Fuels and Combustion Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher Calorific value Higher C/H ratio Difference in gross & net calorific value Sulphur content Calorific value Higher C/H ratio Difference in gross & net calorific value Sulphur content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal as compared to that of lump coal Can be done with less excess air Provides a lower rate of heat release Develops a non-luminous flame Develops a low temperature flame Can be done with less excess air Provides a lower rate of heat release Develops a non-luminous flame Develops a low temperature flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using Preheated secondary air Very little excess air Low amount/current of combustion air High amount/current of combustion air Preheated secondary air Very little excess air Low amount/current of combustion air High amount/current of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels has the highest net calorific value (kcal/Nm³)? Producer gas Carburetted water gas Natural gas Liquified petroleum gas Producer gas Carburetted water gas Natural gas Liquified petroleum gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr. 2.5 10 20 0.5 2.5 10 20 0.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Dust content in raw blast furnace gas is about __________ gm/Nm³ , hence it is cleaned to the dust level of about < 10 mg /Nm³ before use. 70-100 15-30 43832 150-200 70-100 15-30 43832 150-200 ANSWER DOWNLOAD EXAMIANS APP
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