Related Questions

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
For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally
A Decreases
B Increases
C Remains unchanged
D Increases exponentially
After the increase of price of oil by 40%, a family decided to reduce its oil consumption so that the expenditure for oil goes up by 26% only. If the total consumption of oil before the price rise was 10 kg per month, then what is the current consumption of oil per month (in kg)?
A 8
B 8.50
C 9
D None of these
A multigrade lubricating oil means an oil having high
A Viscosity index
B Viscosity
C Aniline point
D Flash point
If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.
A Hyperbolic
B Parabolic
C Linear
D Logarithmic
With increase in temperature, the thermal conductivity of non-metallic amorphous solids
A Decreases
B Increases
C Remains constant
D First decreases upto certain temperature and then increases
With increase in temperature, the thermal conductivity of a gas
A Increases
B Decreases
C Remains same
D May increase or decrease depending on the type of gas
With increase in temperature, the thermal conductivity of steel
A Increases
B Decreases
C Remains unchanged
D Increases exponentially
Thermal conductivity of a gas at low density, __________ with increase in temperature.
A Decreases
B Increases
C Remains unchanged
D May increase or decrease; depends on the gas
With increase in temperature, the thermal conductivity of most liquids
A Increases
B Decreases
C Remains same
D First increases upto a certain temperature and then becomes constant

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