Applications of the ____ amplifier include computers, measuring and test instruments, and industrial control equipment.
A. DC
B. Audio
C. Operational
D. RF
Answer: A
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Metal bridging is placed at the center of spans over 10 feet and where the joists pass over the girder. Determine the number of pieces of metal bridging needed for the floor in Figure 14.61.
What will be an ideal response?
Aggregate used to stabilize an access road for heavy equipment should have a diameter of _____
a. 1 inch or less b. 2 to 4 inches c. 3 to 6 inches d. 5 to 8 inches
One advantage of rooftop units on small commercial buildings is that
A) they are easier to service than systems located inside the building B) they operate more efficiently than systems located inside the building C) they are available in larger capacities than central station systems D) they offer a substantial savings of space within the building
ASE-Style Multiple Choice Which of the following statements is LEAST-Likely true?
A. Machine screws are threaded their full length and are relatively weak. B. Set screws frequently have an internal drive head for an Allen wrench and are used to hold parts onto shafts. C. Sheet metal screws have pointed or tapered tips; they thread into sheet metal for light holding tasks. D. Headlight aiming screws have a washer attached to them, which improves appearance and helps keep the trim from shifting.