The bulb of a vapour pressure thermometer is a
A.primary element
B.secondary element
C.manipulating element
D.functioning element
Category: Instrumentation and Process Control Mcqs
Bourdon gauges are used to measure pressures
A.above 30 psia
B.below 30 psia
C.below 3 microns
D.below 14.7 psia
A convenient unit for expressing very low pressures is the micron. A micron abbreviated u is
A.0.1 mm of Hg column absolute pressure at 0?C
B.1 mm of Hg column absolute pressure at 0?C
C.0.01 mm of Hg column absolute pressure at 0?C
D.0.001 mm of Hg column absolute pressure at 0?C
Composition of CO2 is the flue gas is determined by
A.polarograph
B.mass spectrometer
C.thermal conductivity cell
D.polarimeter
Vapour pressure thermometers work on the principle of
A.increase of vapour pressure with decrease in temperature
B.increase of vapour pressure with increase in temperature
C.volumetric expansion of vapour with increase in temperature
D.increase in electric resistance with increase in temperature
Radiation pyrometers are used to measure the temperature in the range of
A.800? to 2000?C
B.100? to 600?C
C.300? to 1100?C
D.0? to 400?C
The solution will be alkaline when pH is
A.less than 7
B.equal to 7
C.greater than 7
D.less than or equal to 7
Bimetallic thermometer works on the principle of
A.increase in electrical resistance with increase in temperature
B.linear thermal expansion of metals
C.volumetric expansion of metals
The pointer of a vapour pressure thermometer is a
A.primary element
B.secondary element
C.manipulating element
D.functioning element
Polarograph is used for the analysis of
A.solids
B.liquids
C.gases
D.liquids and gases
