AVIXA Math Practice: Questions & Tests [Updated Oct. 2026]

October 2026 Update

Course Update – Expanded CTS Math Practice Structure

This course has been substantially expanded and reorganized to provide a more progressive approach to AV math practice.

The course now includes six dedicated practice tests with 150 questions, moving from foundational calculations into applied CTS-level problem solving and specialist CTS-I and CTS-D math practice.

The six practice tests are:

• CTS Math Foundations: Core AV Calculations

• CTS Audio & Electrical Math

• CTS Video, Display & Light Math

• CTS Math Applied Calculations

• CTS-I Installation Math: Advanced Practice

• CTS-D Design Math: Advanced Practice

Questions include detailed explanations that break down the formulas, calculations, reasoning, and common mistakes behind each answer.

Topics include electrical power, current, voltage, impedance, loudspeaker loading, SPL, decibel calculations, projection, aspect ratio, throw ratio, contrast, lighting, inverse-square relationships, digital audio bandwidth, installation calculations, and design-oriented AV math.

Additional CTS practice tests, study tools, and AV certification resources are available at:

creativesolutions. training

Master AV Math for the CTS Exam with Confidence

AV math can be one of the most challenging parts of CTS exam preparation.

This course is designed to help AV professionals, technicians, installers, designers, and aspiring CTS candidates develop the calculation skills needed to approach AV math questions with greater confidence.

Rather than simply memorizing formulas, the practice tests progressively teach you how to:

• Identify which formula applies

• Extract the correct values from a scenario

• Perform the calculation accurately

• Check whether the result makes sense

• Interpret the calculated result in an AV context

The course begins with foundational calculations and gradually progresses into more applied scenarios where you must determine which relationship to use before solving the problem.

What You Will Practice

You will work with calculations involving:

• Ohm’s Law

• Electrical power, voltage, and current

• Loudspeaker impedance

• Series and parallel speaker loads

• Equipment heat load

• Sound pressure level

• Decibel relationships

• Distance-related SPL changes

• Screen dimensions

• Aspect ratios

• Display diagonals

• Projector throw distance

• Throw ratio

• Contrast ratio

• Lux and foot-candles

• Inverse Square Law

• Resolution and bandwidth concepts

• Digital audio bit rate and throughput

• Applied installation calculations

• Applied design calculations

• Metric and imperial unit conversions

Six Progressive Practice Tests

Practice Test 1 – CTS Math Foundations: Core AV Calculations

Start with the essential formulas and relationships used throughout AV systems.

This section emphasizes straightforward calculations and helps establish the mathematical foundation needed for the more advanced tests.

Practice Test 2 – CTS Audio & Electrical Math

Focus on calculations involving electrical and audio systems, including:

• Voltage

• Current

• Power

• Impedance

• Loudspeaker loads

• SPL

• Decibels

• Heat load

• Signal relationships

Practice Test 3 – CTS Video, Display & Light Math

Develop calculation skills involving visual systems, including:

• Aspect ratio

• Screen dimensions

• Diagonal calculations

• Throw ratio

• Projection distance

• Contrast

• Illuminance

• Lux

• Foot-candles

• Inverse-square relationships

• Video and data calculations

Practice Test 4 – CTS Math Applied Calculations

This mixed practice test removes the topic-based structure and requires you to determine which mathematical relationship applies.

Questions may require:

• Formula selection

• Multi-step calculations

• Unit conversion

• Comparison of possible solutions

• Interpretation of calculated results

This test is designed to move beyond formula recall and toward applied CTS-level problem solving.

Practice Test 5 – CTS-I Installation Math: Advanced Practice

Practice installation-oriented calculations involving field conditions and system implementation.

Topics may include:

• Cable-related calculations

• Voltage drop

• Equipment loading

• Rack considerations

• Signal delay

• Distance calculations

• Field measurements

• Installation verification

This section provides additional practice for technicians interested in CTS-I-level calculation scenarios.

Practice Test 6 – CTS-D Design Math: Advanced Practice

Practice design-oriented calculations that require you to evaluate system requirements and calculated results.

Topics may include:

• System sizing

• Electrical loading

• Projection planning

• Display calculations

• Signal relationships

• Bandwidth

• SPL

• Design constraints

• Calculated design decisions

This section provides additional practice for students interested in CTS-D-level design calculations.

Detailed Explanations

Each question includes an explanation designed to reinforce both the calculation and the reasoning behind it.

Depending on the question, explanations may include:

• Formula or concept

• Plain-language explanation

• Step-by-step calculation

• Sanity check

• Practical technician or designer context

• Key takeaways

• Exam tips

• Common mistakes

The objective is not simply to show the correct number.

The goal is to help you understand why the calculation works and how to recognize when to use it.

Why Take This Course?

Focused AV Math Practice
Concentrate specifically on the quantitative concepts used throughout AV systems.

Progressive Difficulty
Begin with foundational calculations before progressing into mixed and multi-step scenarios.

Realistic AV Context
Practice calculations using situations involving audio, video, projection, lighting, electrical systems, installation, and design.

Formula Selection Practice
Develop the ability to determine which formula applies rather than relying only on memorization.

Detailed Answer Explanations
Review the reasoning, calculations, shortcuts, and common errors behind each problem.

Whether you are preparing for the CTS exam, strengthening your AV calculation skills, or progressing toward CTS-I or CTS-D certification, this course provides structured practice across the major areas of AV math.

Earn PDUs Toward PMP Renewal

This course qualifies for 4.0 PDUs that can be used toward maintaining PMP, PgMP, or other applicable PMI credentials.

Recommended PDU Breakdown:

• Technical: 3.5 PDUs

• Leadership: 0.5 PDUs

• Strategic & Business: 0 PDUs

To report your PDUs, log in to the PMI CCRS platform and select Course or Training. A certificate of completion can be retained for audit purposes.