Fires that involve ordinary materials such as paper, cardboard, and wood are classified as Type __________ fires.
A. A
B. B
C. C
D. D
Answer: A
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Over time, hydroponics has become a less important mode of producing vegetables and other high-income plants
Indicate whether the statement is true or false.What plant should be pruned with hand pruners?
A) Yew B) Pine C) Boxwood D) Aucuba
The testicles of a breeding bull should be pointed and close to the body
Indicate whether the statement is true or false
What advantage is there to maintaining a negative pressure on the heat exchanger?
A) The negative pressure helps draw in return air from the house, increasing efficiency. B) Combustion air can only be drawn into the oil burner if a negative pressure is maintained. C) The vent will not work unless the heat exchanger is at a negative pressure. D) Safety; it ensures combustion products do not leak out into the air stream.