Article 220 branch circuit, feeder, and service
load calculations exam questions and answers
Blank; is the conduit and tubing fill tables; for conductors and
fixture wires of the same size? -
correct answer ✅Annex C
Which article is the primary requirements for load calculations? -
correct answer ✅Article 220
Which article indicates the nominal voltage calculations? -
correct answer ✅220.5
Which table indicates the unit load; VA per sq ft for lighting loads? -
correct answer ✅Table 220 12
In dwelling units, and guest rooms or guest suites of hotels; motels;
and similar occupancies; the voltage shall not exceed; blank; volts
nominal between conductors? -
correct answer ✅120 volts
What gets subtracted out in a general lighting branch circuit
calculation? -
correct answer ✅Attached garage and open porch
, Article 220 branch circuit, feeder, and service
load calculations exam questions and answers
Blank; does not count toward calculations of sq ft; and dimensions;
and is not used in the calculations? -
correct answer ✅Detached garage
How to determine the minimum number of branch circuits? -
correct answer ✅The total computed load; the size or rating of the
circuits used; lighting loads either 15 or 20 ampere circuits; and the
dwelling unit lighting voltage
How to determine the amount of required 15 or 20 ampere branch
circuits? -
correct answer ✅By dividing the lighting load ampere by the 15 or
20 ampere branch circuit; after calculating the general lighting
branch circuit
True or false; small appliance branch circuits are not to be
considered general purpose receptacles? -
correct answer ✅True
What is general purpose receptacles? -
correct answer ✅Wall receptacles 6'; 12' rule; any wall space; 2' or
wider and requires a receptacle
load calculations exam questions and answers
Blank; is the conduit and tubing fill tables; for conductors and
fixture wires of the same size? -
correct answer ✅Annex C
Which article is the primary requirements for load calculations? -
correct answer ✅Article 220
Which article indicates the nominal voltage calculations? -
correct answer ✅220.5
Which table indicates the unit load; VA per sq ft for lighting loads? -
correct answer ✅Table 220 12
In dwelling units, and guest rooms or guest suites of hotels; motels;
and similar occupancies; the voltage shall not exceed; blank; volts
nominal between conductors? -
correct answer ✅120 volts
What gets subtracted out in a general lighting branch circuit
calculation? -
correct answer ✅Attached garage and open porch
, Article 220 branch circuit, feeder, and service
load calculations exam questions and answers
Blank; does not count toward calculations of sq ft; and dimensions;
and is not used in the calculations? -
correct answer ✅Detached garage
How to determine the minimum number of branch circuits? -
correct answer ✅The total computed load; the size or rating of the
circuits used; lighting loads either 15 or 20 ampere circuits; and the
dwelling unit lighting voltage
How to determine the amount of required 15 or 20 ampere branch
circuits? -
correct answer ✅By dividing the lighting load ampere by the 15 or
20 ampere branch circuit; after calculating the general lighting
branch circuit
True or false; small appliance branch circuits are not to be
considered general purpose receptacles? -
correct answer ✅True
What is general purpose receptacles? -
correct answer ✅Wall receptacles 6'; 12' rule; any wall space; 2' or
wider and requires a receptacle
