Boxes must be marked with the words “DANGER — HIGH VOLTAGE — KEEP OUT” if they house conductors over _____.
a. 240V
b. 480V
c. 600V
d. 1,000V
d. 1,000V
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Problem 1.61 For the assembly and loading of Prob. 1.60, determine (a) the aver¬age shearing stress in the pin at C, (b) the average bearing stress at C in member BC, (c) the average bearing stress at B in member BC. Problem 1.60 Two horizontal 5-kip forces are applied to pin B of the assembly shown. Knowing that a pin of 0.8-in. diameter is used at each con¬nection, determine the maximum value of the average normal stress (a) in link AB, (b) in link BC.
Al medir la plancha aislante para cortarla, advierte que hay una protuberancia leve en el costado del conducto. ¿Cuánto debería agregar a la medición de la parte inferior para compensar la protuberancia?
a. 1/2" (1,27 cm) b. 3/4" (1,90 cm) c. 1" (2,54 cm
Slabs that must meet superflat specifications are finished with _____.
a. board screeds b. vibratory truss screeds c. vibratory manual screeds d. metal floats
A full section is the preferred way to draw an isometric section.
Answer the following statement true (T) or false (F)