Should the backing strip be left on the finished weld or removed following welding? How is that indicated?
What will be an ideal response?
The backing may be either left on the finished weld or removed following welding. If the backing is to be removed, the letter R is placed in the backing symbol. The backing is often removed for a finished weld because it can be a source of stress concentration and a crevice to promote rusting.
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Technician A says that most OEMs recommend the use of aftermarket diesel fuel conditioners for winter operation. Technician B says that diesel fuel refiners adjust the diesel fuel to perform in winter temperatures. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
In binary multiplication, 1 × 0 = ________
A) 0 with a carry of 1 B) 1 C) 0 D) 1 with a carry of 0
Technician A says under ideal combustion, all the nitrogen entering the combustion chamber will leave the combustion chamber unchanged. Technician B says under ideal combustion, all the oxygen and all the hydrocarbons are chemically recombined to produce carbon dioxide and water. Who is correct?
A. A only B. B only C. both A and B D. neither A nor B
A datum is considered a theoretically perfect surface, plane, point, or axis.
Answer the following statement true (T) or false (F)