16. A contingency can be: A. Added to the base cost estimate B. Added or deducted from the base cost estimate C. It depends on the project 17. In which project development phase, the cost estimate accuracy is the highest: A. Planning and programming B. Preliminary engineering C. Design D. Letting 18. In which project development phase, the contingency is the lowest: A. Planning and programming B. Preliminary engineering C. Design D. Letting 19. The objective of cost estimate is to be: A. Transparent, constant, and accurate B. Transparent, precise, and accurate C. Accurate, precise, and consistent D. Consistent, accurate, and transparent E. Accurate, consistent, and precise F. Transparent, consistent, precise 20. Accuracy and precision can be defined as follows: A. Precision is closeness of individual measurements to the right value and accuracy is closeness of individual measurements to each other B. Precision is closeness of individual measurements to the any value and accuracy is closeness of individual measurements to right value C. Accuracy is closeness of individual measurements to the any value and precision is closeness of individual measurements to that value D. Accuracy is closeness of individual measurements to the right value and precision is closeness of individual measurements to that value E. Accuracy is closeness of individual measurements to the right value and precision is closeness of individual measurements to each other