____ switches are used to control a 240-volt load, such as a water heater, in a residential wiring system.
a. Single-pole
b. Double-pole
c. Three-way
d. Four-way
b. Double-pole
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A cable hanger elbow is used to _____.
a. suspend cables in long vertical runs b. divide a section of cable tray c. support piping d. make vertical offsets
When does scavenging occur in the 4-stroke, diesel cycle?
A. throughout intake stroke B. throughout exhaust stroke C. valve overlap D. inertial exhaust phase
A motorized cultivator with a first cost of $28,000 and salvage value of 25% of the first cost is depreciated by the DDB method over a 5-year period. If the operating cost is $43,000 per year, the depreciation charge for year 2 is closest to: (choose one)
(a) $18,000 (b) $11,200 (c) $6720 (d) $4350
A demarcation device used to terminate communication cable can be a:
A) RJ48 Registered Jack B) 66 Block C) Network interface device D) Fiber Distribution Panel E) All of the above