With respect to I.C. engine emissions, consider the following statements:
1. Evaporative emissions have no carbon monoxide and oxides of nitrogen.
2. Blow by emissions are essentially carbon monoxide and suspended particulate matter.
3. Exhaust emissions contain 100% of carbon monoxide, 100% of oxides of nitrogen and around 50 - 55% of hydrocarbons emitted by the engine.
4. There are no suspended particulates in the exhaust.
Of these statements
Option (A)
1 and 4 are correct
Option (B)
1 and 3 are correct
2 and 3 are correct
1, 2, 3 and 4 are correct
Correct Option:
Question Solution:
Blowby emission are essentially carbon monoxide and suspended particulate.