Elect 1 Module 11 Residential Electrical Services Exam – electrical systems concepts, service
installation, and exam revision material
Which of the following locations at dwelling units require GFCI protection? - correct answer
✔✔a. Receptacles within garages
Which type of cable with a corrugated sheath has a maximum bend radius of 7 times the cable
diameter? - correct answer ✔✔a. type MC
Which of the following circuits require 20A of overcurrent protection? - correct answer ✔✔c.
Residential small appliance branch circuits
According to the NEC, which of the following is required for the small appliances shall be
permissible to apply a demand factor of 75%? - correct answer ✔✔b. fixed appliances
The NEC allows the load calculation for the ground neutral conductor supplying electric ranges
and dryers to have a demand factor of? - correct answer ✔✔b. 70%
Which of the following is required to carry the lighting load for the residence in the figure
above? - correct answer ✔✔c. Two 15A circuits
How many square feet of livable space are in the home in the figure above? - correct answer
✔✔d. 12,000
Which of the following is the minimum NEC lighting load requirement for the home in the figure
above? - correct answer ✔✔c. 3,600VA
Which of the following is an NEC-approved grounding electrode? - correct answer ✔✔a. Metal
underground water pipe in direct contact with the earth for 10 feet
installation, and exam revision material
Which of the following locations at dwelling units require GFCI protection? - correct answer
✔✔a. Receptacles within garages
Which type of cable with a corrugated sheath has a maximum bend radius of 7 times the cable
diameter? - correct answer ✔✔a. type MC
Which of the following circuits require 20A of overcurrent protection? - correct answer ✔✔c.
Residential small appliance branch circuits
According to the NEC, which of the following is required for the small appliances shall be
permissible to apply a demand factor of 75%? - correct answer ✔✔b. fixed appliances
The NEC allows the load calculation for the ground neutral conductor supplying electric ranges
and dryers to have a demand factor of? - correct answer ✔✔b. 70%
Which of the following is required to carry the lighting load for the residence in the figure
above? - correct answer ✔✔c. Two 15A circuits
How many square feet of livable space are in the home in the figure above? - correct answer
✔✔d. 12,000
Which of the following is the minimum NEC lighting load requirement for the home in the figure
above? - correct answer ✔✔c. 3,600VA
Which of the following is an NEC-approved grounding electrode? - correct answer ✔✔a. Metal
underground water pipe in direct contact with the earth for 10 feet
