While having a discussion, Technician A says that driving the car on the road or on a dyno is the best way to heat up the cat. Technician B says that it is best to run the engine in a stall. Who is correct?
A) A only
B) B only
C) Neither A nor B
D) Both A and B

Question

Quizplus · Accepted Answer

Driving the car on the road or on a dyno simulates real driving conditions, which is the most effective way to heat up the catalytic converter to its operating temperature. Running the engine in a stall does not provide the same level of exhaust flow and heat generation.

While Having a Discussion, Technician a Says That Driving the Car