Which of the following stores the address of the last entry of the stack?
A) instruction register B) program counter C) interrupt control D) stack pointer
D
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?GMAW and ____ welding are the first choice for many welding fabricators because these processes are cost effective, produce high- quality welds, and are flexible and versatile.
A. ?FCAW B. ?OAW C. ?SMAW D. ?GTAW
Atmospheric pressure is created by:
A) Centrifugal force created by the spinning of the earth. B) The weight of the air in the atmosphere. C) There is no such thing as atmospheric pressure. D) The earth's magnetic field.
The correct shutoff procedure for an oxyacetylene torch is:
A) Place the torch tip under water until it extinguishes and then shut off the torch valves. B) Close the oxygen first and then the acetylene. C) Close the acetylene first and then the oxygen. D) Close the oxygen and acetylene simultaneously.
The amount of a pesticide that hits the target pest is usually ________ of the amount applied to the ecosystem
A) 25 to 50% B) 75 to 95% C) less than 5% D) 50 to 75% E) 20 to 25%