Which one of these terms is NOT related to a catalytic converter?

This question was previously asked in
RRB ALP Mechanic Diesel 21 Jan 2019 Official Paper (Shift 1)
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  1. Lambda probe
  2. Palladium coating
  3. Stainless steel housing
  4. Inlet manifold

Answer (Detailed Solution Below)

Option 4 : Inlet manifold
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Detailed Solution

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Explanation:

Catalytic converter:

  • The catalytic converter looks like a muffler.
  • It is located in the exhaust system the head of the muffler.
  • It is enclosed inside a Stainless steel housing.
  • Inside converters are pellets or a honeycomb made of platinum or palladium.
  • platinum or palladium is used as a catalyst (a catalyst is a substance used to speed up a chemical process).
  • A catalyst is chemically oxidized or converted to carbon dioxide and water.
  • The Lambda probe (sensor) is normally used in a petrol engine to decide the oxygen content in the exhaust gas in relation to the working of the catalytic converter.
  • Based on the input from this sensor the ECU do minor corrections to the amount of fuel being metered.
  • This converter works to clean the (exhaust) unburnt hydrocarbons before they fly out the tailpipe.
  • A Catalytic converter is located within the exhaust system and converts harmful emissions such as HC, CO, NOx, produced by an internal combustion engine, to less-harmful elements: H2O (Water), CO2(Carbon Dioxide), and N2 (Nitrogen). 
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