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 Chromel-alumel Iron-constantan None of these Platinum-platinum/rhodium Chromel-alumel Iron-constantan None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit? Peltier effect Joule heating effect Seebeck effect Thomson effect Peltier effect Joule heating effect Seebeck effect Thomson effect ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples can measure the maximum temperature? Platinum-rhodium Tungsten-molybdenum Chromel-alumel Iron-constantan Platinum-rhodium Tungsten-molybdenum Chromel-alumel Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Mass spectrometer is used for the composition analysis of Isotopes Alloys None of these Solids Isotopes Alloys None of these Solids ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following flow-metering instru-ments is an areameter? Rotameter Pitot tube Venturimeter Hot wire anemometer Rotameter Pitot tube Venturimeter Hot wire anemometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with Air Oil Mercury A metal powder or graphite Air Oil Mercury A metal powder or graphite ANSWER DOWNLOAD EXAMIANS APP
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