Process Control and Instrumentation Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere? Platinum-platinum + rhodium Chromel-alumel Copper-constantan Iron-constantan Platinum-platinum + rhodium Chromel-alumel Copper-constantan Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal conductivity measurement com-prises the working principle of a CO₂ analyser Polarimeter Chromatograph Spectrometer CO₂ analyser Polarimeter Chromatograph Spectrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermometers is not suitable for distant reading upto 60 metres? Resistance thermometer Constant volume gas thermometer Mercury in glass thermometer Vapor pressure thermometer Resistance thermometer Constant volume gas thermometer Mercury in glass thermometer Vapor pressure thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following filled system expansion thermometer has the capability to measure the lowest temperature? Alcohol in glass thermometer Fused metal (Na or K) in steel thermometer Mercury in steel thermometer Mercury in glass thermometer Alcohol in glass thermometer Fused metal (Na or K) in steel thermometer Mercury in steel thermometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1). W = 1, Kc = 13 W = √(7/8), Kc = 45/4 W = 1/√14, Kc = 45/7√14 W = √(7/6), Kc = 46/3 W = 1, Kc = 13 W = √(7/8), Kc = 45/4 W = 1/√14, Kc = 45/7√14 W = √(7/6), Kc = 46/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Platinum resistance thermometer is the international standard for temperature measurement between Triple point of hydrogen and freezing point of antimony 13.81°K to 903.9°K Both A and B Neither A nor B Triple point of hydrogen and freezing point of antimony 13.81°K to 903.9°K Both A and B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS