CPG Cheat Sheet 2026

The 30 highest-yield CPG facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. The Wilson Cycle in plate tectonics describes: → The repeated opening and closing of ocean basins
2. The San Andreas Fault in California is best classified as what type of fault? → Right-lateral strike-slip fault
3. How does urbanization impact groundwater recharge? → Decreases infiltration and recharge
4. Which quality is MOST important for professionals conducting data analysis & statistical methods in Certified Professional Geologist? → Objectivity and attention to detail
5. What factor MOST affects the validity of data analysis & statistical methods outcomes in Certified Professional Geologist? → The consistency and appropriateness of assessment methods used
6. Why are detailed field notes important in geological mapping? → They record essential data for mapping
7. What does porphyritic texture in igneous rocks indicate? → Two-stage cooling
8. The principle of superposition, foundational to stratigraphy, states that: → In an undisturbed sequence of sedimentary rocks, older layers lie below younger layers
9. Which structural feature places older rocks stratigraphically above younger rocks? → A thrust fault
10. What test is commonly used to determine soil shear strength? → Direct shear test
11. Which practice BEST ensures safe instrumentation & calibration operation in Certified Professional Geologist? → Pre-use inspection combined with proper training and adherence to procedures
12. What is the FIRST step in conducting a thorough data analysis & statistical methods in Certified Professional Geologist? → Defining clear assessment criteria and objectives
13. Which process is a common cause of groundwater contamination? → Leaching of pollutants
14. What is the PRIMARY objective of specimen collection & handling within the Certified Professional Geologist profession? → To ensure quality outcomes through standardized practices and continuous improvement
15. How does structural geology aid geologic mapping? → Interprets deformation structures
16. Which element is CRITICAL for maintaining proficiency in research methodology & design within Certified Professional Geologist? → Regular practice with ongoing professional development and skill updates
17. Which competency is MOST essential for professionals working in specimen collection & handling in Certified Professional Geologist? → Critical thinking combined with practical application of knowledge
18. What is the MOST effective way to stay current with developments in specimen collection & handling for Certified Professional Geologist? → Participating in professional development, industry events, and peer collaboration
19. What is the Mohs scale used for? → Hardness ranking
20. Foliation in metamorphic rocks is primarily created by: → Directed (non-hydrostatic) stress during metamorphism
21. Geologist licensing in the United States is primarily governed by: → Individual state licensing laws, with no overarching federal statute
22. The AIPG requires CPG holders to complete how many Continuing Education Units (CEUs) per renewal cycle? → 12 CEUs per 3-year renewal cycle
23. What documentation is ESSENTIAL for instrumentation & calibration management in Certified Professional Geologist? → Maintenance logs, calibration records, and incident reports
24. Which characteristic BEST describes a successful quality assurance & control culture in Certified Professional Geologist? → Continuous learning where all team members actively seek improvement
25. In Certified Professional Geologist, what is the MOST appropriate response when a potential compliance violation is discovered? → Report it immediately through established channels and document findings
26. What is the basic building block of minerals? → Crystals
27. What is the MOST important factor in instrumentation & calibration selection for Certified Professional Geologist? → Suitability for the intended purpose and compliance with applicable standards
28. In Certified Professional Geologist, how does specimen collection & handling contribute to professional credibility? → By demonstrating competence, maintaining standards, and delivering consistent results
29. In Certified Professional Geologist, what is the PRIMARY purpose of regular instrumentation & calibration maintenance? → To ensure reliability, safety, and extend useful service life
30. What is the significance of hydrogeology? → Study of groundwater