Process Control and Instrumentation Working principle of disappearing filament type optical pyrometer is based on the Wien's law Peltier effect Seebeck effect Kirchoff's law Wien's law Peltier effect Seebeck effect Kirchoff's law ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency. This is __________ criterion. Routh stability None of these Nyquist Bode stability Routh stability None of these Nyquist Bode stability ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The transfer function for a P-D controller is Kc(1+τD s) Kc τD s Kc/τD s Kc(1 +1/τD s) Kc(1+τD s) Kc τD s Kc/τD s Kc(1 +1/τD s) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C? Photoelectric pyrometer Thermocouples Optical pyrometer Radiation pyrometer Photoelectric pyrometer Thermocouples Optical pyrometer Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a Large area but small mass High thermal conductivity All of these Small specific heat Large area but small mass High thermal conductivity All of these Small specific heat ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) nRT/V p/nRT V/nRT nRT/P nRT/V p/nRT V/nRT nRT/P ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS