Two technicians are describing measuring an air filter restriction. Technician A says that you connect a Magnehelic gauge to the clean side of the air filter. Technician B says that you place the engine under load during a road test to operate the engine at maximum boost pressure. Who is right?
A)A only"
B)B only"
C)Both A and B
D)Neither A nor B"

Question

Quizplus · Accepted Answer

Technician A is correct because a Magnehelic gauge is used to measure pressure differences, and connecting it to the clean side of the air filter helps measure restriction. Technician B is also correct because placing the engine under load during a road test ensures the engine operates at maximum boost pressure, which is necessary to accurately measure air filter restriction.

Two Technicians Are Describing Measuring an Air Filter Restriction