?How is the root pass made on pipe?
What will be an ideal response?
?The root pass is made as a stringer bead with the GMA welding process unless a backing ring is used; then it can be made with the FCA welding process. As you pass over the top of the pipe and start downhill, change to a slight backhand angle that will increase to approximately a 45°angle. Watch the leading edge of the molten weld pool to see if you have a keyhole, which indicates you are getting 100% penetration.
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Under what conditions would you recommend the use of each of the following intersection control devices at urban intersections below:
(a) yield sign (b) stop sign (c) multiway stop sign What will be an ideal response?
Technician A says that all tires sold for passenger vehicle use must be approved by the DOT. Technician B says that the DOT code will indicate the build date of the tire. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Inclining the sides of a trench in a series of steps to prevent cave-ins is known as _____
a. backstepping b. benching c. tiering d. pyramiding
When determining the true length of a line, the fold line must be drawn _____ to the line.
A. tangent B. perpendicular C. parallel D. at 45 degrees