Which of the following sheet sizes is 420x297mm?
A. A0
B. A1
C. A2
D. A3
E. A4
Answer: D
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a. job management b. observation c. inspection d. occupational
Which of the following conditions is likely to result in a shock hazard?
a. Using a grounded extension cord b. Using a cord from which the grounding conductor has been removed c. Connecting a power tool to a GFCI-protected circuit d. Using a grounded plug in a three-prong receptacle
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If an R-12 refrigeration system is operating with a 25.4 psig suction pressure, what is the evaporator superheat if the evaporator outlet temperature is 34°F?
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