CSLB C-10 Electrical ContractorPlanning and EstimatingEasy
A blueprint indicates a symbol consisting of a circle with two diagonal lines crossing through it, and a 'WP' subscript. What does this symbol typically represent in an electrical drawing?
- AWeatherproof Receptacle
- BWireless Access Point
- CWall-Mounted Panel
- DWater Pump Connection
Show answer & explanationAnswer & explanation
Correct answer: A. Weatherproof Receptacle
Standard electrical symbols often use a circle with diagonal lines for a receptacle, and the 'WP' subscript commonly denotes 'Weatherproof' or 'Wet-Proof', indicating an outdoor or damp location rated receptacle.
Why the other options are wrong
- B. Incorrect. A wireless access point would have a specific data/communication symbol, not this power receptacle symbol.
- C. Incorrect. A wall-mounted panel symbol would typically be a rectangle with additional annotations, not a circle with diagonal lines.
- D. Incorrect. A water pump connection would have a different symbol, likely indicating a motor or specific equipment connection.
Electrical Blueprint Symbols
Graphical representations used on construction drawings to denote various electrical components, devices, and wiring methods.
- Standardized by industry organizations (e.g., ANSI, IEEE, NEMA).
- Essential for interpreting electrical plans and performing material takeoffs.
- Symbols can have modifiers (e.g., subscripts, additional lines) for specific characteristics.
Memory trick: Shape and Subscript tell the tale of the device.