An EGR valve that is partially stuck open would most likely cause what condition?
A) Excessive NOx exhaust emissions
B) Ping (spark knock or detonation
C) Missing at highway speed
D) Rough idle/stalling
Answer: D) Rough idle/stalling
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When three views are used to describe an object, the ____ view is placed directly above and in line with the front view.
A. top B. right C. bottom D. left
A pipefitter apprentice training program typically requires _____ hours of OJT.
a. 432 b. 576 c. 4,000 d. 8,000
Un motor _____ proporciona velocidad constante desde condiciones sin carga a plena carga.
a. de CC en serie b. de inducción de jaula de ardilla c. sincrónico d. de CC en derivación
What are some differences between piping practices for air conditioning systems and piping practices for commercial refrigeration systems?
What will be an ideal response?