The three major electrical defects in compressor motors that can be identified using an ohmmeter are:
A) Locked, under capacity, and unbalanced.
B) Phased, unbalanced, or blown.
C) Open, shorted, or grounded.
D) Single-phasing, dual-phasing, and three-phasing.
C
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How will the type of soil, shape of the excavation, and amount of work to be done affect the equipment selection?
What will be an ideal response?
Truck-mounted units that carry all the necessary components for on-site concrete mixing are described as _____.
a. volumetric mixers b. remote plants c. mobile batching plants d. site-based plants
Ground-fault protection that functions to open the service disconnect will afford no protection from faults on the ____ of the protective element.
A. circuit side B. panel box side C. underside D. line side
Investigating the soils of northern Canada one summer, you dig a soil pit easily though fairly uniform peat material until, at 75 cm deep, your shovel hits a layer that is frozen solid. Into which type of soil are you most likely digging?
A) Histosol B) Fibrist C) Cryent D) Cryert E) Histel