- Less volatile matter
- More carbon
- Greater percentage of ash
- All of the above
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The hard coke is obtained when carbonization of coal is carried out at?
Answer: Option 4 Let'
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Directions : Following question consists of a statement followed by three arguments I, II and III . You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should coal engines be replaced by electric engines in trains Arguments : I. Yes. Coal engines cause a lot of pollution. II. Yes. Electric engines are good on performance, easy to operate and low on maintenance. III. No. India does not produce enough electricity to fulfil its domestic needs also.?
Answer: Option 2 Clearly, electric engines shall be smoke-free and thus not cause pollution as the coal engines. They also run at higher speeds and perform better. Thus, both I...
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Directions : Following question consists of a statement followed by three arguments I, II and III . You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should India immediately stop digging coal from its mines Arguments : I. Yes. The present stock of coal will not last long if we continue mining at the present rate. II. No. We do not have alternate energy source of sufficient quantity. III. No. This will put millions of people at a disadvantage and their lives will get adversely affected and also the industry.?
Answer: Option 2 Though the reserves of coal are limited, yet stopping its use till alternate sources of energy have been discovered, is no solution to conserve it. So, I...
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Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is?
Answer: Option 1 Let'
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Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant?
Answer: Option 3 Let'
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Sometimes water is sprayed during coal charging in the coke oven, which helps in?
Answer: Option 4 Let'
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Which of the following constituents of coal is the most important in the production of coke?
Answer: Option 4 Let'
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Which of the following are true with regard to coal in India I. Coal is found in sedimentary rocks II. The best quality of coal is lignite III. The largest and oldest coalfied in india is known as the ruhr of india IV. The Damodar river valley is popularly known as the 'Ruhr of India'?
Answer: Option 3 The following that are true with regard to coal in India are Coal is found in sedimentary rocks, The best quality of coal is lignite and The...
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Which of the following are true with regard to coal in India I. Coal is found in sedimentary rocks II. The best quality of coal is lignite III. The largest and oldest coalfield in India is known as the 'Ruhr of India'. IV. The Damodar river valley is popularly known as the Ruhr of India.?
Answer: Option 3 The following that are true with regard to coal in India are Coal is found in sedimentary rocks, The largest and oldest coalfield in India is known...
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Due to enormous profits involved in smuggling, hundreds of persons have been attracted towards this anti-national activity. Some of them became millionaires overnight. India has a vast coastline both on the Eastern and Western Coast. It has been a heaven for smugglers who have been carrying on their activities with great impunity. There is no doubt, that from time to time certain seizures were made by the enforcement authorities, during raids and ambush but even allowing these losses the smugglers made huge profits. The passage best supports the statement that:?
Answer: Option 4 smuggling is fast increasing in our country owing to the quick profit it entails.
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