A MAF sensor on a General Motors 3800 V-6 is being tested for contamination. Technician A says that the sensor should show over 100 grams per second on a scan tool display when the accelerator is depressed to WOT (wide open throttle) on a running engine. Technician B says that the output frequency should exceed 7000 Hz when the accelerator pedal is depressed to WOT on a running engine. Which
technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
C
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According to ANSI/AHRI Standard 730, for temporary use after a compressor burnout, a suction line drier can be selected for a maximum pressure drop of _____.
a. 2 psi b. 3 psi c. 5 psi d. 8 psi
The charging system of a vehicle is producing 100 amps and 12.4 volts at 1500 RPM with all electrical accessories turned "on." The charging system output specification for this vehicle is 110 amps. Technician A says the alternator needs to be replaced. Technician B says the electrical demand of the vehicle may be exceeding the capacity of the charging system. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
If a microprocessor is used in an AC drive, it is located in which section?
A. converter B. intermediate C. inverter D. control circuit
____________________ usually means a product can no longer perform the duties for which it was purchased due to any number of reasons and thus must be removed from service, whether in a kitchen or a petroleum refinery.
Fill in the blank(s) with the appropriate word(s).