Which of the following is true of welding codes and specifications?
A. The selection of the specific code to use is made by the welder.
B. They are guidelines and must be qualified for specific applications by testing.
C. The code and specification ensure the product need not be inspected or tested.
D. A welding code and a welding specification are the same thing.
Answer: B
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a. ferrule b. blade-type c. Edison-base d. safety
Dry friction depends on the force that presses two forces together and on
_________________ . A. the size of the surface area of the two surfaces B. the speed at which the two surfaces areas move past each other C. the type of materials of which the two surfaces are made D. All of the above
Name the section produced when the cutting plane is parallel to the short axis of the structure, and is often referred to as a cross section. The cutting plane for this section is usually parallel to the materials used to frame the roof, ceiling, and floor systems and generally shows the shape of the structure better.
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When determining whether a tractor-trailer is within the limits of state or provincial laws, the key factors to be considered, in addition to vehicle length, include
A. the number of axles B. vehicle weight C. vehicle height D. all of the above