9. Light is emitted from an LED as a result of the recombining of electrons and __________
A. optic fibers
B. holes
C. decibels
D. nanometers
B
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Type USE cable used for service laterals can ___.
A. be contained in a raceway B. be locally grounded C. emerge aboveground at outside terminations D. be indirectly buried
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Solid contour lines are used on site plans to show _____
a. natural grade b. footing elevation c. finish grade d. finish floor elevation
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Which type of actuator uses an electromagnetic plunger to open and close a passage or move a linkage?
A) Transistor B) Relay C) LED D) Solenoid
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Primary auxiliary views are views that take the place of a principal view.
Answer the following statement true (T) or false (F)
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