An NEC® requirement for grounding and bonding cable tray installations is _____.
a. only single conductor cable may be used in cable trays used as equipment grounding conductors
b. nonmetallic cable trays must be bonded with flexible bonding jumpers
c. steel or aluminum trays may be used as equipment grounding conductors
d. metallic cable tray does not require bonding
c. steel or aluminum trays may be used as equipment grounding conductors
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If two triangles are similar, their corresponding sides will be _________________________.
Fill in the blank(s) with the appropriate word(s).
A faulty nozzle should be _____.
a. repaired and reused b. recycled c. replaced d. reversed
What economic activity motivated the French to come to North America?
A. slave trade. B. sugar trade. C. fur trade. D. agricultural trade. E. triangle trade.
The component that turns the oil burner and blower on and off in response to external commands is the
_____. a. ignition transformer b. thermostat c. primary control d. magnetic oil flow valve