Los aparatos de iluminación que distribuyen de 40% a 60% de su luz emitida hacia abajo con equilibrio hacia arriba, con emisión de muy poca luz en ángulos horizontales, se clasifican como aparatos de iluminación _____.
a. directos
b. difusos en general
c. indirectos
d. directos-indirectos
d. directos-indirectos
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Which of the following statements concerning standards and codes is correct?
A) Standards are enforced at a national level. B) Standards describe the industry's best practices. C) Codes are written by government agencies. D) Codes are generally broken into five areas: electrical, plumbing, mechanical, refrigeration, and other.
The run is the vertical distance from end to end of the stairs.
Answer the following statement true (T) or false (F)
____ control is seldom used except in combination with feedback control.
A. Cascade B. Feedforward C. Ratio D. Adaptive E. All of the above
For mowing lawns, the best amount to cut off is two-thirds of the amount of grass growing
Indicate whether the statement is true or false