A. CO2
B. O2
C. NO
D. NO2
Related Mcqs:
- Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic ?
A. CO2
B. O2
C. NO
D. NO2 - Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) ?
A. V/nRT
B. nRT/V
C. nRT/P
D. P/nRT - Nitrogen gas constant volume thermometer is suitable for measuring a temperature of _____________ °C?
A. 0-100
B. < 0
C. > 100
D. > 50 - A constant volume gas thermometer employing ______________ is used to measure sub-zero (i.e., < 0°C) temperature?
A. Helium
B. Hydrogen
C. Nitrogen
D. None of these - Helium gas constant volume thermometer is suitable for the measurement of a temperature of ______________ °C?
A. < 100
B. < 0
C. > 0
D. > 800 - Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity ?
A. CO2
B. N2
C. O2
D. CO - Smoke density of the flue gas going out of the chimney is measured by a __________________?
A. Polarograph
B. Thermal conductivity meter
C. Photo electric cell
D. Chromatograph - High temperature of around 2000°C of incandescent gas mantles is measured by a/an __________________?
A. Specially designed thermocouple
B. Optical pyrometer
C. Radiation pyrometer
D. None of these - Gas analysis is commonly done using the___________________?
A. Thermal conductivity cell
B. X-ray diffraction
C. Mass spectrometer
D. Emission spectrometer - Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing ?
A. Helium
B. Nitrogen
C. Hydrogen
D. None of these
