Two technicians are discussing clogged EGR passages. Technician A says 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
D) Neither technician
C
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Using sketches and notes, illustrate the two most commonly used reinforced-concrete floor systems.
What will be an ideal response?
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Use the prime factors to determine the lowest common denominator for 
.
Fill in the blank(s) with the appropriate word(s).
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Remote control is accomplished by running ____ control wire(s) between the valve and a control device.
a. a single b. two pairs of c. a thin d. a single pair of
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Which type of vent material is not of double-wall construction?
a. PVC b. Type B-W c. Type L d. Type B
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