Two technicians are discussing the testing of a catalytic ...

[tiffannnnyyyyyy]

Two technicians are discussing the testing of a catalytic converter. Technician A says that a vacuum gauge can be used and observed to see if the vacuum drops with the engine at 2500 RPM for 30 seconds. Technician B says that a pressure gauge can be used to check for backpressure. Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B

[leeeep]

Both technicians A and B

[tiffannnnyyyyyy]

Gracias!

[kalskdjl1212]

Thanks for the timely response, appreciate it