What is the primary cause of harmful tailpipe emissions?
A. Low quality fuel.
B. Low ignition temperatures.
C. Nitrogen enriched fuel.
D. Imperfect combustion.
Answer: D
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The Founding Fathers failed to eliminate slavery because
A. they did not truly believe in democracy. B. a fight over slavery might destroy national unity. C. they were more concerned with securing equality for women. D. the North, as its industry expanded, began to rely more heavily on slave labor. E. economic conditions would not allow such a loss.
Conduit systems in volatile envirnoments must be _____.
a. sealed b. bent c. left uncovered d. galvanized
The most common examples of a large scale showing the necessary details can be found on ____ installation drawings.
A. cabinet B. door C. window D. plumbing
When a cutting plane extends completely through an object, usually along a centerline, ____.
A. the cutting plane line is marked with an identifying letter B. a full section is shown C. the cutting plane arrows show the direction of sight D. both b and c E. all of the above