Which of the following makes the best conductor?
a. Rubber
b. Aluminum
c. Glass
d. Plastic
b. Aluminum
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Answer the following statement(s) true (T) or false (F)
1. The wattage rating of a resistor indicates the amount of heat that the resistor can dissipate without damage. 2. Variable resistors have a set ohm value that cannot be changed. 3. A capacitor is a battery. 4. Capacitance is measured in Henrys. 5. An inductor’s ability to set up a magnetic field is called inductance.
The water temperature range found in a radiant floor heating system is normally _____.
a. 75°–90°F (24°–32°C) b. 90°–110°F (32°–43°C) c. 110°–160°F (43°–71°C) d. 160°–200°F (71°–93°C)
The rolling tower, or ____ scaffold, is widely used for small jobs, generally not more than 20 feet in height.
a.jackleg b.provisional c.mobile d.temporary
Wiring for a four-port multisplit system runs:
A) One wire to each indoor unit. B) Four wires to each indoor unit. C) Three wires to each indoor unit. D) Two wires to each indoor unit.