B. Carburetted water gas

C. Coke oven gas

D. Gobar gas

A. None of these

B. Natural gas

C. Coke oven gas

A. 19

B. 29

C. 21

A. Determines N2 in flue gas indirectly

B. Cant determine CO in flue gas, if it is < 0.2%

C. Gives flue gas analysis on dry basis

A. Any of the above

B. Flue gas temperature

D. Flame temperature

A. S & P content

C. Heating value

D. Fusion point of ash

A. All tar is evolved at 700C

B. Hard semi-coke starts shrinking at 600C

A. Very low ash content (8-10%)

B. Low fusion point of ash

C. High caking index

A. Lower than

B. Either A. or B.; depends on the type of coal

C. Same as

A. Premature fuels with low calorific value

C. Solid fuels

D. Liquid fuels

A. Calorific value

B. Ignition temperature

D. Sulphur content

B. Underground gasification of coal

C. Direct hydrogenation of coal

D. Complete combustion of coal

A. Classified

B. Carbonised

D. Non-caking

A. Coke oven gas

B. Hydrogen

C. Blast furnace gas

A. 150-200

B. 70-100

D. 2-Jan

A. C.V. of natural gas is about 10000 KCal/Nm3

C. C.V. of LPG is about 26000 kcal/Nm3 (11500 kcal/kg)

D. Main constituents of LPG are propane and butane

A. Improves its coking properties

B. Reduces its ash & sulphur content

C. Increase the fusion point of its ash by removing chlorine compounds

A. Volatile matter

B. Ash

D. Moisture

A. Property of tackiness is exhibited by uncured rubber

B. Polythene generally has an excellent resistance to ultra violet rays

D. Sharp melting point is not observed in thermoplastic polymers

B. Inferior coke compared to low temperature carbonisation

C. Less of gases compared to liquid products

D. Large quantity of tar compared to low temperature carbonisation

A. Bulk density

B. Reactivity

B. Kopper-Totzek process

C. Winkler process

D. All can produce same methane content

A. Higher calorific value

B. Lower hydrogen content

C. Both A. and B.

A. Hydrogen

C. Carbon

D. Sulphur

B. Bagasse

C. Sewage gas

D. Refinery gas

A. 2.5

C. 1.5

D. 3.5

A. NCV at constant pressure

B. NCV at constant volume

C. GCV at constant pressure

A. No change in the c.v. of coke oven gas

B. Increase in its throughput

C. Increase in the c.v. of coke oven gas

B. Gives an idea of the fusion temperature of ash

C. Is related to its calorific value

D. Is a measure of its caking tendency

A. Phenolic water

B. Carbon dioxide

C. Air

A. pensated by increase in CO & H2 content

B. Methane content in the coke oven gas decreases and carbon monoxide content increases

C. Calorific value of the coke oven gas decreases due to cracking of hydrocarbons which is not

D. Hydrogen content of coke oven gas increases due to cracking of hydrocarbons

A. Producer gas

C. Natural gas

D. Coke oven gas

B. 10

C. 35

D. 5

A. Ash

C. Free impurities

D. Volatile matter

A. Low carbon conversion efficiency is achieved

B. Coking coals cannot be used

C. Entrainment of solids is higher

A. Cold SBR is superior as compared to hot SBR

C. Polymerisation temperature can modify the properties of SBR

D. Production of cold SBR employs lower pressure as compared to that of hot SBR

A. Two

B. Six

D. Five

B. Coal tar

C. Bitumen

D. Molasses

A. 15000

B. 4000

D. 1000

A. Fussain

B. Durain

D. Clarain

A. Low ash content

B. Low calorific value

C. Non smoking tendency

A. Light paraffinic fuel oils is equal to that of equivalent olefins

B. n-paraffin is lower than that of iso-paraffins of the same compounds

C. Light paraffinic fuel oils is lower than that of equivalent olefins

A. 45

C. 25

D. 10

B. Coke oven gas and converter gas

C. Coke oven gas and L.P.G

D. Blast furnace gas and naphtha vapor

A. CO2, O2 & CO

C. N2, H2 & CO2

D. H2, CmHn & CO2

A. 7500

B. 900

C. 2000

A. Porosity

B. Coke reactivity index (CRI)

D. Both B. and C.

A. Insecticides

B. Perfumes

C. Plastics

A. CO

B. CO2

C. H2O

A. Addition polymers are generally formed by chain growth polymerisation

C. Bakelite is formed by step growth polymerisation

D. Condensation polymers are generally formed by step growth polymerisation