Fuels and Combustion Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. 1150 550 950 750 1150 550 950 750 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Increases the loss of fine coal dust from the ovens when charging Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Reduces the coking time Increases the loss of fine coal dust from the ovens when charging Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Reduces the coking time ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard coke is manufactured from Lignite Anthracite Bituminous coal Semi-anthracite Lignite Anthracite Bituminous coal Semi-anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal tar fuel - 200 (CTF 200) is a mixture of Solar oil and pitch Pitch and creosote oil Anthracene and crecosote oil Light oil and pitch Solar oil and pitch Pitch and creosote oil Anthracene and crecosote oil Light oil and pitch ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr. 20 2.5 10 0.5 20 2.5 10 0.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During its calorific value determination by bomb calorimeter, coal is combusted by Oxygen enriched air Oxygen None of these Air Oxygen enriched air Oxygen None of these Air ANSWER DOWNLOAD EXAMIANS APP
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