Reference no: EM133712720

Question 1 Determine the total general lighting and receptacle load by calculating the general lighting load, the small-appliance branch circuit load, and the laundry-branch circuit load. Apply any demand factor as applicable. Show your calculations in the word-processing document you created for your answers.

Question 2 Determine the total fixed-in-place appliance load. Show your calculations in the word-processing document you created for your answers.

Question 3 Determine the line and the neutral load for the dryer circuit in this residence. Show your calculations in the word-processing document you created for your answers.

Question 4 Determine the line and the neutral load for the range in this residence. Show your calculations in the word-processing document you created for your answers.

Question 5 Determine the total AC load for the HVAC system in this residence. Show your calculations in the word-processing document you created for your answers.

Question 6 Determine the largest motor load for this residence. Do not consider the AC unit as a motor load. Show your calculations in the word-processing document you created for your answers.

Question 7 Based on your calculations for questions 1-6, determine the total demand in VA for this residence, the minimum service size, and the minimum conductor sizes (THW) for the ungrounded and grounding electrode conductors (assume the neutral conductor to be the same as the ungrounded conductor). Show your calculations in the word-processing document you created for your answers.

Question 8 Which article of the NEC describes the proper placement of outlets in this type of room?
Question 9 Part 1: According to the NEC. what's the maximum wall space allowed between two adjacent outlets?

Part 2: How large must a wall space be to require an outlet?

Part 3: Should an outlet located at seven feet up the wall from the floor, used to power a light fixture, be included in wall-space requirement?

Question 10 If the outlets in this room are supplied by a single 15 A or 20 A circuit, what's the maximum current that can be supplied (in amps) to a cord-and-plug connected load?

Question 11 Indicate which of the following items are considered to be wall space by the NEC. and which items aren't considered to be wall space:
• Fireplace
• Fixed glass panel
• Sliding segment of glass door
• Door opening
• Bar-type counter
• Wall space three feet wide
• Doorway

• Fixed cabinet

Question 12

Part 1: In the figure of the general living space, note that a switch is located close to the door. This switch operates an overhead light fixture. This arrangement is a
requirement of the NEC. Which article of the NEC covers this regulation for a room of this type?

Part 2: Other than the switch shown in the figure, what alternative method can be used to meet the NEC requirement?

Question 13 If the branch circuits supplying the receptacles in the figure are rated at 20 A, what's the minimum ampacity rating of the conductors in the branch circuit?

Question 14 According to the NEC. how many branch circuits that supply the general living space shown in the figure are required to be GFCI-protected?

Question 15 What section of the NEC covers the use of GFCI-protected outlets in a residential kitchen?

Question 16
How many of the outlets shown in the figure are required to be GFCI-protected by the NEC? Identify the location of the outlets you selected on the figure.

Question 17 What's the maximum distance that can separate the two outlets located to the right of the sink in the figure?

Question 18 The outlets along the countertop are to be used for small appliances. What's the minimum number of branch circuits that would be needed to supply just these small-appliance outlets?

Question 19 Part 1: What's the maximum distance (in feet) that the receptacle intended for the refrigerator can be from that appliance?

Part 2: Name two common kitchen appliances that may require receptacle locations to be closer than required by 210.50 due to restrictions on cord lengths.

Question 20 What's the minimum circuit protection (in amps) and wire size needed for each of the required small-appliance circuits?

Question 21 In the figure, note that an electrical outlet is shown on the island in the kitchen area. Is this outlet required by the NEC. or does it represent an NEC violation? Briefly explain your answer.

Question 22 Look again at the island counter in the kitchen. If the countertop above the outlet were extended 12 inches beyond the base of the cabinet to allow bar-stool seating at the counter, would that change the NEC status of the outlet? Briefly explain your answer.

Question 23 Suppose a built-in dishwasher is to be installed in this kitchen. Does the NEC allow the dishwasher to be connected to the existing small-appliance circuits?

Question 24 Can any of the receptacles required for the countertop space be mounted in the actual countertop? Cite an NEC section and condition to support your answer.

Question 25 Does the NEC allow the lighting circuit for a kitchen to be attached to the small-appliance circuits?

Question 26 What's the maximum height that the outlets on either side of the sink can be installed above the countertop surface?

Question 27 If the distance between the outlets on either side of the range in the figure is less than four feet, are both outlets required per the NEC? Briefly explain your answer.

Question 28 What section of the NEC covers the use of GFCI-protected outlets in a residential bathroom?

Question 29 How many of the outlets shown are required to be GFCI-protected by the NEC? Specify which outlets.

Question 30 In what situation would the NEC allow any one of the outlets in this bathroom to supply power to an outlet in another room?

Question 31 The receptacle near the basin in the figure can be mounted on the countertop and, if a listed assembly, ___the countertop. In what position may the receptacle __ be mounted?

Question 32 Look again at the receptacle near the basin. What's the maximum distance the outlet can be from the outside edge of the basin?

Question 33 You're rewiring the bathroom shown in the figure as part of a remodeling project. The customer requests a GFCI receptacle on the back wall of the bathtub area, five feet from the top edge of the tub. Should you comply with the customer request? Cite an NEC section to support your answer.

Question 34 Does the NEC allow the lighting circuit in the bathroom to be connected to the same circuit as the outlet receptacles?

Question 35 What's the demand load for this circuit? (Again, show all of your calculations in your word-processing document.)

Question 36 What size TW copper conductor should be used for the branch circuit? (Show all of your calculations in your word-processing document.)

Question 37 What would be the demand load for this branch circuit? (Show all of your calculations in your word-processing document.)

Question 38 What's the minimum-size TW copper conductor that should be used for this branch circuit? (Show all of your calculations in your word-processing document.)

Question 39 What would be the demand load for all of these items? (Show all of your calculations in your word-processing document.)

Question 40 Review the figures, note all NEC violations in each one, and determine which NEC article has been violated. Organize your answers into a table like the one shown here. Note that the first part has been completed as an example.

Question Part	Description of the NEC Violation	NEC Article Violated
Part 1	Outlet not GFCI-protected	Article 210.8(A)(1)
Part 2	Working space must be of sufficient width	Article 110.26(A)(2)
Part 3	Receptacles improperly spaced bathroom	Article 210.52(C)(1)
Part 4	Open wire connections or improper splicing of branch circuit in bedroom	Article 300.15 (A)(1)
Part 5	Insufficient number of receptacles to serve the kitchen.	Article 210.52 (C)(1)