?The operating voltage required for air carbon arc welding is ___________.
A. ?35 volts or higher
B. ?18 volts or higher
C. ?120 volts or 240 volts
D. ?24 volts or lower
Answer: A
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IDENTIFY TEST PROCESS SYMBOLS AND DIAGRAMS
The ideal gas law shows the relationship among some common properties of ideal gases.
pV = nRT where p = pressure V = volume n = number of moles of the ideal gas R = universal gas constant = 8.314 kJ?(kmol K) T = absolute temperature If you have 8 moles of an ideal gas at 35 degrees Celsius and it is stored container with inside dimensions of 0.750 meters on each side, calculate the pressure in Pa.
Answer the following statements true (T) or false (F)
1) Hot work is any work that involves welding, cutting, chipping, or any other process that creates sparks. 2) OSHA requires that all organizations develop fire-prevention plans for its approval. 3) Wood, paper, and trash fires are considered Class A fires. 4) The responsibilities of the industrial hygienist include mechanical safeguarding. 5) The OSH Act established specific requirements relating to industrial hygiene.
The soldier who stood in line with his fellows in the rectangular formation of infantry was called a
a. hoplite. b. phalanx. c. oligarch. d. helot.