Describe the hexadecimal number system and its advantage.
What will be an ideal response?
The hexadecimal number system is referred to as base 16. There are sixteen digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F. The advantage of hexadecimal numbers is they are converted directly from four bits of binary numbers, which can reduce error when entering data.
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El talón de un codo _____.
a. está en la parte trasera del codo b. está en el interior del codo c. está en el lateral del codo d. no está en el codo
Which characteristic automatically categorizes a crane operation as a critical lift?
a. The load is nearly 75 percent of the crane’s load-chart capacity. b. The operation involves a multi-crane lift. c. The crane must travel with the load. d. High-voltage power lines cross the facility involved in the lifting operation.
The two principal shielding gases used for GTAW are _____
a. argon and helium b. nitrogen and oxygen c. argon and carbon dioxide d. hydrogen and carbon dioxide
Which type of cable does not radiate energy and is not affected by nearby magnetic fields?
a. Unshielded. b. Shielded. c. Twisted pair. d. Multipair.