Process Control and Instrumentation Which is the most suitable instrument for measuring pressure below 3 microns? Alphatron Ionisation gauge Mcleoid gauge Bourdon guage Alphatron Ionisation gauge Mcleoid gauge Bourdon guage ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with Oil Air A metal powder or graphite Mercury Oil Air A metal powder or graphite Mercury ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Humidity of air can be determined by a Chromatograph Polarimeter Sling psychrometer Mass spectrometer Chromatograph Polarimeter Sling psychrometer Mass spectrometer 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 -45° 45° -180° -90° -45° 45° -180° -90° 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 Overdamped response Undamped response Unstable response Underdamped response Overdamped response Undamped response Unstable response Underdamped response 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
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