When setting up the welding equipment for GMAW on aluminum pipe, turn the welding machine on and
_____.
a. purge the gun per manufacturer instructions
b. set the voltage to the maximum setting
c. discharge any remaining water from the hoses
d. disable the current-slope adjustment
a
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To reduce cracking during welding of aluminum:
A) Choose smaller continuous welds rather than intermittent welds B) Fill craters when ending weld C) Choose a filler metal with a very different chemistry D) All of the above
The periodic recharging of dynamic RAM memory cells is called ________
Fill in the blank(s) with correct word
What type of mixing valves sense leaving water temperature and cause the hot and cold controls to reposition themselves if the discharge water temperature changes?
A. pressure balancing B. thermostatic C. combination pressure balancing and thermostatic D. electronic
A bore measurement must be made with what two tools?
A. An inside micrometer and a ruler B. Calipers and an outside micrometer C. An outside micrometer and a telescoping gauge D. A ruler and a telescoping gauge