The two most popular thermal cutting processes are oxyacetylene cutting (OAW) and ____.
A. plasma arc cutting (PAC)
B. gas metal arc cutting(GMAC)
C. flux cored arc cutting (FCAC)
D. shielded metal arc cutting (SMAC)
Answer: A
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In a certain community, levels of air pollution may exceed federal standards for ozone or for particulate matter on some days. For a particular summer season, let X be the number of days on which the ozone standard is exceeded and let Ybe the number of days on which the particulate matter standard is exceeded. Assume that the joint probability mass function of X and Y is given in the following table:
a. Find P(X=1 and Y=0).
b. Find P(X ? 1 and Y < 2).
c. Find P(X < 1).
d. Find P(Y ? 1).
e. Find the probability that the standard for ozone is exceeded at least once.
f. Find the probability that the standard for particulate matter is never exceeded.
g. Find the probability that neither standard is ever exceeded.
The lockout/tagout procedure applies to vehicles that _______
A) Have broken door locks B) Are partially disassembled C) Are parked but not locked D) Have lost license tags
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Answer the following statement true (T) or false (F)