Question

Traps are filter-like system often made of ceramic in the form of a monolith or mat, or metal wire mesh.

(a) True

(b) False

I got this question in an interview.

Enquiry is from C.I. Engines in chapter Engine Emissions and their Control of IC Engine

Answer 1

The correct answer is:

(a) True

Traps, such as Diesel Particulate Filters (DPF), are indeed filter-like systems often made of ceramic in the form of a monolith or mat, or metal wire mesh. These filters are used to capture particulate matter (soot) from the exhaust gases of diesel engines, helping to reduce emissions. The design of the trap allows it to effectively filter out the particulate matter while allowing the exhaust gases to pass through.