- (A) CO2
- (B) CO
- (C) O2
- (D) C
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- (A) As moisture proof coating on fibres
- (B) As moth balls (insecticides)
- (C) As a fuel in furnaces
- (D) For making electrodes
- (A) Coal can be pulverised with great difficulty
- (B) Coal can’t be pulverised
- (C) Coal can be easily pulverised
- (D) Power consumption in grinding the coal will be very high
- (A) Gas yield is less
- (B) Tar yield is more
- (C) Ignition temperature of coke produced is less
- (D) Aromatic content of tar produced is more
- (A) M = 1.8 A
- (B) M = 0.5 A
- (C) M = 1.1 A
- (D) M = A
- (A) 5
- (B) 50
- (C) 500
- (D) 5000
- (A) Develops a non-luminous flame
- (B) Develops a low temperature flame
- (C) Can be done with less excess air
- (D) Provides a lower rate of heat release
- (A) Density
- (B) Porosity
- (C) Electrical resistivity
- (D) None of these
- (A) Pitch and creosote oil
- (B) Light oil and pitch
- (C) Anthracene and crecosote oil
- (D) Solar oil and pitch
- (A) Prevention of clinker formation in the oven
- (B) Controlling the dust nuisance while charging the coal
- (C) Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H2 in the gas (due to the endothermic reaction represented by C + H2O = CO + H2)
- (D) All
