Process Control and Instrumentation Working principle of disappearing filament type optical pyrometer is based on the Kirchoff's law Wien's law Peltier effect Seebeck effect Kirchoff's law Wien's law Peltier effect Seebeck effect ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It can be used to measure sub zero temperature, because at lower temperature Emf produced is very low of the order of microvolt Rusting of iron takes place Both B and C Here Embrittlement of iron occurs Emf produced is very low of the order of microvolt Rusting of iron takes place Both B and C Here Embrittlement of iron occurs ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is Chromel-alumel Iron-constantan Platinum-platinum+rhodium None of these Chromel-alumel Iron-constantan Platinum-platinum+rhodium None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is G/H H(1 + G) G/(1 + H) H/G G/H H(1 + G) G/(1 + H) H/G ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples has the least temperature measurement range? Platinum-platinum/rhodium Copper-constantan Chromel-alumel Iron-constantan Platinum-platinum/rhodium Copper-constantan Chromel-alumel Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Silver point temperature is __________ °C. 960.5 1060.5 860.5 760.5 960.5 1060.5 860.5 760.5 ANSWER DOWNLOAD EXAMIANS APP
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