¿Cuál es la altura de un puntal cuando un edificio tiene un techo interior de tablaroca de 1 /2" (1.3 cm), una base del piso de 5 /8" (1.6 cm), un contrapiso de 3 /4" (1.9 cm) y una altura de techo interior de 8' (2.4 m)?
a. 911
?4" (2.317 m)
b. 923
?4" (2.355 m)
c. 925
?8" (2.352 m)
d. 93" (2.362 m)
Answer: C
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