Wireways are ____ housing and protecting electric wires (and cables).
A. conductors for signaling circuits between a motor
B. troughs with hinged or removable covers for
C. ceiling fixtures connecting to luminaires or
D. current carrying junction boxes
Answer: B
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Para evitar que el concreto se congele antes de que se cure con un clima frío, se puede utilizar _____.
a. losas de celdas plásticas expandidas b. compuestos de curado c. agua potable d. revestimientos plásticos
Technician A says that if a distributor has a gear on the bottom of its shaft, the oil pump cannot be primed in the normal way. Technician B says the lubrication system can be primed with a pressure primer. Who is correct?
A. Technician A B. Technician B C. Both technicians D. Neither technician
In binomial nomenclature, the second part of the name identifies the ____________________
Fill in the blank(s) with correct word
The relay logic and truth table shown in the figure above, represents a(n) _____
a. AND function
b. OR function
c. NOR function
d. NAND function