¿Cuál de los siguientes diámetros de tuberías requiere la menor cantidad de roscas por pulgada?
a. 1/2 pulgada (1,27 cm)
b. 1 pulgada (2,54 cm)
c. 2 pulgadas (5,08 cm)
d. 3 pulgadas (7,62 cm)
Answer: D
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