The most common plasma arc cutting torch uses _____
a. a pilot arc with the transferred arc process
b. a pilot arc with the nontransferred arc process
c. contact starting with the oxyfuel pilot process
d. discharge starting with the common arc process
a
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?Why would a welder need extra burn protection for their eyes when making an axial spray weld?
A. ?To protect the eye from the increased weld spatter. B. ?To protect the eye from the increased heat produced by axial spray arc welding. C. ?The high welding current produces a great deal of UV light. D. ?The hot metal can cause infrared light burns to the eye and face.
What tool is used to remove the hex head machine screws in equipment panels?
A) Adjustable wrench B) The nut driver C) Locking pliers D) Phillips head screwdriver
The low-side pressure is low and the high-side pressure is higher than normal. What is the most likely cause?
A) Low refrigerant charge level B) System is overcharged. Expansion valve is stuck open C) Restriction on the los-side line D) Restriction on the high-side line
Energy can be neither created nor can it be destroyed, however, it can be ____________________ from one form to another.
Fill in the blank(s) with the appropriate word(s).