Two technicians are discussing clogged EGR passages. Technician A says that clogged EGR passages can cause excessive NOx exhaust emission. Technician B says that clogged EGR passages can cause the engine to ping (spark knock or detonation). Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
C
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Live generator parts operating at more than ____ volts to ground shall not be exposed to accidental contact by unqualified persons.
A. 25 B. 50 C. 75 D. 100
The implementation plan must consider and provide for:
What should be done before draining the engine oil of a refrigeration unit?
A. Warm the engine to operating temperature B. Ensure you have a drain pan capable of containing all the engine oil C. Check the engine hour meter to make sure the unit has the required hours D. All of the above should be performed before draining the engine oil
Traction control uses the antilock braking system and other devices to limit ________ of the drive wheel during acceleration
A) Negative slip B) Side slip C) Positive slip D) None of these