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
Regardless of the type of motor or application, the motor bearings require yearly lubrication.
Answer the following statement true (T) or false (F)
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
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