Research octane number refers to the (A) Low octane number motor fuels (B) High octane number motor fuels (C) High octane number aviation fuels (D) Unleaded motor fuels

Research octane number refers to the
(A) Low octane number motor fuels
(B) High octane number motor fuels
(C) High octane number aviation fuels
(D) Unleaded motor fuels
by

1 Answer

Answer :

(D) Unleaded motor fuels
by

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Octane number (unleaded) of reformed gasoline may be upto (A) 60 (B) 70 (C) 80 (D) 90

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Last Answer : (D) 90

Which of the following gasoline (unleaded) has the least octane number? (A) Catalytically cracked gasoline (B) Straight run gasoline (C) Catalytically reformed gasoline (D) Polymer gasoline

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The octane number of aviation gasoline may be (A) 79 (B) 87 (C) 97 (D) > 100

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Fuels that may classified conveniently in solid, liquid and gaseous.  a. Unleaded fuel  b. Diesel fuel  c. Fossil fuel  d. All of the above

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Which among the following is used as a catalyst in the production of high octane fuels? (1) HNO3 (2) H2SO4 (3) HCl (4) HF

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Reference fuels for knock rating of SI engine fuels would include (a) Iso octane alpha methyl naphthalene (b) Normal octance and aniline (c) Isooctance and n octane (d) N heptane and iso octane

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The economical diesel fuels have got octane rating varying from a) 30 to 50 b) 30 to 60 c) 20 to 30 d) 25 to 30

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Choose the correct statement regarding thermal cracking. (A) Moderate changes in operating temperature does not change the depth of cracking (B) Increased residence time results in the decreased severity of cracking (C) At low pressure, the yield of lighter hydrocarbons are more (D) Greater depth of cracking gives lower octane number gasoline

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Description : What is super unleaded petrol?

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What is unleaded petrol?

Description : What is unleaded petrol?

Last Answer : Unleaded petrol is a type of petrol that does not contain lead additives, which can harm the environment and human health.

Can unleaded petrol be used in engines that were designed for leaded petrol?

Description : Can unleaded petrol be used in engines that were designed for leaded petrol?

Last Answer : Some older engines may require modifications in order to run on unleaded petrol, as the lack of lead can cause increased wear on certain engine components.

What is the difference between regular and unleaded petrol?

Description : What is the difference between regular and unleaded petrol?

Last Answer : Regular petrol contains some amount of lead, while unleaded petrol does not.

What is the difference between leaded and unleaded petrol?

Description : What is the difference between leaded and unleaded petrol?

Last Answer : Leaded petrol contains lead additives that can harm the environment and human health, and has been phased out in most countries. Unleaded petrol does not contain lead additives.

What is unleaded petrol?

Description : What is unleaded petrol?

Last Answer : Unleaded petrol is petrol that doesn't contain tetraethyl lead or other lead-based additives.

Why is gasoline still called "unleaded?"?

Description : Why is gasoline still called "unleaded?"?

Last Answer : Nostalgia? Takes me back to the mid 70s. We had a Ford in he White House, and still no gas.

Is Shell unleaded gas ethanol free?

Description : Is Shell unleaded gas ethanol free?

Last Answer : Probably depends where you are. In Seattle all gas I’ve paid attention to has ethanol. Edit: Time of year might also be a factor. Not sure of that.

What does it cost a refinery to produce just one gallon of regular unleaded gasoline?

Description : What does it cost a refinery to produce just one gallon of regular unleaded gasoline?

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How long is unleaded gasoline good for?

Description : How long is unleaded gasoline good for?

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Why is diesel fuel .20 cents lower per gallon than regular unleaded when it was .50 cents higher per gallon a year ago?

Description : Why is diesel fuel .20 cents lower per gallon than regular unleaded when it was .50 cents higher per gallon a year ago?

Last Answer : pure crackpot speculation and too many hours without quality caffiend… I say it’s because the American govt. has a new “eco friendly” president/administration and diesel is less nasty (visible fumes aside) than unleaded gasoline.

How long does unleaded petrol keep for?

Description : How long does unleaded petrol keep for?

Last Answer : Deterioration of petrol is mostly caused by oxidation. The rate of oxidation will depend on temperature (faster at higher temperatures). Storage in the boot of the car over the summer months would almost ... will greatly slow the deterioration. It can last up to a couple of years with a stabilizer.

85% ethanol vs regular unleaded?

Description : 85% ethanol vs regular unleaded?

Last Answer : Not sure of all the specifics but my gas mileage goes to hell when I use 85% ethanol.

Antiknocking agent of unleaded petrol is

Description : Antiknocking agent of unleaded petrol is

Last Answer : Antiknocking agent of unleaded petrol is A. Dibromethane B. Methyl-ethyl ether C. Propane D. Methyl tert. Butyl ether.

Antiknocking agent of unleaded petrol is

Description : Antiknocking agent of unleaded petrol is

Last Answer : Antiknocking agent of unleaded petrol is A. Dibromethane B. Methyl-ethyl ether C. Propane D. Methyl tert. Butyl ether.

Write the meaning of a) unleaded petrol b) antiknock value of petrol c) CNG

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Last Answer : a) Unleaded petrol means petrol without the lead added to it b) Antiknock value of petrol is c) CNG stands for Compressed Natural Gas. It is a clean fuel. It is environment friendly.

The average boiling point of aviation turbine fuel is closest to that of (A) Lubricating oils (B) LPG (C) Diesel (D) Kerosene

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Last Answer : (D) Kerosene

Stack heat losses can be minimised by (A) Controlling the excess air (B) Oxygen enrichment of combustion air (C) Using low c.v. fuels (D) Maintaining proper draft in the furnace

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Last Answer : (A) Controlling the excess air

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

Description : 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

Last Answer : (C) Those fuels which are found in the crust of earth

Velocity of liquid hydrocarbon fuels in a pipeline cannot be measured by magnetic flow-meters, because their __________ is very low/small. (A) Thermal conductivity (B) Electrical conductivity (C) Specific gravity

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Last Answer : (C) Specific gravity

Pick out the wrong statement. (A) Alkylation produces a larger iso-paraffin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin (B) Catalytic alkylation processes use HF, AlCl3 & H2SO4 as Catalysts (C) All the alkylation processes use very high temperature (> 1000°C) (D) Gasoline having an octane number of 90 can be produced by alkylation process

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Last Answer : (C) All the alkylation processes use very high temperature (> 1000°C)

Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic (A) Cracking (B) Polymerisation (C) Reforming (D) Isomerisation

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Last Answer : (C) Reforming

Higher pressure in the reforming reactor (A) Increases coke formation (B) Increases the rate of reaction(C) Produces high octane number gasoline(D) None of these

Description : Higher pressure in the reforming reactor (A) Increases coke formation (B) Increases the rate of reaction (C) Produces high octane number gasoline (D) None of these

Last Answer : (D) None of these

What is low octane petrol?

Description : What is low octane petrol?

Last Answer : Low octane petrol has a lower octane rating than regular petrol, and may not be suitable for use in high-performance or high-compression engines.

Visbreaking process is used mainly for making (A) High cetane diesel (B) High octane gasoline (C) Fuel oil (D) Smoke free kerosene

Description : Visbreaking process is used mainly for making (A) High cetane diesel (B) High octane gasoline (C) Fuel oil (D) Smoke free kerosene

Last Answer : (C) Fuel oil

Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with (A) Methyl alcohol (B) Ethyl alcohol (C) Methane (D) Ethane

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Last Answer : (A) Methyl alcohol

Can petrol be used as a replacement for aviation fuel?

Description : Can petrol be used as a replacement for aviation fuel?

Last Answer : Petrol should not be used as a replacement for aviation fuel, as it can cause damage to airplane engines.

What is the difference between petrol and aviation fuel?

Description : What is the difference between petrol and aviation fuel?

Last Answer : Petrol is a lighter fuel used primarily in cars and other vehicles, while aviation fuel is a heavier fuel used in airplanes.

You’re boarded on a plane, then you’re asked to volunteer to skip your current flight to make room for more aviation employees. What do you do?

Description : You’re boarded on a plane, then you’re asked to volunteer to skip your current flight to make room for more aviation employees. What do you do?

Last Answer : I mean, if they're willing to put me up in a hotel and spring for dinner then sure why not? If not, they can fuck off.