Air Pollution And Its Control In Automobile — Part 2 MCQs with Explanations

Reduced power is the correct answer to “Which of the following problem is caused by the clogged air cleaner element”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Mixture is rich in fuel is the correct answer to “More CO is generally formed when”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

To reduce NOx is the correct answer to “For what purpose is the Rhodium used”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Using the accelerator pedal position sensor is the correct answer to “The electronic control throttle system operates the throttle valve by”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Both HC and CO is the correct answer to “The PCV system controls which exhaust emissions”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

It removes CO, HC and NOx from the exhaust gases passing through it is the correct answer to “Which one of the following correctly describes the basic function of a TWC”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

HC present in the blow by reused is the correct answer to “What is positive crank case ventilation”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

True is the correct answer to “In a wet type air cleaner filter, the element is made up of a paper that is slightly impregnated with oil.”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Petrol engine is the correct answer to “Which engine uses EVAP canister”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

CO2 is the correct answer to “Which is a green house effect gas”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Reduction of exhaust noise is the correct answer to “The main function of an exhaust muffler is”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Engine breather and air cleaner is the correct answer to “Where the positive crank case ventilation fitted”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Reduce NOx is the correct answer to “What is the purpose of EGR (Exhaust gas recirculation) valve”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Prevents the dust and other foreign matter from entering the engine is the correct answer to “The main purpose of an engine's air cleaner is that it”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

From exhaust system is the correct answer to “Which is the source of pollutant gases with hydro carbon”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

NOx is the correct answer to “What can be reduced by using exhaust gas recirculation (EGR) effectively”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Higher knocking will occur is the correct answer to “What will happen if petrol is used in diesel engine”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Combustion with a near stoichiometric air-fuel ratio is the correct answer to “The primary condition that results in the emission of NOx is large quantities is”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

False is the correct answer to “The flow rate of EGR is not controlled by the Engine management system.”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

H2O + CO2 + Nitrogen is the correct answer to “Which is harmful emission element produced by an internal combustion engine”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Incomplete combustion is the correct answer to “The primary condition that results in the emission of HC in large quantities is”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Exhaust manifold is the correct answer to “The hot air in a carbureted engine's intake air control system receive its heat from the”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Carbon dioxide is the correct answer to “In the Orsat apparatus, KOH solution is used to absorb”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

H2O + CO2 + Nitrogen is the correct answer to “Which is less harmful emission element after convert by catalytic converter”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

NOx is the correct answer to “Which one of the toxic component is reduced by an EGR system”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

False is the correct answer to “Upper level ozone is harmful to lungs and other biological tissue.”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Crank case and exhaust system is the correct answer to “Which is the hydrocarbon emission released directly from engine to the atmosphere”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Decrease is the correct answer to “. . . . . . . . in EGR results in some cycle partial burns and, in the extreme, total misfires.”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Reduces the intake noise is the correct answer to “The function of a resonator is that it”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Particulates is the correct answer to “Which of the following is one of the major exhaust emissions from CI engines compared to SI engines”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

True is the correct answer to “The hydrocarbons appear due to flame quenching near the metallic walls.”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

30% is the correct answer to “The amount of flow in EGR, can be as high as . . . . . . . . of the total intake.”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

From exhaust system is the correct answer to “Which of the hydro carbon emission released after the combustion of the engine”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

1 and 2 is the correct answer to “Oxides of nitrogen in the engines exhaust can be reduced by the following methods: 1. Decrease in compression ratio 2. Exhaust gas recirculation 3. Use of 5% lean mixture 4. Use of oxidation catalysts in exhaust manifold. The correct methods are”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

O2 is the correct answer to “Which one is a non pollution gas”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

True is the correct answer to “The intake air-fuel mixture is used to push exhaust residual out of the open exhaust port called scavenging.”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

All the above is the correct answer to “Oxides of nitrogen can be controlled by”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Tetraethyl lead is the correct answer to “Which of the following is used as antiknock compound in gasoline”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Chemically correct mixture and A/F ratio about 15 is the correct answer to “In spark ignition petrol engines maximum emission of Nox takes place when the air fuel ratio (A/F) is”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.

Filter element is the correct answer to “The component of air filter that prevents the passage of metal particles and sludge is”. This question is standard in competitive examination syllabi for Air Pollution And Its Control In Automobile.