Enviromental Control 2
AUTOTEST 4
 
 

1.- Explain how to determine the number of general lighting circuits.
 
 
 

2.- How many 20A general lighting circuits would be needed to satisfy the “minimum” code requirements for a 3000 sq. ft. Residence?
 
 
 

3.- The two kitchen and one laundry circuits should be rated _______________amperes, ______________ volts, and wired with AWG No.? __________________conductors.

4.- Name three places where GFCI receptacles are required.
 
 

5.- A garage door opener (must have-does not need) a GFCI protected circuit.

6.- Explain what is meant by:

  a) ground fault
  b) short circuit
 
 

7.- What is the minimum size grounding conductor permitted for grounding raceways of equipment of a 60A circuit?
 
 
 

8.- It is permitted to clamp telephone conductors to the electrical service entrance.

  a) True  b) False

9.- A 200 amps service entrance needs AWG conductors __________________, AWG ground conductor______________ and service entrance conduit __________________.
 

10.- The grounding electrode should be buried under grade level __________________ft.

11.- A 5000 W, 240 V heater has a current equal to ____________________Amps.

12.- The power loss in Watts for a conductor that carries 30 Amps and has a voltage drop of 7 Volts is _________________________.
 

13.- For a 3600 sq. ft. unit with the following loads:

  1500 VA dishwasher
  1000 VA disposal
  8000 VA range
  5000 VA W.H.
  4500 VA dryer
  8500 VA A/C

 Calculate:

  a) The feeder conductor size
  b) The grounding copper conductor size