What is the purpose of the zinc rod used in steel boilers?
A) It acts as a flame safety device
B) It prevents corrosion by reacting with corrosive elements before they attack the boiler
C) It acts as an electrical ground for safety purposes
D) It cycles the burner by sensing the water temperature
B
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Requirements for waste reduction should be included in the __________________.
Fill in the blank(s) with the appropriate word(s).
If two triangles are similar, their corresponding sides will be _________________________.
Fill in the blank(s) with the appropriate word(s).
A conductor is a material that has ________
A) many free electrons B) a positive charge C) few free electrons D) a structure similar to semiconductors
Does creative thinking come easily to most people? Why or why not?
What will be an ideal response?