Process Control and Instrumentation Which of the following thermocouples is capable of measuring a temperature of -50°C? Iron-constantan Chromel - alumel Platinum - platinum + rhodium Copper - constantan Iron-constantan Chromel - alumel Platinum - platinum + rhodium Copper - constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells are used in the temperature measurement to Increase the sensitivity Guard against corrosive and oxidising action on thermocouple materials Increase the fidelity Reduce measuring lag Increase the sensitivity Guard against corrosive and oxidising action on thermocouple materials Increase the fidelity Reduce measuring lag ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Measurement of pressure in ammonia reactor is done by Bourdon gauge Pirani guage U-tube manometer Inclined tube manometer Bourdon gauge Pirani guage U-tube manometer Inclined tube manometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The temperature range for which copper resistance thermometer can be used is __________ °C 500 to 900 350 to 750 0 to 150 -200 to 150 500 to 900 350 to 750 0 to 150 -200 to 150 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing Helium Nitrogen None of these Hydrogen Helium Nitrogen None of these Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C. - 79 and 395 - 10 and 425 - 51 and 439 - 39 and 350 - 79 and 395 - 10 and 425 - 51 and 439 - 39 and 350 ANSWER DOWNLOAD EXAMIANS APP
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