For 480V circuits, the arc current seldom exceeds _____.

a. 20% of the available bolted fault current
b. 40% of the available bolted fault current
c. 60% of the available bolted fault current
d. 80% of the available bolted fault current


c. 60% of the available bolted fault current

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El nombre del gas contenido dentro de un cilindro de oxígeno se encuentra impreso, etiquetado o pintado en el/la _____ de cada cilindro.

a. parte de arriba b. en el hombro c. parte de abajo d. lado

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Job-built forms for square or rectangular columns are built of plywood sheets and battens of _____.

a. 2" × 8" lumber b. 2" × 6" lumber c. 2" × 4" lumber d. 2" × 2" lumber

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The stick-system type of curtain wall is commonly used on buildings of less than _____.

a. 15 stories b. 12 stories c. 5 stories d. 3 stories

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Sketching and aligning the proportional rectangles for a multiview sketch is an important first step.

Answer the following statement true (T) or false (F)

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