Fuels and Combustion Abel apparatus is used for those oils, whose flash points are___°F. >120 300-600 >280 >120 300-600 >280 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Spontaneous combustion of coal on storage results due to All of these Low temperature oxidation Inadequate ventilation Storage in large heaps with small surface to volume ratio All of these Low temperature oxidation Inadequate ventilation Storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Reduces the coking time Increases the loss of fine coal dust from the ovens when charging None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Reduces the coking time Increases the loss of fine coal dust from the ovens when charging None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen. Same as Higher than Lower than Not related to Same as Higher than Lower than Not related to ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzene is used For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a perfume As a motor fuel As an explosive For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a perfume As a motor fuel As an explosive ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur All of these Thick fire bed and preheated primary air Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur All of these Thick fire bed and preheated primary air ANSWER DOWNLOAD EXAMIANS APP
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