Turbo damage by a foreign object is being discussed. Technician A says to look at the valves to determine from which direction the damage came. Technician B says compressor wheel damage results from objects entering the intake stream. Who is correct?
A. Technician A
B. Technician B
C. Both technicians
D. Neither technician
Answer: B
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If you are troubleshooting a reach-in cooler because its compressor is not running, you should ________
A) test the door heaters because an open in a heater will keep voltage from reaching the compressor B) test the door switches to ensure that voltage is reaching the compressor C) test the supply voltage, compressor relay, and thermostat to see that voltage is passing through these components and reaching the compressor
The composite vehicle fails a loaded mode I/M test for excessive hydrocarbons. Which of the following is the root cause of the problem?
A. Shorted CMP signal wire to the ECM B. Open CKP sensor C. Poor connection at ECM terminal 19 D. Blown fuse no. 4
Technician A says that a transfer case may use GL-4 gear lube such as SAE 80W-90. Technician B says that a transfer case may use automatic transmission fluid (ATF) such as Dexron III. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
When installing units requiring three-phase power, the voltages between any two power leads must be:
A) Within 3 percent of each other. B) Within 15 percent of each other. C) Within 10 percent of each other. D) Exactly the same.