In the NEC®, Article __________ contains requirements for grounding and bonding residential electrical systems.
a. 200
b. 230
c. 240
d. 250
d. 250
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To remove green stains from a wall, spray the wall with _____ .
A. a muriatic acid solution B. water C. a solution of potassium or sodium hydroxide D. a solution of acetic acid and hydrogen peroxide
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A specific color that has been darkened through the addition of black is called what?
A. a shade B. a secondary C. CMYK D. a tint
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A wind turbine is rated at 41% efficiency. If the wind has 1,350 kW of power, the electric power output expected should be:?
A. ?55.35 kW B. ?553.50 kW C. ?796.50 kW D. ?1,294.65 kW
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Explain why granite is the most durable of all building stones. Where would you recommend the use of granite?
What will be an ideal response?
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