Which federal agency is responsible for certifying any new highway truck diesel engine before it can be operated on our highways?
A. Environmental Protection Agency (EPA)
B. Society of Automotive Engineers (SAE)
C. American Trucking Association (ATA)
D. California Air Resources Board (CARB)
Answer: A
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Technician A says as engine speed slows, the timing should be retarded or have less advance. Technician B says typically, the more load on an engine, the less spark advance is needed. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
What is the difference between the terms felt and ply? List various asphalt-treated fiberglass roofing felts and briefly explain the differences between them.
What will be an ideal response?
?How much of the plate surface next to the weld groove must be mechanically cleaned to a bright finish before welding begins?
A. ?1/2 in. (13 mm) B. ?3/4 in. (19 mm) C. ?1 in. (25 mm) D. ?2 in. (50 mm)
To cover a door width of 6?, the number of pairs of bifold doors required is _____
a. two b. three c. four d. five