The sequence of absorption in flue gas analysis by Orsat's apparatus is respectively CO₂, CO, O₂ CO₂, O₂, CO CO, O₂, CO₂ O₂, CO₂, CO TRUE ANSWER : ? YOUR ANSWER : ?
Very __________ coals are completely devoid of cokability i.e, it is non coking. Both A & B Neither A nor B Mature Young TRUE ANSWER : ? YOUR ANSWER : ?
Steam is intermittently admitted into the fuel bed during the production of producer gas to Convert CO to CO₂ Minimise the chances of clinker formation Increase the combustion rate Increase the gas production rate TRUE ANSWER : ? YOUR ANSWER : ?
A sooty flame can be made non-luminous by Admitting more air Shutting gas supply Admitting more gas Shutting air supply TRUE ANSWER : ? YOUR ANSWER : ?
The difference between total carbon and fixed carbon of coal will be minimum in case of Lignite Anthracite High temperature coke (V.M < 0.5%) Bituminous coal TRUE ANSWER : ? YOUR ANSWER : ?
Coke oven gas is stripped of its H₂S and mercaptans content by Bubbling it through dilute sulphuric acid Adsorption on bog iron bed Adsorption on silica gel Absorption in wash oil TRUE ANSWER : ? YOUR ANSWER : ?
If CO₂ is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as O₂ CO SO₂ N₂ TRUE ANSWER : ? YOUR ANSWER : ?
In low temperature carbonisation of coal, the Yield of coke oven gas is 290 Nm³ /ton dry coal Temperature maintained is 700°C Yield of tar is about 3% of dry coal Volatile matter in coke is zero TRUE ANSWER : ? YOUR ANSWER : ?
Caking coal is desirable for Coke making All of these Burning on firebars Burning on travelling grate TRUE ANSWER : ? YOUR ANSWER : ?
In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the Ignition temperature of coke produced is less Tar yield is more Aromatic content of tar produced is more Gas yield is less TRUE ANSWER : ? YOUR ANSWER : ?