Unlike the rectangular ducts, with circular ducts there is only one type of commonly used seam and that is the round seam.
Answer the following statement true (T) or false (F)
False
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The two most important cross-sectional shapes in cold-formed steel construction are C-shape section and U-shape section. In which members of the walls, floors, and roofs are C-shape and U-shape sections used?
What will be an ideal response?
Technician A says that CO and HC levels should increase if the AIR hoses are pinched off. Technician B says that a defective drive belt may cause AIR system problems. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
If a wire is passed through a magnetic field at right angles:
a. current flow is induced in the wire b. the wire is drawn to the north pole c. the wire is drawn to the south pole d. the wire heats up
When using a permanent backing ring, insert the ring inside one of the coupons and make an allowance for
the root opening, which can be up to _____. a. 1/4" (6.4 mm) b. 3/16" (4.8 mm) c. 1/8" (3.2 mm) d. 3/32" (2.4 mm)