Fossil fuels mean (A) Solid fuels (B) Liquid fuels (C) Those fuels which are found in the crust of earth (D) Premature fuels with low calorific value

Fossil fuels mean
(A) Solid fuels
(B) Liquid fuels
(C) Those fuels which are found in the crust of earth
(D) Premature fuels with low calorific value
by

1 Answer

Answer :

(C) Those fuels which are found in the crust of earth
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Related questions

Which of the following statement is incorrect?  A. The liquid fuels consist of hydrocarbons.  B. The liquid fuels have higher calorific value than solid fuels.  C. The solid fuels have higher calorific value than liquid fuels.  D. A good fuel should have low ignition point.

Description : Which of the following statement is incorrect?  A. The liquid fuels consist of hydrocarbons.  B. The liquid fuels have higher calorific value than solid fuels.  C. The solid fuels have higher calorific value than liquid fuels.  D. A good fuel should have low ignition point.

Last Answer : Answer: C

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Liquid fuels have higher calorific value than solid fuels.  A. Yes  B. No

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Calorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter. (A) Bomb (B) Boy's (C) Junkers (D) None of these

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Description : Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby ... B) Irritation in eyes (C) Respiratory trouble (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

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Description : Pick out the wrong statement. (A) High concentration of oxygen in flue gas means high stack loss (B) Gaseous fuels require the least % excess air for complete combustion (C) The ratio of fixed carbon to ... coal is called its 'fuel ratio' (D) Calorific value of natural gas is more than that of LPG

Last Answer : (D) Calorific value of natural gas is more than that of LPG

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Description : Which of the following fuels has the highest calorific value per unit mass (kcal/kg)? (A) Coal (B) Kerosene (C) Natural gas (D) Furnace oil

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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

Description : 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

Last Answer : (B) Higher C/H ratio

Out of the following fuels, the difference between the net and gross calorific value is maximum in case of (A) Pitch (B) Fuel oil (C) Blast furnace gas (D) Bituminous coal

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Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3 )? (A) Producer gas (B) Carburetted water gas (C) Natural gas (D) Liquefied petroleum gas

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The optimum percentage of excess air for combustion depends upon the__________ of the fuel.(A) Type (solid, liquid or gaseous)(B) Calorific value(C) Sulphur content(D) Ignition temperature

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Among the fuels given below, the one with highest calorific value is – (1) Coke (2) Coal (3) Wood (4) Natural gas

Description : Among the fuels given below, the one with highest calorific value is – (1) Coke (2) Coal (3) Wood (4) Natural gas

Last Answer : (4) Natural gas Explanation: The calorific values of different fuels (in Kcal/kg) in dry state are: Wood: 3500; Coal: 4000-7000; Coke: 6500; and Natural Gas: 8600 Kcal/kg.

Compare the following fuels on the basis of calorific value and knocking. LPG, CNG and bio-diesel

Description : Compare the following fuels on the basis of calorific value and knocking. LPG, CNG and bio-diesel 

Last Answer : Parameter LPG CNG Bio-diesel Calorific value 46.4MJ/Kg LPG has consistent & higher calorific value.  52.34 MJ/Kg Which is higher than LPG. 37.27 MJ/Kg this ... 65 which is higher than petro-diesel. So intensity of knocking is less in biodiesel compared to petro diesel.

Among the fuels given below, the one with highest calorific value is (1) Coke (2) Coal (3) Wood (4) Natural gas

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Last Answer : ANSWER: W -- STEAM TEMPERATURE AT THE STEAM TURBINE INLET 

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Last Answer : (A) Type of fuels viz. solid, liquid or gaseous

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Last Answer : (B) Gaseous fuels

A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the (A) Presence of large quantity of hydrogen in the fuel (B) Low calorific value of the fuel (C) High sulphur content in the fuel (D) Lack of thorough mixing of fuel with air

Description : A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the (A) Presence of large ... fuel (C) High sulphur content in the fuel (D) Lack of thorough mixing of fuel with air

Last Answer : (D) Lack of thorough mixing of fuel with air

Liquid fuels have lower efficiency than solid fuels.  A. True  B. False

Description : Liquid fuels have lower efficiency than solid fuels.  A. True  B. False

Last Answer : Answer: B

________ fuels produce least amount of harmful gases and do not leave behind solid residue on combustion. a) solid b)gaseous c)liquid d )semi-solid

Description : ________ fuels produce least amount of harmful gases and do not leave behind solid residue on combustion. a) solid b)gaseous c)liquid d )semi-solid

Last Answer : b)gaseous

Compare liquid fuels with solid fuels.

Description : Compare liquid fuels with solid fuels.

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Give examples of different types of fuels. Also state any two advantages of liquid fuels over solid fuels.

Description : Give examples of different types of fuels. Also state any two advantages of liquid fuels over solid fuels.

Last Answer : Examples of different types of fuels:- 1. Indian Coal : It contain 30 to 40 % ash but sulphur content is less than 1%.. 2. Imported coal: It contents low ash about 10% but sulphur ... can be controlled to match the load requirements. 13. Rapid and efficient starting of the boilers from cold.

How the analyses and calorific values of fuels can be reported ?

Description : How the analyses and calorific values of fuels can be reported ?

Last Answer : It may be reported as (a) as received or fired (wet) basis (b ) dry or moisture free basis (c) combustible or ash and moisture free basis

Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C. (A) 400-500 (B) 900-1000 (C) 1400-1500 (D) 1700-1800

Description : Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are ... __________ °C. (A) 400-500 (B) 900-1000 (C) 1400-1500 (D) 1700-1800

Last Answer : (B) 900-1000

If other fuels such as fossil fuels, etc. had not been discovered, would whales of today be raised in whale hatcheries for their whale oil, or would they be all but extinct do to the lust for their oil?

Description : If other fuels such as fossil fuels, etc. had not been discovered, would whales of today be raised in whale hatcheries for their whale oil, or would they be all but extinct do to the lust for their oil?

Last Answer : answer:A whale hatchery wouldn’t be too practical. They’d all be extinct now.

Can you guys help me find a valid link that can tell us about how long we have until fossil fuels run out?

Description : Can you guys help me find a valid link that can tell us about how long we have until fossil fuels run out?

Last Answer : I think fossil fuel energy models will go the way of the dinosaur far faster than the supply of such does (did).

If there had been no fossil fuels would we be here?

Description : If there had been no fossil fuels would we be here?

Last Answer : Yes, mankind would certainly be here. No, we wouldn’t be nearing wiping ourselves out. But there were humans here for a very long time before they found and exploited fossil fuels. So yes, we would exist. Just not in this way in in these numbers.

What are 3 factors needed to produce fossil fuels from organic residue?

Description : What are 3 factors needed to produce fossil fuels from organic residue?

Last Answer : I have some guesses but it’s tricky because we’re not supposed to answer homework questions directly here on Fluther. Here’s a hint as to one of my ideas: fossil fuels are considered non-renewable because….? If you still don’t get it I can elaborate.

If fossil fuels come from fossils, then should some belong in a museum or science lab?

Description : If fossil fuels come from fossils, then should some belong in a museum or science lab?

Last Answer : answer:Fossil Fuels come from things that died during the age of fossil formation, but were unfortunate enough to fall into a place where the surrounding conditions turned them into coal or aiol, ... read about them being used in chemicals, agriculture (fertilizers) paint, medicine, and much more.

It took nature about 1 million years to create the amount of fossil fuels today's world consumes every year. How do you feel about that?

Description : It took nature about 1 million years to create the amount of fossil fuels today's world consumes every year. How do you feel about that?

Last Answer : I’ll be dead before we run out so I’m fine with it…

Name any two fossil fuels. -Biology

Description : Name any two fossil fuels. -Biology

Last Answer : A good fuel is the one which has high calorific value, is non-polluting, is easy to transport and easily available, has moderate ignition temperature.

fossil fuels are easily replaced this statement is true because?

Description : fossil fuels are easily replaced this statement is true because?

Last Answer : 1

How many tons of carbon dioxide are produced each year by burning fossil fuels ?

Description : How many tons of carbon dioxide are produced each year by burning fossil fuels ?

Last Answer : 21.3 billion tons of carbon dioxide is produced annually by burning fossil fuels

What are the other causes of global warming besides the burning of fossil fuels?

Description : What are the other causes of global warming besides the burning of fossil fuels?

Last Answer : First you need to establish that there actually is some such thing as "global warming". The globe has always been warming and cooling, and really nobody has any idea what causes it. For instance ... whatever you mean by that, is caused by anything humans are doing is NOT supported by observations.

Burning of fossil fuels is the main source of which of the following pollutants?

Description : Burning of fossil fuels is the main source of which of the following pollutants?

Last Answer : Burning of fossil fuels is the main source of which of the following pollutants? A. Nitrogen oxide B. nitric acid C. nitrous oxide D. sulphur dioxide

Which one of the following is being tried in India as a biofuel substitute for fossil fuels?

Description : Which one of the following is being tried in India as a biofuel substitute for fossil fuels?

Last Answer : Which one of the following is being tried in India as a biofuel substitute for fossil fuels? A. Musa B. Aegilops C. Jatropa D. Azadirachta

Minerals, metals, and fossil fuels are which type of resources of energy?

Description : Minerals, metals, and fossil fuels are which type of resources of energy?

Last Answer : Minerals, metals, and fossil fuels are which type of resources of energy? A. Renewable B. Non-renewable C. Biodegradable D. Degradable

Why are fossil fuels often described as a non renewable?

Description : Why are fossil fuels often described as a non renewable?

Last Answer : Need answer

What are the non renewable energy resources are fossil fuels?

Description : What are the non renewable energy resources are fossil fuels?

Last Answer : Crude oil, natural gas and coal are three non-renewable fossil fuel energy resources. Once used they can not be replaced.

How Do also fossil fuels differ from fossils?

Description : How Do also fossil fuels differ from fossils?

Last Answer : Feel Free to Answer

What product is released into Earth's atmosphere through the combustion of fossil fuels?

Description : What product is released into Earth's atmosphere through the combustion of fossil fuels?

Last Answer : Carbon dioxide, carbon monoxide and water vapor.

Why scientist are looking for alternatives fossil fuels?

Description : Why scientist are looking for alternatives fossil fuels?

Last Answer : B/c burning fossil fuels releas a lot of carbon monoxides andpollutants into the atmosphere, which many suspect may interferewith our climate.On top of that, fossil fuels will one day run out. It'd be quitehandy to have made the switch to something else before thathappens.