Question: Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher [A]. calorific value [B]. higher C/H ratio [C]. sulphur content [D]. difference in gross & net calorific value Answer: Option B Explanation: No answer description available…

Question: Coal tar fuel – 200 (CTF 200) is a mixture of [A]. pitch and creosote oil. [B]. light oil and pitch. [C]. anthracene and crecosote oil. [D]. solar oil and pitch. Answer: Option A Explanation: No answer description available…

Question: Naphthalene recovered from coke oven gas is used [A]. as moisture proof coating on fibres. [B]. as moth balls (insecticides). [C]. as a fuel in furnaces. [D]. for making electrodes. Answer: Option B Explanation: No answer description available for…

Question: In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less. [A]. difference in gross & net calorific value of the coke oven gas [B]. free carbon content in tar [C]. yield percentage of…

Question: Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than __________ °C is liable to form clinker. [A]. 1100 [B]. 1250 [C]. 1350 [D]. 1400 Answer: Option A Explanation: No answer…

Question: Coals used for the generation of producer gas should have [A]. high caking index. [B]. low fusion point of ash. [C]. high volatile matter content. [D]. very low ash content (8-10%). Answer: Option C Explanation: No answer description available…

Question: Hard coke is manufactured from [A]. lignite [B]. bituminous coal [C]. semi-anthracite [D]. anthracite Answer: Option B Explanation: No answer description available for this question.

Question: Main constituent of the gas produced from a gobar gas plant is [A]. CO2 [B]. CH4 [C]. H2 [D]. CO Answer: Option B Explanation: No answer description available for this question.

Question: Gobar gas is produced by the __________ of cown dung. [A]. fermentation [B]. oxidation [C]. hydrogenation [D]. none of these Answer: Option A Explanation: No answer description available for this question.

Question: Calorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter. [A]. bomb [B]. Boy’s [C]. Junkar’s [D]. none of these Answer: Option A Explanation: No answer description available for this question.