Hamad Process Control and Instrumentation 04/05/2021 A. Helium B. Hydrogen C. Nitrogen D. None of these Related Mcqs: Very low pressure is expressed in microns (μ), which is equal to ____________ mm of Hg column (absolute) at 0°C?A. 0.0001 B. 0.001 C. 0.01 D. 0.1... 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 ________________?A. Air B. A metal powder or graphite C. Oil D. Mercury... Working principle of radiation pyrometer is based on the __________________?A. Wien’s law B. Kirchoff’s law C. Stefan Boltzmann law D. Seebeck effect... Thermal wells are used in the temperature measurement to____________________?A. Guard against corrosive and oxidising action on thermocouple materials B. Reduce measuring lag C. Increase the fidelity D. Increase the sensitivity... Working principle of mercury in glass thermometer is__________________?A. Volumetric expansion B. Pressure rise with temperature C. Linear expansion D. None of these...
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