Process Control and Instrumentation The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple. Platinum-platinum/rhodium None of these Iron-constantan Chromel-alumel Platinum-platinum/rhodium None of these Iron-constantan Chromel-alumel 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 Both B and C Here Embrittlement of iron occurs Rusting of iron takes place Emf produced is very low of the order of microvolt Both B and C Here Embrittlement of iron occurs Rusting of iron takes place Emf produced is very low of the order of microvolt ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Optical activity of a solution can be determined using a Dilatometer Polarograph Refractrometer Polarimeter Dilatometer Polarograph Refractrometer Polarimeter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A bolometer is Neither A nor B Here An element which senses optical input and delivers thermal output Used for the measurement of thermal radiation Both A & B Here Neither A nor B Here An element which senses optical input and delivers thermal output Used for the measurement of thermal radiation Both A & B Here 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. 63.2 100 87.5 95 63.2 100 87.5 95 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal conductivity measurement com-prises the working principle of a Spectrometer CO₂ analyser Chromatograph Polarimeter Spectrometer CO₂ analyser Chromatograph Polarimeter ANSWER DOWNLOAD EXAMIANS APP
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