Shop air quality is being discussed. Technician A says a restricted chimney on a shop furnace may cause carbon monoxide in the shop air. Technician B says monitors are available to measure the level of carbon monoxide in the shop air. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: C
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In the AWS specification for carbon steel-covered arc electrodes, a 4 to the right of the tensile strength indicates the following welding position(s): ____.
A. flat, horizontal, overhead, and vertical-down B. all positions flat, horizontal, vertical, and overhead C. flat only and is no longer used D. horizontal fillets and flat
Ratios can help explain why one building is more expensive than another.
Answer the following statement true (T) or false (F)
When jump starting a vehicle, what is the last connection that should be made?
A) Negative jumper cable on metal away from battery in dead vehicle B) Positive battery terminal on good battery C) Positive battery terminal on dead battery D) None of these
Answer the following statement(s) true (T) or false (F)
1. Composites are created by combing two or more solid materials to make a new material that has properties that are superior to those of the individual components. 2. Composite materials consist of two main ingredients: matrix material and fibers. 3. The term fluids refers to liquids, not gases. 4. Air and water are among the most abundant fluids on earth. 5. Air is a mixture of mostly oxygen, and small amounts of other gases.