Question

Diesel exhaust fluid is injected A. after the oxidation catalyst. B. at the end of the tail pipe. C. into the exhaust manifold. D. solely in front of the muffler

Answer 1

Answer:

It not C. i took the test and it was incorrect on PF. I would go with B. Because., the exhaust is split into two outlets and has slits to help draaw outside air in as the exhaust leaves the tailpipe. The end result is cooler exhaust gases exiting the tailpipe.

Explanation:

I'll update if incorrect.

Answer 2

Answer - C

Diesel exhaust fluid (DEF; an aqueous urea solution) is injected into the exhaust manifold (upstream of a catalyst) at a precise dosing rate. In the exhaust pipeline, the aqueous urea vaporizes and decomposes to form ammonia (which is the desired product) and carbon dioxide.