NEC Article 240 covers which of the following?
a. Nontime-delay fuses
b. Ampere rating
c. Overcurrent protection
d. Plug fuses
c
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A 25-horsepower, three-phase induction motor has a nameplate rating of 32 amperes. The nameplate also shows a temperature rise of 30 degrees C. What is the overload size for this motor in amperes?
A. 20 amps B. 30 amps C. 40 amps D. 50 amps
Bearing misalignment within a motor can result when one or two of the mounting feet of a motor are spaced away from an uneven mounting surface and are then anchored down against the surface without proper shimming. This condition is referred to as _____.
a. soft foot b. foot torque c. base twist d. frame torque
The basic structure of a three-phase, squirrel-cage induction motor consists of a(n) ____________________, a rotor, and two end shields that house the bearings supporting the rotor shaft.
Fill in the blank(s) with the appropriate word(s).
The branch of scientific study that deals with the grouping and classification of organisms is called _____________________
Fill in the blank(s) with correct word