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 None of these Chromel-alumel Platinum-platinum+rhodium Iron-constantan None of these Chromel-alumel Platinum-platinum+rhodium Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells are used in the temperature measurement to Reduce measuring lag Increase the sensitivity Increase the fidelity Guard against corrosive and oxidising action on thermocouple materials Reduce measuring lag Increase the sensitivity Increase the fidelity Guard against corrosive and oxidising action on thermocouple materials ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following instruments is not used for measuring sub-zero (<0°) temperatures? Platinum resistance thermometer Vapor pressure thermometer Mercury in glass thermometer Radiation pyrometer Platinum resistance thermometer Vapor pressure thermometer Mercury in glass thermometer Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Continuous measurement of moisture content of paper in paper industry is done by measuring the None of these Magnetic susceptibility Electrical resistance through the paper Thermal conductivity through the paper None of these Magnetic susceptibility Electrical resistance through the paper Thermal conductivity through the paper ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The __________ of a vapor pressure thermometer is a secondary element. Bulb Bourdon tube None ofthese Pointer Bulb Bourdon tube None ofthese Pointer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by Increasing the diameter of the tube Using steel tube in place of glass tube Filling nitrogen under pressure in the stem Accounting for the tube expansion Increasing the diameter of the tube Using steel tube in place of glass tube Filling nitrogen under pressure in the stem Accounting for the tube expansion ANSWER DOWNLOAD EXAMIANS APP
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