Which of the following is an Antiknocking agent used in SI engine?

The first option is T.E.L (TetraEthyl Lead) which is called an organic lead. It is used as an anti-knock agent in gasoline and jet fuels. Tetraethyl lead is absorbed rapidly by skin, the lungs and the gastrointestinal tract.

What are the best anti knocking reagents of petrol?

4. What are the best anti knocking reagents of petrol? Explanation: The straight chain compounds cause maximum petrol knock and aromatics are called the best anti knock agents of petrol.

What does the term Antiknock value mean?

Fuels are compared with a reference fuel under like operating-conditions, the antiknock value being expressed as the percentage of increase in maximum permissible horsepower. Data are presented with regard to a detonation bomb being developed for the Bureau of Aeronautics.

What is knocking substance?

knocking, in an internal-combustion engine, sharp sounds caused by premature combustion of part of the compressed air-fuel mixture in the cylinder. In a properly functioning engine, the charge burns with the flame front progressing smoothly from the point of ignition across the combustion chamber.

Which of the following is used as an Antiknocking material a glyoxal C Tel B Freon D Ethyl alcohol?

Explanation: Tetraethyl lead (C2H5)4 Pb, is used as an antiknocking agent in gasoline used for running automobiles.

Which substance is used to decrease knocking in diesel?

Explanation: The knocking in diesel fuel can be reduced by adding substances like ethyl nitrite, ethyl nitrate, isoamyl nitrate etc. This process also increases the cetane number of diesel fuel.

What is added to petrol to prevent knocking?

-Tetraethyl lead provides octane to gasoline, thereby preventing engine knock. There are other octane providers, such as benzene and ethanol, but due to low production cost, lead is more preferred. It is added to petrol to make it burn smoothly in motor vehicles. Therefore, lead compound is added to petrol.

What are combustion deposits?

The methodology developed in this thesis shows promise for determining deposit precursor identities and formation mechanisms for important fuel components, and for clarifying the role of gas-phase processes in the formation of combustion chamber deposits.

What happens when you mix alcohol and gasoline?

Mixing alcohol with gasoline produces gasohol. Advantages of fuel blends are that alcohol tends to increase the octane rating and reduce carbon monoxide (CO) and other tailpipe emissions from the engine. The octane number of a fuel indicates its resistance to knock (abnormal combustion in the cylinder).