Explain the diff erence in job responsibilities of general contractors, heavy and civil engineering contractors, and specialty trade contractors.
What will be an ideal response?
General contractors build residential, industrial, commercial, and other
buildings, as shown in Figure 6.3. Heavy and civil engineering construction
contractors build sewers, roads, highways, bridges, tunnels, and other
projects. Specialty trade contractors perform specialized activities related
to construction, such as carpentry, painting, plumbing, and electrical work.
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Determine the minimum green times for each approach in Problem 8-11 if the effective crosswalk width in each direction is 8 ft and the number of pedestrians crossing during an interval is 30 in the E-W direction and 25 in the N-S direction.
What will be an ideal response?
An RL time constant is the time required for the current in an RL switching circuit to increase (or decrease) by what percent of its maximum possible ?I?
A) 95% B) 63.2% C) 98.2% D) 86.5%
____ is the maximum departure of the value of an alternating current or wave from the average value.
A. Amplitude B. Peak value C. Peak-to-peak value D. Effective value