Siempre se debe conectar una herramienta eléctrica en _____.
a. un tomacorrientes de pared
b. un cable de extensión
c. varios tomacorrientes
d. un GFCI
d. un GFCI
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The ________ is the attachment between the ovule and the ovary.
A) integument B) funiculus C) micropyle D) tube nucleus
In three-phase motors, a rotation would quickly become evident as each set of poles created their magnetic fields ____ degrees out of phase with each other.
a. 90 b. 120 c. 135 d. 180
The ____________________ (dynamic, static) characteristics of a servomechanism relate to its steady-state behavior, and the ____________________ (dynamic, static) characteristics relate to the system when it is moving.
Fill in the blank(s) with the appropriate word(s).
What makes the main valve in the reversing valve shift from one side to the other?
A) A solenoid coil creates a magnetic field that pulls the valve to one end and repels it to the other. B) A small gear motor that is operated on 24 V engages gears on the back of the valve core. C) An electronic stepper motor mounted on one end of the reversing valve D) Pressure difference from one side of the valve to the other