Technician A says that when ambient temperature drops below 35 degrees Fahrenheit (2 degrees Celsius), outdoor J1667 opacity testing on truck diesel engines does not produce meaningful datA.Technician B says that when outdoor temperatures exceed 80 degrees, a J1667 test should not be performed. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is correct because low temperatures can affect the accuracy of opacity readings in diesel engines, making the data less reliable. Technician B's statement about high temperatures is not a standard limitation for J1667 testing.

Technician a Says That When Ambient Temperature Drops Below 35