¿Cuántas piezas de madero de 16' (4.9 m) son necesarias para las zapatas, los travesaños superiores y los travesaños superiores dobles de un edificio de 40' (12.2 m) de ancho y de 30' (9.1 m) de largo?
a. 18
b. 27
c. 22
d. 33
Answer: B
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Technician A says that a good relay should measure between 60 and 100 ohms across the coil terminals. Technician B says that OL should be displayed on an ohmmeter when touching terminals 30 and 87. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
Which of the following filters would be appropriate for a large industrial air handler?
A) a 16" × 20" × 1" panel filter B) an electronic air cleaner C) a large fiberglass roll filter D) a washable hogs hair filter
Each ISP's network may vary in all of the following aspects except:
A) the rules it has to follow for traffic to flow through the network unhindered B) the protocol used to carry the information C) traffic speed D) the types of circuits used to interconnect to the customer E) all of the above
Some light-duty PAC equipment has a built-in _____
a. water tank b. argon gas cylinder c. air compressor d. battery-operated power supply