In agricultural buildings that require equipotential planes, the equipotential plane must be bonded to the grounding system with a bare or insulated solid copper wire no smaller than _____.
a. No 8 AWG
b. No 6 AWG
c. No 4 AWG
d. No 3 AWG
a. No 8 AWG
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Air fills a 2-m-diameter balloon at 20ºC and 5 kPa gage. Additional air is forced into the balloon until it reaches 8 m in diameter at a gage pressure of 8 kPa, while the temperature remains constant. The added mass is nearest:
A) 339 kg B) 301 kg C) 287 kg D) 269 kg
In a(n) ____________________-type ignition system, a weak battery can cause ignition failure.
Fill in the blank(s) with the appropriate word(s).
Answer the following statement(s) true (T) or false (F)
1. Dynamic braking is a method used to help bring a motor to a quicker stop with the extensive use of friction brakes. 2. The starting current of a squirrel-cage induction motor can be reduced by using a resistance starter controller, which inserts equal resistance values in each line wire at the instant the motor is started. 3. An automatic compensator is used to automatically connect an autotransformer in series with the motor during the starting cycle, which results in a reduced starting current. 4. When an electronic controller for wound-rotor motors includes power resistors inserted into the secondary rotor circuit, the more resistance inserted, the slower the speed of the motor. 5. Local building and electrical code authorities should be consulted before installations are made with motors and controllers that do not comply with National Electrical Code® rulings.
When placing symbols on the floor plan, you should represent the kitchen plumbing fixtures, such as the main work sink, vegetable sink or party sink, on the ____ layer.
A. FLOR STRS B. FLOR APPL C. FLOR PLMB D. FLOR DECK