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101.	Most available form of solid fuel is _________(a) coal(b) wood(c) petrol(d) ligniteThis question was posed to me in a national level competition.This interesting question is from Solid Fuels topic in chapter Fuel Technologies of Applied Chemistry
Answer» The correct OPTION is (b) wood Easy explanation: The most available FORM of solid fuel is wood. Wood is OBTAINED from the TREES and when trees die and decomposed for years through is called COAL.

102.	What are the main applications of lignite?(a) domestic fuel(b) railway engines(c) used for steam generation in thermal power plant(d) in vehiclesI have been asked this question in unit test.This interesting question is from Solid Fuels in portion Fuel Technologies of Applied Chemistry
Answer» Right answer is (c) used for STEAM generation in thermal power plant To explain I would say: In thermal power PLANTS steam is produced using lignite. It is also used to produce the producer gas. The calorific VALUE of lignite is 6500-7100.

103.	How much percentage of petrol is produced by the synthesis of coal?(a) 40%(b) 50%(c) 80%(d) 30%I have been asked this question by my college professor while I was bunking the class.My question is based upon Mining of Petroleum topic in chapter Fuel Technologies of Applied Chemistry
Answer» Right option is (d) 30% BEST explanation: 30% of PETROL is produced from the synthesis of coal. Coal is mainly UTILIZED in PRODUCING electricity and petrol.50% of petrol is produced form the process called CRACKING.

104.	Which of the following order of petrol knocking is true?(a) aromatics > branched paraffins > olefins > cyclo paraffins > aromatics(b) straight chain paraffins > olefins > branched paraffins > cyclo paraffins > straight chain paraffins(c) straight chain paraffins > branched paraffins > olefins > cyclo paraffins > aromatics(d) straight chain paraffins > branched paraffins > olefins > aromatics > cyclo paraffinsThe question was asked in exam.I'm obligated to ask this question of Cracking and Knocking of Petroleum topic in chapter Fuel Technologies of Applied Chemistry
Answer» Correct option is (C) straight CHAIN paraffins > branched paraffins > olefins > cyclo paraffins > aromatics For explanation I would SAY: The order of petrol knocking is GIVEN by straight chain paraffins > branched paraffins > olefins>cyclo paraffins > aromatics. As we know that aromatics are the best anti KNOCK agents so, the petrol knock for them is very low.

105.	The scales formed during the removal of harmful impurities can be removed by __________(a) electrolysis(b) electroplating(c) electrotyping(d) dehydrationThis question was posed to me in an online interview.The question is from Mining of Petroleum in division Fuel Technologies of Applied Chemistry
Answer» RIGHT option is (d) DEHYDRATION Explanation: The CORROSION is will be there if there is presence of magnesium chloride or sodium chloride salts in crude oil and forms scales. These scales can be removed by dehydration process.

106.	What is the ignition temperature of a good fuel?(a) High(b) Low(c) Moderate(d) 100^0CThe question was posed to me in final exam.My question is from Characteristics of Good Fuel and its Advantages in portion Fuel Technologies of Applied Chemistry
Answer» Correct option is (c) Moderate Easy explanation: The ignition temperature of a GOOD fuel must be moderate because it is really hard to PRODUCE more heat and It requires large amount energy to produce high temperature and to achieve too low TEMPERATURES is also a DIFFICULT task. Moderate temperature can be PRODUCED easily.

107.	The products of combustion of a good fuel _________(a) CO2(b) CO(c) Must not be harmful(d) Must be harmfulThe question was asked during an interview.This question is from Characteristics of Good Fuel and its Advantages topic in chapter Fuel Technologies of Applied Chemistry
Answer» Correct ANSWER is (C) MUST not be harmful For explanation: The good FUEL must not produce harmful products that affect the SURROUNDINGS and nature. Both CO and CO2 are harmful gases.

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