Additional Problems

Here is a list of topics which provide additional practice problems for electrician calculations.

Click on the topic you seek. You can then print each page for ease of use.

Journeyman Electrician Topics

1    Calculator Practice  +  -  ×  ÷
2    Calculator Practice  percentage
3    Calculator Practice  v  mv.  a  ma.  kW   HP  mils  feet
4    Conversion Factors   kW  kV  mils  HP
5    Conversion Factors   BTU  HPH  centimeters   inches
6    Conversion Factors   circular mils  sq. inches   sq. mils
7    Conversion Factors   sq. inches  sq. mils   circular mils
8    Electrical Consumption  kwh
9    Electrical Consumption
10  Electrical Consumption  Story Problems
11  Worksheet
12  Worksheet
13  Calculator Practice  conversion of fractions to decimals
14  Calculator Practice  +  -  ×  ÷  of fractions
15  Calculator Practice  square root of n  n  n squared
16  Calculator Practice  Pythagorean Theorem
17  Calculator Practice  area of a rectangle - circle - radius - diameter
18  Calculator Practice volume of a box
19  Calculator Practice volume of a cylinder - volume of an octagon box
20  Cross Multiplication  product sum
21   Temperature conversion
22  Ohms Watts Relationships  EIRP
23  Ohms Watts Relationships  EIRP
24  Ohms Watts Relationships  EIRP
25  Ohms Watts Relationships  EIRP
26  Ohms Watts Relationships  EIRP
27  Current and Resistance for Various Wattages
28  Ohms Watts Story Problems
29  Worksheet
30  Worksheet

Series, Parallel and Combination Circuits Table of Contents

31  Series Circuits   E I
32  Series Circuits   R P
33  Series Circuits   Diagrams  3 components
34  Series Circuits   Diagrams  4 components
35  Series Circuits   Diagrams  5 components
36  Series Circuits   Diagrams  6 components
37  Series Circuits   Diagrams  7 components
38  Series Circuits   Diagrams 10 components
39  Series Circuits   Story Problems
40  Worksheet
41  Worksheet
42  Parallel Circuits   E I
43  Parallel Circuits   R P
44  Resistance total in Parallel when all same - when only two
45  Parallel Circuit Diagrams  3 components
46  Parallel Circuit Diagrams  4 components
47  Parallel Circuit Diagrams  5 components
48  Parallel Circuit Diagrams  6 components
49  Parallel Circuit Diagrams  8 components
50  Parallel Circuit Diagrams 10 components
51  Parallel Circuits Story Problems
52  Worksheet
53  Worksheet
54  Combination Circuit Diagrams  3 components
55  Combination Circuit Diagrams  4 components
56  Combination Circuit Diagrams  5 components
57  Combination Circuit Diagrams  6 components
58  Combination Circuit Diagrams  7 components
59  Combination Circuit Diagrams  8 components
60  Combination Circuit Diagrams  9 components
61  Combination Circuit Diagrams 10 components
62  Combination Circuit Diagrams 10 components

Box Fill, Junction Box Sizing, Conduit Fill and Nipple Fill Table of Contents

63  Box Sizing
64  Junction Box Sizing
65  Box Fill-NM cable
66  Box Fill Story Problems
67  Box Fill Story Problems
68  Box Fill Story Problems
69  Box Fill Story Problems
70  Pull Boxes-Straight Pulls-Angle Pulls
71  Pull Boxes-U Pulls  Back-of-the-Box Pulls
72  Pull Boxes-Multiple Entries
73  Pull Boxes-Multiple Entries
74  Pull Boxes-Multiple Entries
75  Pull Boxes-Multiple Entries
76  Gutter Sizing
77  Conduit Fill-Maximum Number of Conductors Permitted
78  Conduit Fill-Look Ups
79  Conduit Fill-Table based on 2005 NEC® - 40%
80  Conduit Fill-Calculation Worksheet
81  Conduit Fill-Calculation Worksheet
82  Conduit Fill-Calculation Worksheet
83  Conduit Fill-Various Raceway Types
84  Conduit Fill-Story Problems
85  Conduit Fill-Story Problems
86  Surface Metal Raceway-Wiremold®
87  Nipple Fill-Table based on 2005 NEC® - 60%
88  Nipple Fill-Various Raceway Types
89  Nipple Fill-Look Ups
90  Nipple Fill-Story Problems
91  Nipple Fill-Story Problems
92  Conduit and Nipple Fill-Percentage Practice

Ampacity Correction and Voltage Drop Table of Contents

93  Ampacity Look Ups
94  Ampacity Correction-Ambient Temperature Correction Factor
95  Ampacity Correction-Conduit Fill Correction Factor
96  Ampacity Correction-Continuous Load Correction Factor
97  Ampacity Correction-All Three Factors
98  Ampacity Correction-Find Conductor When Load is Given
99  Ampacity Correction-Story Problems
100  Worksheet
101  Worksheet
102  Bus Bar Ampacity
103  Resistance of Small Conductors
104  Conductor Resistance
105  Resistance Change with Temperature Change
106  Combination Load-Ampacity Determination
107  Maximum Unbalanced Load-Single Phase
108  Amperage Clamp-on Meter
109  Ampacity and Resistance-Story Problems
110  Ampacity and Resistance-Story Problems
111  Ampacity and Resistance-Story Problems
112  Voltage Drop-Constants
113  Voltage Drop-Calculations
114  Voltage Drop-Calculations
115  Voltage Drop-Calculations
116  Voltage Drop-Percentages
117  Voltage Drop-Chart
118  Voltage Drop-Story Problems
119  Worksheet
120  Worksheet
121  Voltage Drop-Line Diagrams
122  Voltage Drop-Line Diagrams

Single Phase Transformers and Motors Table of Contents

123  Transformers  Ep  Es  Np  Ns
124  Transformers  Ep  Es   Ip   Is  Np    Ns   eff
125  Transformers  Ip   Is   Np  Ns eff
126  Transformers  Ep  Es  Np  Ns ratio
127  Transformers  Ep  Es   Ip   Is  Pp  Ps    eff
128  Transformers  Ep  Es   Ip   Is  Pp  Ps   Np  Ns   eff   step
129  Transformers  Ep  Es   Ip   Is  Pp  Ps   Np  Ns   eff   step
130  Transformer Proportionalities  T-F
131  Transformer Story Problems
132  Worksheet
133  Worksheet
134  Transformer Story Problems
135  Worksheet
136  Worksheet
137  Transformer Story Problems
138  Worksheet
139  Worksheet
140  Motor Full Load Current-Disconnect Size
141  Motor Full Load Current-Interpolation
142  Motors-Conductor Sizing
143  Motor Branch Circuit Protective Devices
144  Motor Overloads
145  Motor Overcurrent Protection
146  Motor Feeders-Feeder Protection
147  Motor Feeder Overcurrent Protection
148  Motor Efficiency-Generator Efficiency
149   Motor Volt Amperes
150  Motor Power
151  Motor Calculations-Story Problems
152  Motor Calculations-Story Problems

 Residential Single Family Service Calculations Table of Contents

153  Residential Lighting Loads  -  Circuits
154  Residential Service Calculations  -  Net Lighting and Appliance Demand
155  Residential Service Aspects  -  Standard Calculation
156  VA Motors in Service Calculations
157  Non-Coincident Load  Heat and AC
158  Fixed Appliance Service Demand  -  Four or More
159  Range Feeder Demand  -  Column A B C
160  Range Feeder Demand  -  Note 1
161  Range Feeder Demand  -  Note 2
162  Range Feeder Demand  -  Weird Combination
163  Household Cooking Appliances  -  Story Problems
164  Household Cooking Appliances  -  Story Problems
165  Household Cooking Appliances  -  Story Problems
166  Household Cooking Appliances  -  Story Problems
167  Complete Service Calculations  -  Residential Standard
168  Branch Circuit Conductors  -  Household Cooking Appliances
169  Branch Circuit Conductors  -  Dryers, Water heaters
170  Branch Circuit Conductors  -  Heat and AC
171  Residential Electric Service Calculations  -  Worksheet
172  Residential Service Calculations  -  Standard
173  Residential Service Calculations  -  Standard
174  Residential Service Calculations  -  Standard
175  Residential Service Calculations  -  Standard
176  Residential Service Calculations  -  Optional
177  Residential Service Calculations  -  Optional
178  Residential Service Calculations  -  Optional
179  Residential Service Calculations  -  Optional
180  Residential Electric Service Components
181  Residential Electric Service Components
    

Helpful stuff:

Master Electrician Topics

1  Trigonometry  sin   cos   tan
2  Trigonometry  Power Factor
3  Trigonometry  Right Triangle Solutions
4  Alternating Current Circuit Calculations  R  Xl  Z  sin   cos  tan
5  Alternating Current Circuit Calculations  E  I  R  Z  P   eff  angle in degrees  pf
6  Alternating Current Circuit Calculations  Story Problems
7  Worksheet
8  Worksheet
9  Alternating Current Circuit Calculations  E  I  R  Xl  Z   angle in degrees   sin  cos  tan
10  Alternating Current Circuit Calculations  Power 1 Phase
11  Alternating Current Circuit Calculations  Power 3 Phase
12  Alternating Current Circuit Calculations  Horsepower 1 Phase
13  Alternating Current Circuit Calculations  Horsepower 3 Phase
14  Alternating Current Circuit Calculations  Reactive Power  1 Phase
15  Alternating Current Circuit Calculations  Reactive Power  3 Phase
16  Alternating Current Circuit Calculations  Story Problems
17  Worksheet
18  Worksheet
19  Alternating Current Circuit Calculations  Story Problems  3 Phase
20  Worksheet
21  Worksheet
22  Alternating Current Circuit Calculations  Story Problems  3 Phase
23  Worksheet
24  Worksheet
25  Inductance in Series
26  Inductance in Parallel
27  Inductance Story Problems
28  Capacitance in Series
29  Capacitance in Parallel
30  Capacitance Story Problems 

NEC® Code Calculations

31  Vd Constants
32  Vd Percentages
33  Vd Feeders Branch Circuits
34  Combination Loads  -  Feeder Amps  -  Branch Circuit Amps
35  General Lighting Loads
36  Receptacle Loads  -  Receptacle Demand
37  Lighting Load Feeder Demand
38  Dryer Residential Demand
39  Kitchen Appliances  -  Commercial Demand
40  Feeder Neutral
41  Grounding Electrode Conductor for Paralleled Service
42  Equipment Grounding Conductor Due to Voltage Drop
43  Ampacity Correction  -  Ambient Temperature Correction
44  Conductors in Free Air  -  Ambient Temperature Correction
45  Conductors in Free Air  -  Ambient Temperature Correction
46  Vd Chart #10
47  Vd Chart #8
48  Vd Chart #6
49  Vd Chart #4
50  Vd with Multiple Legs
51  Metal Wireways
52  AC Refrigerator Equipment
53  Transformer Calculations
54  Capacitors
55  Cranes and Hoists
56  Individual Welders
57  Groups of Welders
58  Resistance per 1000 Feet Copper
59  Resistance per 1000 Feet Aluminum
60  Resistance and Reactance Uncoated Copper

Three Phase Motor and Transformer Calculations

61  AC Circuit Calculations  -  Power 3 Phase
62  AC Circuit Calculations  -  HP 3 Phase
63  AC Circuit Calculations  -  Reactive Power 3 Phase
64  AC Circuit Calculations  -  Motors 3 Phase
65  AC Circuit Calculations  -  kW kVA 3 Phase
66  AC Circuit Calculations  -  Story Problems
67  Worksheet
68  Worksheet
69  Motor Full Load Current 3 Phase
70  Motor Full Load Current 3 Phase  -  synchronous type
71  Motor Full Load Current  3 Phase  -  Interpolation
72  Motor Conductor Sizing 3 Phase
73  Motor Overcurrent Protection 3 Phase
74  Motor Overloads 3 Phase
75  Motor Feeder Overcurrent Protection 3 Phase
76  Motor Torque at HP and RPM 1 Phase 3Phase
77  Vd 3 Phase
78  Vd 3 Phase
79  Vd 3 Phase
80  Vd  -  Story Problems
81  Worksheet
82  Worksheet
83  Vd Chart 3 Phase
84  Transformers  -  Story Problems 3 Phase
85  Worksheet
86  Worksheet
87  Transformers  -  Delta Delta 3 Phase
88  Transformers  -  Delta Wye 3 Phase
89  Transformers  -  Wye Wye 3 Phase
90  Transformers  -  Wye Delta 3 Phase  

Multifamily Residential Service Calculations

91  Service Calculations  -  Standard Mobile Home
92  Service Calculations  -  Optional Mobile Home
93  Service Calculations  -  Mobile Home Park
94  Service Calculations  -  Standard Duplex
95  Service Calculations  -  Optional  Duplex
96  Service Calculations  -  Duplex Dwelling Units
97  Service Calculations  -  Standard Triplex
98  Service Calculations  -  Optional Triplex
99 Service Calculations  -   Triplex Dwelling Units
100  Service Calculations  -  Standard Quadruplex
101  Service Calculations  -  Optional Quadruplex
102  Service Calculations  -  Quadruplex Dwelling Units
103  Service Calculations  -  Standard Multi- Family
104  Service Calculations  -  Optional Multi-Family
105  Service Calculations  -  Multi-Family Dwelling
106  Service Calculations  -  Multi-Family Dwelling
107  Service Calculations  -  Multi-Family Dwelling
108  Service Calculations  -  Motel
109  Service Calculations  -  Motel
110  Service Calculations  -  Hotel
111  Service Calculations  -  Hotel
112  Service Calculations  -  Assisted Living Facility
113  Service Calculations  -  Assisted Living Facility
114  Three Phase Feeders  -  Household Cooking Loads
115  Range Feeder Demand Note 1
116  Range Feeder Demand Note 2
117  Three Phase Feeder  -  Household Cooking Story Problems
118  Service Calculations  - Recreational Vehicle Park
119  Recreational Vehicle Park  -  Minimum Number of Receptacles
120  Service Calculations  -  RV Park 

Commercial Service Calculations

121  Commercial Service Calculations  -  Barber Shop
122  Commercial Service Calculations  -  Beauty Parlor
123  Commercial Service Calculations  -  Store Building
124  Commercial Service Calculations  -  Store Building
125  Commercial Service Calculations  -  New Restaurant Standard
126  Commercial Service Calculations  -  New Restaurant Optional
127  Commercial Service Calculations  -  Laundromat
128  Commercial Service Calculations  -  Office Building
129  Commercial Service Calculations  -  Bank
130  Commercial Service Calculations  -  School Portable Classroom
131  Commercial Service Calculations  -  School Service Standard
132  Commercial Service Calculations  -  School With Optional Method
133  Commercial Service Calculations  -  School Service Optional
134  Commercial Service Calculations  -  Recycling Center
135  Commercial Service Calculations  -  Convenience Store
136  Commercial Service Calculations  -  Gas Station/Garage
137  Commercial Service Calculations  -  Warehouse
138  Commercial Service Calculations  -  Sanitary Lift Station
139  Commercial Service Calculations  -  Church
140  Commercial Service Calculations  -  Courthouse
141  Commercial Service Calculations  -  Bridge
142  Commercial Service Calculations  -  Car Wash
143  Commercial Service Calculations  -  Marina
144  Commercial Service Calculations  -  Restaurant
145  Commercial Service Calculations  -  Recreation Center
146  Commercial Service Calculations  -  Supermarket
147  Commercial Service Calculations  -  Department Store
148  Commercial Service Calculations  -  Hospital
149  Commercial Service Calculations  -  Manufacturing Plant
150  Commercial Service Calculations  -  Waste Water Treatment Plant          

Motor Control Ladder Diagrams

Motor Control
151  Description of Operation
152  Description of Operation
153  Draw Ladder Diagram 2-3-Wire Control
154  Push Button Terminal Identification
155  Push Button Terminal Identification
156  Description of Operation
157  Description of Operation
158  Draw Ladder Diagram 4 Motors F+R
159  Description of Operation
160  Description of Operation
161  Description of Operation
162  Draw Ladder Diagram Control Transformers Fuses
163  Description of Operation
164  Description of Operation
165  Description of Operation
166  Draw Ladder Diagram Conveyor Belt-Railroad Crossing
167  Description of Operation
168  Description of Operation
169  Description of Operation
170  Draw Ladder Diagram Garage Door Opener
171 Components  
172 Components  
173 Components  
174 Components  
175 Components  
176 Components  
177 Components  
178 Components  
179 Components  
180 Components  

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Many electrician workbooks and practice exams are now available 
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The next Journeyman Electrician Course in Port St. Lucie begins September 12th, 2009. Details HERE.
The next Master Electrician Course in Port St. Lucie begins January 9th, 2010. Details HERE.
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