Sensors are being discussed: Technician A says most speed sensors are AC generators. Technician B says most speed sensors use a stationary magnet, rotor, and a voltage sensor. Who is correct?
C. Both A and B
B. B only D. Neither A nor B
A. A only
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As a general rule, a panelboard for which more than 10 percent of its overcurrent devices are rated at ____ amperes or less, and for which neutral connections are provided, is defined as a lighting and appliance branch-circuit panelboard.
A. 10 B. 20 C. 30 D. 40
The AISC ____, a valuable reference source in preparing sectional drawings, is helpful in clarifying any ambiguities relative to proper callouts and dimensions.
A. Structural Steel Detailing B. Guide to Steel Construction C. Manual of Steel Construction D. The Steel Construction Reference
Iron and aluminum hydrous oxides are characteristic of soils that are highly weathered chemically
Indicate whether the statement is true or false
What material are most of the wires in your house made of?
A) Copper B) Gold C) Silver D) Steel