Process Control and Instrumentation Which thermocouple can be used to measure a temperature of around 1400°C ? Aluminium-chromel Copper-constantan None of these Platinum-platinum+rhodium Aluminium-chromel Copper-constantan None of these Platinum-platinum+rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Identify an unbounded input from inputs whose transfer functions are given below 1/S 1 1/S² 1/(S² + 1) 1/S 1 1/S² 1/(S² + 1) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Photoelectric pyrometers are suitable in the temperature range of __________ °C. 800-2500 400-1600 800-1600 400-1000 800-2500 400-1600 800-1600 400-1000 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is never used as an element of industrial resistance thermometer? Lead 30% iron + 70% nickel Copper Nickel Lead 30% iron + 70% nickel Copper Nickel 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 Undamped response Underdamped response Unstable response Overdamped response Undamped response Underdamped response Unstable response Overdamped response ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is -180° 45° -90° -45° -180° 45° -90° -45° ANSWER DOWNLOAD EXAMIANS APP
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