Technology EducationDepartment
Advanced Technical Drawing - Architecture

Study Questions for Step 9 - Part 1

1. List the three (3) primary mechanical systems found in commercial buildings:
   
2. List the two (2) secondary mechanical systems found in commercial buildings:
   
3. What is the purpose of the electrical plan for a commercial building?
   
4. List the five common components of an electrical system for a small commercial building:
   
5. How do commercial electrical plans differ from residential electrical plans?
   
6. What is the difference between primary and secondary electrical service?
   
7. What type of service voltage is provided for small commercial buildings?
   
8. In what situations or conditions is emergency service necessary?
   
9. List two methods of providing emergency service:
   
10. What is the function of the following components:
    Service Switch
    Distribution Panel
    Circuit Breaker
    Bus Duct
    Pull Box
    
11. What is the purpose of a "Riser Diagram"?
    
12. What determines the number of circuits in a building and the number of outlets or fixtures on a circuit?
    
13. Sketch the appropriate symbol for the following:
    Wall mounted light fixture
    Ceiling mounted light fixture
    Fluorescent fixture
    Recessed lighting fixtures
    Continuous fluorescent fixtures
    Illuminated exit sign
    Duplex receptacle
    Special receptacle
    Quad receptacle
    Clock outlet
    Floor outlet
    GFI outlet
    Weather proof outlet
    220 outlet
    Exhaust fan
    Ceiling fan
    Exhaust fan w/light
    Ceiling fan w/light
    Exhaust fan w/light & heater
    Attic fan
    Single pole switch
    Low voltage switch
    3-way switch
    4-way switch
    Door switch
    Switch / receptacle combined
    Pilot light switch
    Remote controlled switch
    Dimmer switch
    Relay switch
    Bell Buzzer
    Fire (heat) detector
    Smoke detector
    Fire alarm station
    Intrusion detector
    Control panels
    Push buttons
    Speakers outlets
    Telephone outlets
    Intercom outlets
    Television outlets
    Computer outlets
    Circuit breaker
    Transformer
    Electric meter
    Main switch
    Electrical Panel
    Pull box
    BX wiring
    Romex wiring
    Conduit & wire in ceiling
    Conduit & wire in floor
    Conduit & wire exposed
    Flexible conduit
    Empty conduit
    Metal raceway
    Multi-outlet assembly

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