- Exam Snapshot: Format, Fee, and Equipment
- The Five BEE-D Domains at a Glance
- Domain 1: Numbering Systems and Conversions
- Domain 2: Block Diagrams, Schematics, and Wiring Diagrams
- Domain 3: Test Equipment and Measurements
- Domain 4: Safety Precautions
- Domain 5: Theory of Digital Logic Functions and Circuitry
- Eligibility Routes and Fee Math
- Renewal Options Compared
- Final-Week Review Timeline
- FAQ
- BEE-D is a proctored, in-person performance assessment run through SPI's Examination Management System - not a multiple-choice-only exam.
- Passing score is 70%, and the exam fee is USD 100 per certification.
- Bring-your-hands skills matter: logic-probe reads, truth tables, gate fault isolation, 555 timers, and D-type/JK flip-flop troubleshooting are core practical...
- Certification is valid for 3 years, with three distinct renewal paths at three different price points.
Exam Snapshot: Format, Fee, and Equipment
Before you memorize a single truth table, get the logistics straight. BEE-D - Basic Electricity and Electronics, Digital - is administered by CertTEC, a division of SpaceTEC Partners, Inc. It is delivered as a proctored, in-person performance assessment through SPI's online Examination Management System, per the SPI catalog revised March 1, 2025. That means you're not just filling in bubbles; you're physically working with hardware while an evaluator scores your performance.
The exam fee is USD 100 per certification, and the passing score is 70%. On test day, expect to work with:
- Two CertTEC assessment circuit cards per discipline
- A Nida 130E or later trainer
- A multimeter
- A function generator
- An oscilloscope
If any of this hardware is unfamiliar, spend time with it before test day - this is not a bank of definitions to memorize but a set of instruments you must actually operate under time pressure. For a deeper walkthrough of what to expect logistically, see the BEE-D Study Guide 2026, and for the exact scoring threshold breakdown, check BEE-D Passing Score 2026.
The Five BEE-D Domains at a Glance
CertTEC's published Digital competency topics organize the exam into five domains. Use this table as your master checklist before diving into details.
| Domain | Core Focus |
|---|---|
| 1. Numbering Systems and Conversions | Binary, decimal, hex, octal conversions and arithmetic |
| 2. Block Diagrams - Schematics-Wiring Diagrams | Reading and tracing signal flow across diagram types |
| 3. Test Equipment and Measurements | Multimeter, function generator, oscilloscope, logic probe use |
| 4. Safety Precautions | Bench safety, ESD, equipment handling protocols |
| 5. Theory of Digital Logic Functions and Circuitry | Gates, truth tables, flip-flops, timers, fault isolation |
For a domain-by-domain walkthrough with more depth than a cheat sheet allows, read the BEE-D Exam Domains 2026 guide.
Domain 1: Numbering Systems and Conversions
Numbering Systems and Conversions
This domain tests whether you can move fluently between the number systems that digital circuits actually use.
- Convert cleanly between binary, decimal, hexadecimal, and octal
- Perform binary addition and subtraction without a calculator
- Recognize powers of 2 instantly (helps with truth-table sizing later)
- Understand how nibble/byte groupings map to hex shorthand
Speed matters here because conversion errors compound into wrong answers on later, more complex logic questions. Practice until binary-to-hex is automatic rather than something you calculate step by step.
Domain 2: Block Diagrams, Schematics, and Wiring Diagrams
Block Diagrams - Schematics-Wiring Diagrams
You'll need to read three related but distinct diagram styles and trace signal or power flow through each.
- Interpret block diagrams to understand functional relationships between stages
- Trace a schematic to identify component placement and signal paths
- Follow wiring diagrams to connect physical terminals correctly on the trainer
- Cross-reference schematic symbols against the actual CertTEC assessment circuit card
This is where the Nida 130E trainer becomes relevant - you're not just reading a diagram on paper, you're expected to translate it onto physical hardware during the performance assessment.
Domain 3: Test Equipment and Measurements
Test Equipment and Measurements
This domain is the direct link between the theory you study and the equipment listed in your exam kit.
- Set up and read a multimeter for voltage, resistance, and continuity checks
- Configure a function generator to produce required waveforms
- Use an oscilloscope to capture and interpret digital signal timing
- Take accurate logic-probe measurements to confirm high/low states
Key Takeaway
Logic-probe measurements are called out specifically as a practical focus area - practice reading high, low, and pulsing states on an actual probe, not just in a textbook diagram.
Domain 4: Safety Precautions
Safety Precautions
Safety questions and bench behavior are evaluated alongside technical skill during the performance assessment.
- Proper handling of test equipment to avoid damage or injury
- ESD-aware handling of circuit cards and components
- Correct power-up and power-down sequencing on the trainer
- General bench hygiene expected in a proctored lab setting
Don't treat this domain as an afterthought. Because the exam is performance-based, an evaluator watching you skip a safety step can cost you points even if your technical answer is correct.
Domain 5: Theory of Digital Logic Functions and Circuitry
Theory of Digital Logic Functions and Circuitry
This is the heaviest content domain and the one most tied to the exam's named practical focus areas.
- Build and interpret truth tables for AND, OR, NAND, NOR, XOR, and XNOR gates
- Perform logic-gate fault isolation on a live circuit card
- Understand 555 timer configurations (astable and monostable behavior)
- Troubleshoot D-type and JK flip-flops, including clocking and state transitions
If you only have time to deep-dive one domain, make it this one - fault isolation and flip-flop troubleshooting are explicitly named as practical focus areas, which strongly signals where hands-on evaluation time will be spent. For a broader sense of how tough this domain makes the overall exam, see How Hard Is the BEE-D Exam?
Eligibility Routes and Fee Math
CertTEC offers multiple paths into the exam room, which is worth knowing before you assume you're not "qualified enough" to sit for BEE-D.
- Relevant training or documented work experience
- A relevant military rating or assignment
- Graduation from a relevant college or technical-school program
Whichever route applies to you, the exam fee is a flat USD 100 per certification. There's no tiered pricing structure to navigate - one fee, one passing score, one performance assessment. For the full breakdown of what that fee does and doesn't include, see BEE-D Certification Cost 2026, and for a detailed look at each eligibility pathway, read BEE-D Requirements 2026.
Renewal Options Compared
BEE-D certification is valid for 3 years. When it's time to renew, you have three distinct options, each with its own fee structure:
| Renewal Path | Requirement | Fee |
|---|---|---|
| Work Verification | Verified relevant employment in 12 of the preceding 36 months | USD 10 (emailed certificate) or USD 25 (mailed hard copy/ID card) |
| Alternate Recertification Credits | At least 18 credits earned within the certification period | USD 15 |
| Equivalent Knowledge Exam | Pass a knowledge-based renewal exam | USD 50 |
Notice the fee scales with effort avoided: verifying you stayed employed in the field is cheapest, retaking a knowledge exam is priciest. Plan which route fits your career trajectory well before your 3-year clock runs out.
Final-Week Review Timeline
If you're days away from your scheduled performance assessment, sequence your remaining hours around where the exam concentrates its practical weight rather than spreading effort evenly.
Numbering Systems + Block Diagrams
- Drill binary/hex/octal conversions until they're automatic
- Trace three different schematic-to-wiring-diagram pairs
Test Equipment Hands-On
- Practice logic-probe reads on a live circuit card
- Run through multimeter, function generator, and oscilloscope setups
Digital Logic Theory + Fault Isolation
- Rebuild truth tables from memory for every basic gate
- Practice 555 timer and D-type/JK flip-flop troubleshooting scenarios
Safety Review + Full Dry Run
- Rehearse safety and power-sequencing steps until they're second nature
- Run a full mock performance assessment using all five equipment types
This sequencing isn't generic time management - it's built around the fact that Domain 5's practical focus areas (fault isolation, 555 timers, flip-flop troubleshooting) demand the most bench repetition, while Domain 4's safety habits need to be automatic by the time you're being evaluated.
FAQ
BEE-D is delivered as a proctored, in-person performance assessment through SPI's online Examination Management System, meaning you work directly with equipment like a multimeter, oscilloscope, function generator, and a Nida 130E or later trainer rather than answering only written questions.
The passing score is 70%. See BEE-D Passing Score 2026 for more context on how that threshold applies across the performance assessment.
The exam fee is USD 100 per certification. Renewal fees are separate and range from USD 10 to USD 50 depending on which renewal path you choose.
Certification is valid for 3 years. You can renew through verified work experience, Alternate Recertification Credits, or an equivalent knowledge exam.
Domain 5, Theory of Digital Logic Functions and Circuitry, carries the exam's named practical focus areas - logic-gate fault isolation, 555 timers, and D-type/JK flip-flop troubleshooting - making it the highest-value domain for hands-on review.
Keep this page bookmarked as your quick-reference sheet, but don't stop here. Pair it with focused practice questions on our BEE-D practice test platform to turn these facts into exam-day reflexes, and browse the related guides on BEE-D Jobs and Is the BEE-D Certification Worth It? to see how this credential fits into your broader career plan.