Common drafting practice uses ____________________ lines for existing elevations and ____________________ lines for proposed elevations.
Fill in the blank(s) with the appropriate word(s).
ANSWER: continuous, dashed
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What is distance B? ________________
A 212-pound worker slips on a sloping roof, free-falling 8' before contacting the safety guardrail. How many pounds of force in foot-pounds did the worker exert on the safety guardrail?
What will be an ideal response?
The cation exchange capacities of alkaline soils are generally higher than those of acid soils (Vertisols excepted). Which of the following characteristics of alkaline soils most likely accounts for this high CEC?
A) high content of hydrous oxides of iron and aluminum B) high content of 2:1 type clays C) high exchangeable calcium D) high exchangeable sodium content E) high humus content
EGR is designed to lower which exhaust emission?
A) CO B) NOx C) HC D)