotically Is 120° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A typical example of a physical system with under damped characteristic is a CSTR with first order reaction Thermocouple kept immersed in a liquid filled thermowell U-tube manometer Spring loaded diaphragm valve CSTR with first order reaction Thermocouple kept immersed in a liquid filled thermowell U-tube manometer Spring loaded diaphragm valve ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which thermocouple can be used to measure a temperature of around 1400°C ? Copper-constantan Aluminium-chromel None of these Platinum-platinum+rhodium Copper-constantan Aluminium-chromel None of these Platinum-platinum+rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Routh stability method uses __________ loop transfer function. Neither A nor B Either A or B Open Closed Neither A nor B Either A or B Open Closed ANSWER DOWNLOAD EXAMIANS APP
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 controller Proportional-derivative(PD)controller Proportional-integral (PI) controller Proportional integral-derivative (PID) controller Proportional controller Proportional-derivative(PD)controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation What is the Laplace transform of sin t ? S/(s² + 1) 1/(s² + 1) 1/(s² - 1) S/(s² - 1) S/(s² + 1) 1/(s² + 1) 1/(s² - 1) S/(s² - 1) ANSWER DOWNLOAD EXAMIANS APP
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