Los cuadros de distribución instalados en teatros y lugares similares deben ser de tipo _____ y cumplir con NEC® Artículo 408, a menos que se determine que este cuadro califica para el uso como cuadro de distribución para escenarios.
a. totalmente cerrado
b. no metálico
c. de frente muerto
d. de doble aislamiento
c. de frente muerto
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Use the finished drawing from Problem P8–7 to complete this problem. Construct profiles A-A, B-B, C-C, D-D, E-E, and F-F shown in Figure P11–6. Profile D-D cuts through the transit station, point A. The other profiles are 50? apart. Each profile should be only as long as the distance between property lines along the profile. Draw the profiles using a 1?? = 100? horizontal scale and a
1?? = 10? vertical scale on an appropriate size sheet. Show all profiles on a single sheet. Label vertical elevations and indicate horizontal and vertical scales. Label each profile with a title, such as PROFILE A-A. What will be an ideal response?What will be an ideal response?
Discuss some crops that might be grown in a 3- or 4-year rotation for soil disease
control.
What will be an ideal response?In a heavy-duty diesel engine, which of the following is more likely to be described as tuned?
A. intake manifold B. air to air cooler C. exhaust manifold D. main exhaust pipe
The use of crop rotation helps lessen the damaging effects from insects
Indicate whether the statement is true or false