A fitting that is used to change the direction of a pipe by 180 degrees is a _____.
a. return bend
b. 90-degree ell
c. backflow cap
d. circular J
a. return bend
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Para determinar el índice de polarización de un motor:
`a. se mide el voltaje residual del bobinado. b. se mide la fuerza del campo magnético (bobinado). c. se observa el tamaño del arrancador del motor. d. Se compara la resistencia de aislamiento del bobinado a lo largo del tiempo de prueba.
Commercial rodent diets can be supplemented with small amounts of dry ____________________ food
Fill in the blank(s) with correct word
Which of the following is an example of the working horses used for ranch transportation?
a. Appaloosa c. Percheron b. Thoroughbred d. Standardbred
The ____ option of the grep command displays only lines that do not contain the search pattern.
A. -v B. -n C. -o D. -r