CDT Study Guide 2026
Everything you need to pass the CDT exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CDT Exam Format at a Glance
📚 CDT Topics to Study (69)
✍️ Sample CDT Questions & Answers
1. What is the first step in the risk management process?
Systematic risk identification is the foundational first step, as risks cannot be managed or mitigated until they are identified and understood.
2. Which GD&T symbol is used to control the straightness of a surface or axis?
Straightness is the GD&T symbol that controls how straight a surface line element or axis must be.
3. Which view in a mechanical assembly drawing shows internal features by imagining a cutting plane through the part?
A section view reveals internal features by showing a cross-section of the part as if it were cut by an imaginary plane.
4. Which NFPA standard governs the installation of sprinkler systems in commercial occupancies?
NFPA 13 is the Standard for the Installation of Sprinkler Systems, covering commercial and industrial occupancies.
5. In drafting door schedules, the notation 'HM' for a door type typically stands for what material?
HM in door schedules stands for Hollow Metal, referring to steel-faced doors commonly used in commercial construction for fire-rated and high-traffic openings.
6. What is the standard US paper size used for large-format engineering drawings?
D-size (22 × 34 inches) is a standard ANSI large-format engineering drawing sheet commonly used for detailed structural and mechanical drawings.