Electrical Exam Practice Guides

NEC Exam Question Guides (US)

Guide to Service Size Calculation Questions on NEC Electrical Exams

This guide explains how to tackle service size calculation questions on NEC electrical exams and in real-world applications. It covers key concepts from NEC Articles 220 and 230, teaching readers how to identify relevant loads, apply appropriate demand factors, convert VA to amperes, and determine the minimum required service size for residential and commercial electrical systems.
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Service & Distribution NEC Question Guides

Transformer Primary & Secondary Protection
Transformer Conductor Sizing
Service Size Calculations
Range Demand Calculations
Primary-Only Transformer Protection
Neutral Conductor Sizing
Heating & AC Calculations for Services
Grounding Electrode Conductors
General Lighting Load Calculations
Equipment Grounding Conductor Sizing
Appliance Load Calculations

Wiring Systems & Methods NEC Question Guides

Voltage Drop Calculation
Conduit Fill Calculation
Conductor Sizing, Insulation & Termination Temperatures
Box Fill / Sizing

Motors & Controls NEC Question Guides

Refrigerant Motor-Compressor Protection
Motor Overload Protection
Motor Overcurrent Protection
Motor Disconnecting Means

Electrical Licensing State Exam Info

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Additional Guides to Electrical State Exams

How to Pass the Wisconsin Journeyman Electrical Exam
How to Pass the Virginia Journeyman Electrical Exam
How to Pass the Minnesota Journeyman Electrical Exam
How to Pass the Michigan Journeyman Electrical Exam
How to Pass the Massachusetts Journeyman Electrical Exam
How to Pass the Maryland Journeyman Electrical Exam
How to Pass the Colorado Journeyman Electrical Exam
How to Pass the Texas Journeyman Electrical Exam

Free Electrical Exam Practice Questions

Free NEC Electrical Exam Questions #5: Calculating Conductor Size for Voltage Drop

Try your hand with a free NEC practice question. Applicable for your state's journeyman, master, or contractor exams!
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More Free NEC Exam Questions

Free NEC Electrical Exam Question #4: Minimum Demand Load for Fixed Appliances
Free NEC Electrical Exam Questions #3: Calculating Demand Load for Two Ranges Above 12 kW
Free NEC Electrical Exam Question #2: Understanding Transformer Primary Overcurrent Protection
Free NEC Electrical Exam Questions #1: Calculating Box Capacity

Red Seal Exam Question Guides (Canada)

3 More Questions on Red Seal Electrical IP Exam to Practice

This blog offers Red Seal Electrical IP exam practice questions covering key topics like Class 2 conductors, transformer bonding, and direct buried conductor sizing, complete with step-by-step walkthroughs to enhance understanding of CEC code applications. To boost exam success, download our app on iOS for access to over 1,250+ practice questions designed to sharpen your skills.
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Additional Red Seal Exam Question Guides

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Single Phase Transformers and Understanding Dual Voltage and Polarity
Red Seal IP Exam Guide to Transformers & Turns and Taps
How to Determine Temperature Limitations for Conductors and Equipment Termination
3 Common Questions on Red Seal Electrical IP Exam to Practice

Case Studies

How Dakota Prep Powers Exam Readiness at the College of Sequoias

The College of Sequoias electrical program adopted Dakota Prep to help apprentices study more effectively during work breaks, replacing traditional bulky study materials with a mobile-friendly solution. Instructors report that students using the app show improved exam performance and confidence, with apprentices particularly valuing the immediate feedback and ability to review their mistakes.
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Additional Case Studies

Dakota Prep's Role in Helping IEC El Paso's Apprentices Pass