A 555 IC configured as a oneshot has an R of 20 k? and a C of 2.2 ?F. The pulse width of the timer's output signal is
A) 44 ms B) 48 ms C) 44 ?s D) 48 ?s
B
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Equipment intended to interrupt current at fault levels must have an interrupting rating at nominal circuit voltage that is _____.
a. equal to the current available at the line terminals of the equipment b. 125% of the current available at the line terminals of the equipment c. 150% of the current available at the line terminals of the equipment d. 200% of the current available at the line terminals of the equipment
Describe the difference between (a) reinforcing steel and prestressing steel, (b) formwork and shores, (c) formwork and flying forms, and (d) shoring and reshoring.
What will be an ideal response?
The design of a ceiling in a large office building calls for a multilevel series of ceiling planes finished with gypsum board. The most likely method for attaching the ceiling to the structure is to
A) nail gypsum board directly to the wood light-frame structure. B) use lay-in acoustical tile. C) screw the gypsum board directly to a suspended metal framework.
The most important rule in freehand sketching is to keep the sketch in ______________
Fill in the blank(s) with correct word