Compared to single phase motors, three phase motors are:
A) More complicated and use more electricity.
B) More common in small, fractional horsepower applications.
C) Stronger starting with a higher operating efficiency.
D) More versatile because they can be operated on either single phase or three phase power.
C
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Describe the construction and operation of a vacuum circuit breaker.
What will be an ideal response?
?Which method is used to make thin-wall hollow products?
A. ?snap-back forming B. ?free forming C. ?mechanical forming D. ?twin sheet thermoforming
The movable part of the relay is the:
A) electromagnetic coil. B) magnetic field. C) the armature. D) all of these.
There are currently 296 levels active on a CAD project. If this number is reduced by half and then by half once more, how many levels are now active?
What will be an ideal response?