Explain the difference between a main lug panelboard and a main circuit breaker panelboard _______.
What will be an ideal response?
A main lug panelboard connects Phase A and Phase B directly to the panelboard. A main circuit breaker panelboard connects Phase A and B to the main disconnect.
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Use the accompanying figure. If H = 5.100 in, L = 5.130 in, and W = 5.000 in, what is the measure of angle CAB? Give your answer to the nearest hundredth of a degree.
A. 54.6 B. 55.6 C. 56.7 D. 57.8
1.2 kg of liquid water initially at 15°C is to be heated to 95°C in a teapot equipped with a 1200-W electric heating element inside. The teapot is 0.5 kg and has an average specific heat of 0.7?kJ/kg•K. Taking the specific heat of water to be 4.18 kJ/kg•K and disregarding any heat loss from the teapot, determine how long it will take for the water to be heated.
What will be an ideal response?
Lambs are routinely _____ at the time of castration.
Fill in the blank(s) with the appropriate word(s).
Performing quantity takeoffs for ____ projects requires making cubic yard calculations.
A. concrete B. prefabricated steel C. post-and-beam D. laminated arch