The television broadcast standard used in the United States is __________.
Answer(s): B
NTSC stands for National Television Standards Committee. The system is also used in Japan. PAL and SECAM are used in other countries.
The symbol above is a/an __________.
Answer(s): A
The symbol is a lamp. A lamp is a transducer that converts electrical energy to light.
When a circuit breaker trips, in what position will you find the operating handle?
Answer(s): C
Conventional circuit breaker handles have four positions: on, off, trip, and reset. When tripped, the handle moves to the middle position.
Which wire is smallest?
Answer(s): D
The smaller the wire, the larger the number
The symbol above stands for __________.
The symbol stands for transformer. Transformers are used to step up (increase) and step down (decrease) AC voltages.
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