Question: Bomb calorimeter is used for the determination of calorific value of the __________ fuels. [A]. gaseous [B]. solid [C]. liquid [D]. both (b) and (c) Answer: Option D Explanation: No answer description available for this question.

Question: Degree of carbonisation of coal during coke making can be roughly judged by the __________ of the coke produced. [A]. colour [B]. moisture content [C]. ash content [D]. volatile matter Answer: Option D Explanation: No answer description available for…

Question: Compound coke ovens are those which can be heated by [A]. both steam and electrical power. [B]. lean gas (e.g., B.F. gas). [C]. rich gas (e.g., coke oven gas). [D]. both (b) and (c). Answer: Option D Explanation: No…

Question: Main use of hard coke produced by high temperature carbonisation is in the [A]. iron blast furnace [B]. cupola in foundaries [C]. sinter making [D]. domestic ovens Answer: Option A Explanation: No answer description available for this question.

Question: Coal containing large quantity of __________ are difficult to wash. [A]. ash [B]. inherent mineral matter [C]. free impurities [D]. volatile matter Answer: Option B Explanation: No answer description available for this question.

Question: Insitu theory and drift theory are related to the [A]. origin of petroleum oil. [B]. origin of coal. [C]. coalification. [D]. variation of coal quality with depth. Answer: Option B Explanation: No answer description available for this question.

Question: Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. [A]. 550 [B]. 750 [C]. 950 [D]. 1150 Answer: Option C Explanation: No answer…

Question: While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at [A]. Dankuni (West Bengal) [B]. Dhanbad [C]. Singreni (AP.) [D]. Raniganj Answer: Option A Explanation: No…

Question: During its calorific value determination by bomb calorimeter, coal is combusted by [A]. air [B]. oxygen [C]. oxygen enriched air [D]. none of these Answer: Option B Explanation: No answer description available for this question.

Question: Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. [A]. 500 [B]. 750 [C]. 950 [D]. 1100 Answer: Option B Explanation: No answer description available for…