Question

in case of a leak in the evap system, ______ can be released into the atmosphere.

a. oxides of nitrogen
b. exhaust gases
c. carbon monoxide
d. hydrocarbons

Explanation:

The EVAP (Evaporative Emission Control) system is designed to prevent fuel vapors (hydrocarbons) from escaping into the atmosphere. If there is a leak in the EVAP system, the fuel vapors (hydrocarbons) that it is supposed to contain will be released. Oxides of nitrogen, exhaust gases, and carbon monoxide are not primarily associated with the EVAP system's containment function.

Answer:

d. Hydrocarbons