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
Styrene-butadiene-rubber (SBR) as compared to natural rubber has
A Poorer tensile strength
B Poorer resistance to oxidation
C Greater amount of heat build-up under heavy loading
D All of the above
Styrene butadiene rubber (SBR) as compared to natural rubber has
A Poor tensile strength
B Poorer resistance
C Greater amount of heat build up heavy loading
D All of the above
Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
A Ammonium alum
B Potassium alum
C Both A & B
D Neither A nor B
Main constituent of natural rubber is
A Polystyrene
B Polyisoprene
C Polybutadiene
D Poly chloroprene
In natural uranium, the constituents of three naturally occurring isotopes are
A U234 = 0.006%, U235 = 0.712% and U238 = 99.282%
B U234 = 0.712%, U235 = 0.006% and U238 = 99.282%
C U234 = 99.282%, U235 = 0.006% and U238 = 0.712%
D U234 = 0.006%, U235 = 99.282% and U238 = 0.712%
Main constituents of benzol are
A benzene, toluene & xylene
B tar & creosote
C anthracene & phenol
D ammonia & phenol
Main constituents of biogas are
A Methane and carbon monoxide
B Butane and carbon monoxide
C Methane and carbon dioxide
D Ethylene and carbon dioxide
The main mineral constituents of the continental mass water ________ and alumina.
A Iron Oxide
B Silica
C Water
D Oxygen
Main constituents of portland cement are calcium aluminate and
A Gypsum
B Silicates
C Sodium silicate
D Carbonates

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