A(n) ____ flip-flop is useful where only one data bit (1 or 0) is to be stored.
A. RS
B. Clocked RS
C. D
D. JK
Answer: C
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Which of the following statements about grounding of equipment is true?
A. Electrical equipment is considered grounded if secured to and in electrical contact with a metal rack or structure that is properly grounded. B. Rack-mounted electrical equipment is not considered grounded unless an equipment grounding conductor is connected to each piece of equipment. C. The structural metal frame of a building that is bonded is permitted to be used as the required equipment grounding conductor for ac equipment. D. The structural metal frame of a building that is not bonded is permitted to be used as the required equipment grounding conductor for ac equipment.
To be considered a mobile crane, a crane needs _____.
a. a means of propulsion and/or travel b. to be capable of travel on public roads c. a hydraulic boom d. crawler tracks
In a chilled-water system, the temperature of the water leaving the chiller is typically maintained at _____.
a. 32°F b. 38°F c. 45°F d. 50°F
What are the two characteristics of the runout tolerance?
What will be an ideal response?