LA CES CEU – Dry Stone Walling, 9.8.2021 Successfully complete the following quiz to qualify for 1 LA CES continuing education credit. A passing grade requires 8 correct answers. CEU LA CES Webinar 9.8.21 Stonewalling Name(Required) First Last Email(Required) Phone(Required)1. UNESCO lists dry stone walling as an intangible cultural heritage of humanity. True False 2. Dry Stone Wall construction aid in the following: Erosion reduction Micro climate adjustments Soil retention Water retention All of the above 3. What led to the decline in dry stone fence construction practices? Increase in cheap portland cement Introduction of barbed wire Loss of knowledge All of the above 4. Dry Stone Construction methods always reduce carbon footprint. True False 5. When comparing dry stone construction methods to concrete construction methods the long term carbon footprint is reduced. True False 6. Dry stone constructed features can last thousands of years if properly constructed. True False 7. When building and assessing dry stone walls, the following stone stacking is appropriate for structural strength: a. 1 stone over 2 stones b. 1 stone over 3 stones c. Both a and b d. Neither a nor b 8. Running joints in a dry stone wall break the structural tension and ductile nature of the structure. True False 9. Dry stone wall strength is influenced by how the stones are placed. Length in or perpendicular stone placement is appropriate. True False 10. Water consumption for concrete production is of concern in arid and drought prone areas. What is the estimated percentage of industrial water used in concrete manufacturing globally? 20%-25% 9%-10% 1%-5% 15%-18% Δ
