In which of the following conditions is EGR NOT commanded?
A) Wide open throttle B) Idle
C) Cold engine D) All of these are correct.
D
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The oral technical presentation in many ways is not similar to a written one. You do not need to be well organized and have an outline of your presentation ready, similar to the format for a written report.
a. True b. False
Flash gas in the liquid line can be identified by:
A) The popping sound the refrigerant makes every time a new flash explodes. B) A significant temperature drop in the liquid line temperature. C) The bright flashes of light that accompany the flash gas. D) A significant temperature increase in the liquid line temperature.
Technician A says dynamic rear proportioning replaces the old mechanical proportioning valves with ABS action to prevent rear wheel lock up during heavy braking. Technician B says an enhanced traction system can control wheel slippage in some cases by simply reducing the output torque of the engine by reducing engine timing, cutting, cylinders, reducing the throttle opening, or reducing fuel delivery. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Surface waviness is the often widely spaced condition of surface texture, caused by several factors. Which of the following is not one of those factors?
A. machine chatter B. warpage C. heat treatment D. work deflection E. none of the above