Process Control and Instrumentation Non-metallic diaphragm used as pressure sensor in instruments is generally made of Thick paper Synthetic rubber Teflon Bakelite Thick paper Synthetic rubber Teflon Bakelite 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 Embrittlement of iron occurs Both B and C Here Rusting of iron takes place Emf produced is very low of the order of microvolt Embrittlement of iron occurs Both B and C Here Rusting of iron takes place ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of radiation pyrometer is based on the Wien's law Seebeck effect Stafan-Boltzman law Kirchoffs law Wien's law Seebeck effect Stafan-Boltzman law Kirchoffs law ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf generated in a thermocouple depends on the temperature Of hot junction only Difference between hot and cold junctions Of cold junction only Difference between cold junction and atmospheric temperature Of hot junction only Difference between hot and cold junctions Of cold junction only Difference between cold junction and atmospheric temperature ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is Platinum-platinum+rhodium Either A, B or C Chromel-alumel Iron-constantan Platinum-platinum+rhodium Either A, B or C Chromel-alumel Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Dome temperature of blast furnace stove is most accurately measured by a Platinum resistance thermometer Platinum-platinum/rhodium ther-mocuple Iron-constantan thermocouple Radiation pyrometer Platinum resistance thermometer Platinum-platinum/rhodium ther-mocuple Iron-constantan thermocouple Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS