, SOLUTION MANUAL FOR Electrical Wiring
Residential Textbook 9th Edition Ray C. Mullin
Notes
1- The file is chapter after chapter.
2- We have shown you few pages sample.
3- The file contains all Appendix and Excel sheet
if it exists.
4- We have all what you need, we make update
at every time. There are many new editions
waiting you.
5- If you think you purchased the wrong file You
can contact us at every time, we can replace it
with true one.
Our email:
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
Unit 1 - General Information for Electrical Installations
Review
Note: Where applicable, responses should be written in complete sentences.
1. What is the difference between a code and a standard?
a. Codes are standards that deal with life safety issues.
b. Standards describe minimum performance levels.
See Codes and Standards.
2. What Code sets standards for the installation of electrical equipment?
The Canadian Electrical Code, Part I sets the basic standard, with local and provincial codes
as standards that also must be considered. See Codes and Standards.
3. What authority enforces the standards set by the CEC?
The provincial or local electricity inspection authority enforces the standards set by the CEC.
See Codes and Standards.
4. Does the CEC provide minimum or maximum standards?
The CEC standards are minimum standards but are expressed in both minimum and
maximum terms; e.g., Rule 2-308 is a minimum working space of 1 m around electrical
equipment, while Rule 8-104 is a maximum circuit loading. Both of these are minimum
standards. See Codes and Standards.
5. What do the letters CSA signify?
CSA signifies Canadian Standards Association. See Testing and Accreditation | CSA
Group.
6. Does compliance with the CEC always result in an electrical installation that is
adequate, safe, and efficient? Why?
Section 0 Object of the CEC states that “Compliance with the requirements of this Code and
proper maintenance will ensure an essentially safe installation.” However, if adequate
provision is not made for future expansion, a hazardous condition could develop.
See Codes and Standards.
Copyright © 2022 Cengage Learning Canada, Inc. 1-1
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
7. What are the general sections of the CEC?
Under General arrangement in the Preface of the CEC, it states that the general sections are
Sections 0 to 16, and 26.
8. Is the section of the CEC that deals with wiring methods a general section or an
amending section?
The section of the CEC that deals with wiring methods is a general section.
See Codes and Standards, CEC Preface.
9. When is an electrical installation required to be inspected?
ALL work is required to be inspected. See Electrical Inspection, CEC 2-004.
10. What should you look for when trying to determine if a piece of electrical equipment is
approved for use in Canada?
You should look for the CSA logo or other approval mark on the equipment. See Testing
and Accreditation.
11. If a piece of electrical equipment is not approved for use in Canada, what should you
do?
Special inspection should be obtained for a piece of electrical equipment that is not approved
for use in Canada. Rule 2-024 references Appendix B, which cautions installers that field
modifications may void the designated certification on a piece of equipment. See Testing
and Accreditation, CEC 2-024.
12. When the words “shall be” appear in a code reference, they mean that it (must) (may)
(does not have to) be done. (Underline the correct answer.)
See Codes and Standards | Some Code Terminology, CEC C11.1 in Appendix C.
13. Why is it important for standards organizations to exist?
Standards provide a framework of language, behaviour, and performance that match the
expectations of consumers. Consumers can expect quantifiable, reliable performance from
products and services that adhere to a reputable standard. In the absence of a standard, all
goods and services become subjective and thus will vary between manufacturers and
practitioners. See Testing and Accreditation.
14. Which Red Seal Skill requires you to identify sources of information relevant to
planning job tasks, specifically creating and keeping to job schedules?
Task A-3.03. See Red Seal Occupational Standard.
Copyright © 2022 Cengage Learning Canada, Inc. 1-2
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
Unit 2 - Drawings and Specifications
Review
Note: For these exercises, refer to the blueprints provided with this textbook. Also, refer to the
CEC when necessary. Where applicable, responses should be written in complete sentences.
PART 1—DRAWINGS
1. Identify three line types shown on Sheet 2.
Centre lines, border lines, hidden lines, dimension lines, visible (object) lines, break lines,
section lines, leader lines, extension lines, cutting plane lines.
See Technical Drawings | Lines.
2. Determine the length of the following lines using the indicated scales.
SCALE LENGTH
1:50 2.1 m
1:75 3.15 m
1:100 4.2 m
⅛″ = 1 ft 13 ft or in metric 3.96 m
¼″ = 1 ft 6 ft 6 in. or in metric 1.98 m
Note: Due to time of printing, the lines may vary.
See Scale.
3. What is the purpose of specifications?
Specifications supplement the plans by providing written information on materials and the
methods of construction. See Specifications.
4. In what additional way are the specifications particularly useful to the electrical
contractor?
The specifications allow the contractor to prepare an accurate cost estimate without having to
find all the data in the plans. See Specifications.
5. What is done to prevent a plan from becoming confusing because of too much detail?
Symbols are used, which refer to a table or notes. Information is supplied in the specifications.
See Symbols and Notations, Specifications.
Copyright © 2022 Cengage Learning Canada, Inc. 2-1
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
6. Name three requirements contained in the specifications regarding material (Appendix
B).
a. Shall be all new.
b. Size and types specified.
c. Carry a label from an approved testing organization. See Specification #6.
7. What are the drawings showing details of custom-made equipment called?
The drawings showing details of custom-made equipment are called shop drawings. See The
Working Drawings.
8. What phrase is used when a substitution is permitted for a specific item in a
specification?
The phrase used is “or equivalent.” See Specifications.
9. What is the purpose of an electrical symbol?
An electrical symbol represents electrical equipment and components, and can also show
size, location, and ratings. See Symbols and Notations.
10. What is a notation?
A notation is a note providing additional or more specific information. See Symbols and
Notations.
11. List five electrical notations found on the plans for the residence used as an example in
this book. Refer to the blueprints provided with this textbook.
These can be found on the package drawing sheets. Package drawing sheet 6 of 8 is as
follows:
Copyright © 2022 Cengage Learning Canada, Inc. 2-2
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
The following is found on package drawing sheet 5 of 8:
PART 2—STRUCTURAL FEATURES
1. To what scale is the basement plan drawn?
1:50. See Basement Electrical Plan.
2. What is the size of the footing for the steel support columns in the basement?
The size of the footing is 610 × 610 × 305. See Foundation/Basement Plan.
3. What kind of finish is on the wall of the front porch?
Wood siding. See Room Finish Schedule on Sheet 7, note on Cross-section A-A.
4. Give the size, spacing, and direction of the ceiling joists in the workshop.
The ceiling joists are 50 × 255 @ 305 on centre, running front to rear. See Cross-section A-
A.
5. What is the size of the lot on which this residence is located?
The size of the lot is 30 × 46 m. See Sheet 1 Site Plan.
6. In what compass direction is the front of the house facing?
The compass direction for the front of the house is south. See Sheet 1 Site Plan.
7. How far is the front garage wall from the curb?
The front garage wall is 10.67 m from the curb. See Sheet 1 Site Plan.
Copyright © 2022 Cengage Learning Canada, Inc. 2-3
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
8. How far is the side garage wall from the property lot line?
The side garage wall from the property lot line is 9.145 m = 7620 (garage to set back) + 1525
(setback measurement). See Sheet 1 Site Plan.
9. How many steel support columns are in the basement, and what size are they?
There are 5 steel support columns @ 76 mm. See Foundation/Basement Plan.
10. What is the purpose of the I-beams that rest on top of the steel support columns?
The I-beams support the floor joists.
11. What type of floor is to be in the garage?
A concrete floor is to be in the garage. See Sheet 7 Room Finish Schedule.
12. Where is access to the attic provided?
Access to the attic is provided in the garage. See First Floor Electrical Plan.
13. Give the thickness of the outer basement walls.
The thickness of the outer basement walls is 305 mm. See Cross-section A-A.
14. What material is indicated for the foundation walls?
Poured concrete is indicated for the foundation walls. See Cross-section A-A.
15. Where are the smoke/CO alarms located in the basement?
One smoke/CO alarm is in the centre of the workshop/utility room; one is at the foot of the
basement stairs. See Basement Electrical Plan.
16. What is the ceiling height in the basement workshop, from the bottom of the joists to
the floor?
The ceiling height is 3560 – 255 = 3305 mm. See Sheet 4 Cross Section A-A.
17. Give the size and type of the front door.
The front door is two doors, each 813 x 2032 × 45 mm. Decorative with light. See First Floor
Plan, then Sheet 7 Door Schedule.
Copyright © 2022 Cengage Learning Canada, Inc. 2-4
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
18. Who is to furnish the range hood?
The electrical contractor furnishes the range hood. See Specification #18.
19. Who is to install the range hood?
The electrical contractor installs the range hood. See Specification #18.
20. Which task or tasks (and subtasks) in the Red Seal Essential skills relate to the
interpretation of plans, drawings, and specifications?
Task A-3.01. See Red Seal Occupational Standard.
Copyright © 2022 Cengage Learning Canada, Inc. 2-5
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
Unit 3 - Electrical Outlets
Review
Note: Refer to the CEC or the blueprints provided with this textbook when necessary. Where
applicable, responses should be written in complete sentences.
1. What does a plan show about electrical outlets?
A plan shows in a simple manner, the location and type of outlet, switch, or special electrical
device needed. See Electrical Outlets.
2. What is an outlet?
An outlet is a point on the wiring system at which current is taken to supply utilization
equipment. See CEC Section 0 Definitions.
3. Match the following switch types with the proper symbol.
a. single-pole Sp
b. three-way S4
c. four-way S
d. single-pole with pilot light S3
See Figure 3-11.
4. The plans show curved lines running between switches and various outlets. What do
these curved lines indicate?
The curved lines indicate outlets that are controlled by the switches. See Electrical Outlets.
5. Why are the lines mentioned in Question 4 usually curved?
The lines are usually curved to distinguish them from visible lines. See Electrical Outlets.
6. a. What are junction boxes used for?
Junction boxes join two or more cables or conduits. See Junction Boxes and Switch
(Device) Boxes (Rules 12-3000 Through 12-3036).
b. Are junction boxes normally used in wiring the first floor?
No. The C.E.C., Part I requires that junction boxes be installed so that the cover openings are
accessible. Note: The requirements for accessibility would mar the appearance of the living
quarters; therefore, connections are usually made in outlet boxes. See Junction Boxes and
Switch (Device) Boxes (Rules 12-3000 Through 12-3036).
Copyright © 2022 Cengage Learning Canada, Inc.
3-1
Residential Textbook 9th Edition Ray C. Mullin
Notes
1- The file is chapter after chapter.
2- We have shown you few pages sample.
3- The file contains all Appendix and Excel sheet
if it exists.
4- We have all what you need, we make update
at every time. There are many new editions
waiting you.
5- If you think you purchased the wrong file You
can contact us at every time, we can replace it
with true one.
Our email:
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
Unit 1 - General Information for Electrical Installations
Review
Note: Where applicable, responses should be written in complete sentences.
1. What is the difference between a code and a standard?
a. Codes are standards that deal with life safety issues.
b. Standards describe minimum performance levels.
See Codes and Standards.
2. What Code sets standards for the installation of electrical equipment?
The Canadian Electrical Code, Part I sets the basic standard, with local and provincial codes
as standards that also must be considered. See Codes and Standards.
3. What authority enforces the standards set by the CEC?
The provincial or local electricity inspection authority enforces the standards set by the CEC.
See Codes and Standards.
4. Does the CEC provide minimum or maximum standards?
The CEC standards are minimum standards but are expressed in both minimum and
maximum terms; e.g., Rule 2-308 is a minimum working space of 1 m around electrical
equipment, while Rule 8-104 is a maximum circuit loading. Both of these are minimum
standards. See Codes and Standards.
5. What do the letters CSA signify?
CSA signifies Canadian Standards Association. See Testing and Accreditation | CSA
Group.
6. Does compliance with the CEC always result in an electrical installation that is
adequate, safe, and efficient? Why?
Section 0 Object of the CEC states that “Compliance with the requirements of this Code and
proper maintenance will ensure an essentially safe installation.” However, if adequate
provision is not made for future expansion, a hazardous condition could develop.
See Codes and Standards.
Copyright © 2022 Cengage Learning Canada, Inc. 1-1
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
7. What are the general sections of the CEC?
Under General arrangement in the Preface of the CEC, it states that the general sections are
Sections 0 to 16, and 26.
8. Is the section of the CEC that deals with wiring methods a general section or an
amending section?
The section of the CEC that deals with wiring methods is a general section.
See Codes and Standards, CEC Preface.
9. When is an electrical installation required to be inspected?
ALL work is required to be inspected. See Electrical Inspection, CEC 2-004.
10. What should you look for when trying to determine if a piece of electrical equipment is
approved for use in Canada?
You should look for the CSA logo or other approval mark on the equipment. See Testing
and Accreditation.
11. If a piece of electrical equipment is not approved for use in Canada, what should you
do?
Special inspection should be obtained for a piece of electrical equipment that is not approved
for use in Canada. Rule 2-024 references Appendix B, which cautions installers that field
modifications may void the designated certification on a piece of equipment. See Testing
and Accreditation, CEC 2-024.
12. When the words “shall be” appear in a code reference, they mean that it (must) (may)
(does not have to) be done. (Underline the correct answer.)
See Codes and Standards | Some Code Terminology, CEC C11.1 in Appendix C.
13. Why is it important for standards organizations to exist?
Standards provide a framework of language, behaviour, and performance that match the
expectations of consumers. Consumers can expect quantifiable, reliable performance from
products and services that adhere to a reputable standard. In the absence of a standard, all
goods and services become subjective and thus will vary between manufacturers and
practitioners. See Testing and Accreditation.
14. Which Red Seal Skill requires you to identify sources of information relevant to
planning job tasks, specifically creating and keeping to job schedules?
Task A-3.03. See Red Seal Occupational Standard.
Copyright © 2022 Cengage Learning Canada, Inc. 1-2
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
Unit 2 - Drawings and Specifications
Review
Note: For these exercises, refer to the blueprints provided with this textbook. Also, refer to the
CEC when necessary. Where applicable, responses should be written in complete sentences.
PART 1—DRAWINGS
1. Identify three line types shown on Sheet 2.
Centre lines, border lines, hidden lines, dimension lines, visible (object) lines, break lines,
section lines, leader lines, extension lines, cutting plane lines.
See Technical Drawings | Lines.
2. Determine the length of the following lines using the indicated scales.
SCALE LENGTH
1:50 2.1 m
1:75 3.15 m
1:100 4.2 m
⅛″ = 1 ft 13 ft or in metric 3.96 m
¼″ = 1 ft 6 ft 6 in. or in metric 1.98 m
Note: Due to time of printing, the lines may vary.
See Scale.
3. What is the purpose of specifications?
Specifications supplement the plans by providing written information on materials and the
methods of construction. See Specifications.
4. In what additional way are the specifications particularly useful to the electrical
contractor?
The specifications allow the contractor to prepare an accurate cost estimate without having to
find all the data in the plans. See Specifications.
5. What is done to prevent a plan from becoming confusing because of too much detail?
Symbols are used, which refer to a table or notes. Information is supplied in the specifications.
See Symbols and Notations, Specifications.
Copyright © 2022 Cengage Learning Canada, Inc. 2-1
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
6. Name three requirements contained in the specifications regarding material (Appendix
B).
a. Shall be all new.
b. Size and types specified.
c. Carry a label from an approved testing organization. See Specification #6.
7. What are the drawings showing details of custom-made equipment called?
The drawings showing details of custom-made equipment are called shop drawings. See The
Working Drawings.
8. What phrase is used when a substitution is permitted for a specific item in a
specification?
The phrase used is “or equivalent.” See Specifications.
9. What is the purpose of an electrical symbol?
An electrical symbol represents electrical equipment and components, and can also show
size, location, and ratings. See Symbols and Notations.
10. What is a notation?
A notation is a note providing additional or more specific information. See Symbols and
Notations.
11. List five electrical notations found on the plans for the residence used as an example in
this book. Refer to the blueprints provided with this textbook.
These can be found on the package drawing sheets. Package drawing sheet 6 of 8 is as
follows:
Copyright © 2022 Cengage Learning Canada, Inc. 2-2
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
The following is found on package drawing sheet 5 of 8:
PART 2—STRUCTURAL FEATURES
1. To what scale is the basement plan drawn?
1:50. See Basement Electrical Plan.
2. What is the size of the footing for the steel support columns in the basement?
The size of the footing is 610 × 610 × 305. See Foundation/Basement Plan.
3. What kind of finish is on the wall of the front porch?
Wood siding. See Room Finish Schedule on Sheet 7, note on Cross-section A-A.
4. Give the size, spacing, and direction of the ceiling joists in the workshop.
The ceiling joists are 50 × 255 @ 305 on centre, running front to rear. See Cross-section A-
A.
5. What is the size of the lot on which this residence is located?
The size of the lot is 30 × 46 m. See Sheet 1 Site Plan.
6. In what compass direction is the front of the house facing?
The compass direction for the front of the house is south. See Sheet 1 Site Plan.
7. How far is the front garage wall from the curb?
The front garage wall is 10.67 m from the curb. See Sheet 1 Site Plan.
Copyright © 2022 Cengage Learning Canada, Inc. 2-3
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
8. How far is the side garage wall from the property lot line?
The side garage wall from the property lot line is 9.145 m = 7620 (garage to set back) + 1525
(setback measurement). See Sheet 1 Site Plan.
9. How many steel support columns are in the basement, and what size are they?
There are 5 steel support columns @ 76 mm. See Foundation/Basement Plan.
10. What is the purpose of the I-beams that rest on top of the steel support columns?
The I-beams support the floor joists.
11. What type of floor is to be in the garage?
A concrete floor is to be in the garage. See Sheet 7 Room Finish Schedule.
12. Where is access to the attic provided?
Access to the attic is provided in the garage. See First Floor Electrical Plan.
13. Give the thickness of the outer basement walls.
The thickness of the outer basement walls is 305 mm. See Cross-section A-A.
14. What material is indicated for the foundation walls?
Poured concrete is indicated for the foundation walls. See Cross-section A-A.
15. Where are the smoke/CO alarms located in the basement?
One smoke/CO alarm is in the centre of the workshop/utility room; one is at the foot of the
basement stairs. See Basement Electrical Plan.
16. What is the ceiling height in the basement workshop, from the bottom of the joists to
the floor?
The ceiling height is 3560 – 255 = 3305 mm. See Sheet 4 Cross Section A-A.
17. Give the size and type of the front door.
The front door is two doors, each 813 x 2032 × 45 mm. Decorative with light. See First Floor
Plan, then Sheet 7 Door Schedule.
Copyright © 2022 Cengage Learning Canada, Inc. 2-4
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
18. Who is to furnish the range hood?
The electrical contractor furnishes the range hood. See Specification #18.
19. Who is to install the range hood?
The electrical contractor installs the range hood. See Specification #18.
20. Which task or tasks (and subtasks) in the Red Seal Essential skills relate to the
interpretation of plans, drawings, and specifications?
Task A-3.01. See Red Seal Occupational Standard.
Copyright © 2022 Cengage Learning Canada, Inc. 2-5
, Instructor’s Solutions Manual to accompany Electrical Wiring: Residential, 9Ce
Unit 3 - Electrical Outlets
Review
Note: Refer to the CEC or the blueprints provided with this textbook when necessary. Where
applicable, responses should be written in complete sentences.
1. What does a plan show about electrical outlets?
A plan shows in a simple manner, the location and type of outlet, switch, or special electrical
device needed. See Electrical Outlets.
2. What is an outlet?
An outlet is a point on the wiring system at which current is taken to supply utilization
equipment. See CEC Section 0 Definitions.
3. Match the following switch types with the proper symbol.
a. single-pole Sp
b. three-way S4
c. four-way S
d. single-pole with pilot light S3
See Figure 3-11.
4. The plans show curved lines running between switches and various outlets. What do
these curved lines indicate?
The curved lines indicate outlets that are controlled by the switches. See Electrical Outlets.
5. Why are the lines mentioned in Question 4 usually curved?
The lines are usually curved to distinguish them from visible lines. See Electrical Outlets.
6. a. What are junction boxes used for?
Junction boxes join two or more cables or conduits. See Junction Boxes and Switch
(Device) Boxes (Rules 12-3000 Through 12-3036).
b. Are junction boxes normally used in wiring the first floor?
No. The C.E.C., Part I requires that junction boxes be installed so that the cover openings are
accessible. Note: The requirements for accessibility would mar the appearance of the living
quarters; therefore, connections are usually made in outlet boxes. See Junction Boxes and
Switch (Device) Boxes (Rules 12-3000 Through 12-3036).
Copyright © 2022 Cengage Learning Canada, Inc.
3-1
