Process Control and Instrumentation Which of the following thermocouples has the least temperature measurement range? Copper-constantan Platinum-platinum/rhodium Iron-constantan Chromel-alumel Copper-constantan Platinum-platinum/rhodium Iron-constantan Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For a feed back control system to be stable, the Poles of the closed loop transfer function should lie in the right half of the complex plane Poles of the closed loop transfer function should lie in the left half of the complex plane Roots of the characteristic equation should be real Bode plots of the corresponding open loop transfer function should monotoni-cally decrease Poles of the closed loop transfer function should lie in the right half of the complex plane Poles of the closed loop transfer function should lie in the left half of the complex plane Roots of the characteristic equation should be real Bode plots of the corresponding open loop transfer function should monotoni-cally decrease ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference? Peltier effect Thomson effect None of these Seebeck effect Peltier effect Thomson effect None of these Seebeck effect ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value. 95 87.5 63.2 100 95 87.5 63.2 100 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature measuring instruments are standardised mostly with __________ points of pure substances. Neither A nor B Here Melting Both A & B Here Boiling Neither A nor B Here Melting Both A & B Here Boiling ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following can not measure a temperature of 1600°C ? Photo-electric pyrometer Thermocouple Platinum resistance thermometer Radiation pyrometer Photo-electric pyrometer Thermocouple Platinum resistance thermometer Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS