Question:
6. EGR pipe fasteners and clamps ____.
A. are to be used only once and must be replaced if loosened
B. must be coated with nickel anti-seize compound to prevent seizing
C. should be secured with a locking compound to prevent leaks from loose flanges
D. none of the above
7. The EGR Diesel Oxidation Catalyst helps ____.
A. cool the exhaust with injected air
B. keep the EGR coolers and valve clean by burning off sticky carbon particulates
C. reduce emissions by diluting the exhaust with air
D. none of the above
8. The fuel injection system ____.
A. is capable of adapting fuel delivery to each cylinder to adapt for engine wear
B. multiple injections in one injection stroke
C. both A & B
D. none of the above
Answers:
6. A 7. C 8.C
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