An ampacity adjustment of conductors in cable tray is more likely to be required when installing _____.
a. single-conductor cable
b. conductors in ventilated tray
c. 600V systems
d. multiconductor cable
d. multiconductor cable
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In the accompanying figure, what is the measure of angle J?
A. 65o B. 70o C. 77o D. 87o
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Regardless of the type of motor or application, the motor bearings require yearly lubrication.
Answer the following statement true (T) or false (F)
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Which of these technologies is NOT used in 80% furnaces?
A) Flattening and serpentining heat exchangers B) adding induced draft combustion blowers C) Removing standing pilot lights D) adding a condensing recuperative coil
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Concrete for some strip footings may be placed in trenches without the use of forms if the soil is _____
a. sandy b. very cohesive c. very moist d. compacted
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