GMAW power supplies are:
A) DCEN B) Constant current C) Constant voltage D) AC/DC
C
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As the adjusting spring on an evaporator pressure regulator is tightened, the pressure in the evaporator will ____.
A. increase B. decrease C. remain the same D. cause the box temperature to decrease
When there are questions by the general contractor to the Inspector, the Inspector should:
A. resolve them if they are within his or her authority. B. refer to the City Building Department. C. ignore them. D. approve everything the contractor submits. E. answer them only by issuing an addenda.
All of the following are system bus types except ________
A) asynchronous B) quasi-synchronous C) synchronous D) semi-synchronous
Which of these actions is taken to prevent over-pressurizing the torch hoses during equipment setup?
a. Opening the tank valve slowly. b. Turning the regulator adjusting screw counterclockwise (out). c. Turning the regulator adjusting screw clockwise (in). d. Installing flashback arrestors.