1) Which one of the following is an undesirable byproduct of combustion in IC engines that is caused due to high temperature conditions? O Unburnt hydrocarbons. O Soot O Carbon monoxide. O Oxides of nitrogen. 2) Which one of the following statements is true about emissions from Sl engines? O A rich fuel-air mixture decreases the tendency for more HC emissions ONOX emissions would be maximum at a slightly rich mixture. O NOx emissions decrease as the fuel-air mixture becomes either too rich or too lean OA lean fuel-air mixture increases the tendency for more CO emissions 3) Which one of the following is correct about HC emission? O t is reflective of complete combustion of fuel. OIt results due to improper mixing of fuel and air. OUnburnt HCs do not contribute to photochemical smog Ot decreases as the fuel-air mixture becomes too lean.

1) Which one of the following is an undesirable byproduct of combustion in IC engines that is caused due to high temperature conditions? O Unburnt hydrocarbons. O Soot O Carbon monoxide. O Oxides of nitrogen. 2) Which one of the following statements is true about emissions from Sl engines? O A rich fuel-air mixture decreases the tendency for more HC emissions ONOX emissions would be maximum at a slightly rich mixture. O NOx emissions decrease as the fuel-air mixture becomes either too rich or too lean OA lean fuel-air mixture increases the tendency for more CO emissions 3) Which one of the following is correct about HC emission? O t is reflective of complete combustion of fuel. OIt results due to improper mixing of fuel and air. OUnburnt HCs do not contribute to photochemical smog Ot decreases as the fuel-air mixture becomes too lean.

Automotive Technology: A Systems Approach (MindTap Course List)

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter30: Electronic Fuel Injection

Section: Chapter Questions

Problem 7ASRQ: While discussing air-fuel ratios: Technician A says that a stoichiometric mixture is theoretically...

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