Process Control and Instrumentation If response of a control system is to be free of offset and oscillation, the most suitable controller is Proportional-derivative(PD)controller Proportional integral-derivative (PID) controller Proportional controller Proportional-integral (PI) controller Proportional-derivative(PD)controller Proportional integral-derivative (PID) controller Proportional controller Proportional-integral (PI) controller ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Stroboscope is used for the measurement of Depression of freezing point Frequency of light Liquid level under pressure Rpm of a flywheel Depression of freezing point Frequency of light Liquid level under pressure Rpm of a flywheel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The open loop transfer function of a control system is KR/(1 + TS) . This represents A first order time lag Dead time system A first order system A second order system A first order time lag Dead time system A first order system A second order system 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 Overdamped response Undamped response Unstable response Underdamped response Overdamped response Undamped response Unstable response ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For measuring the temperature of a red hot furnace, which is the most suitable instrument? Thermocouple Optical pyrometer Platinum resistance thermometer Bimetallic thermometer Thermocouple Optical pyrometer Platinum resistance thermometer Bimetallic thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Gas chromatography is used for the measurement of Temperature Pressure Flow rate Concentration Temperature Pressure Flow rate Concentration ANSWER DOWNLOAD EXAMIANS APP
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