Motors
AC Theory
NEC
Seasons
This is "Electric"
100

This type of magnetism is used to convert electrical energy to a rotating mechanical force on a motor shaft.

Electromagnetism

100

This is the total opposition to current flow in an AC circuit containing resistance, inductance and capacitance.

Impedance

100

This is an electrical source, other than a service, having no direct connection to circuit conductors of any other electrical source other than those established by grounding and bonding connections.

Separately Derived System

100

This is the day that spring usually begins in the Northern Hemisphere.

March 21st

100

Farmers often use this to keep animals out or in.

Electric fence

200

This is the number of electrical degrees, out of phase, that allows a 3-phase motor to start and rotate with out any external help.

120

200

Generators are electromechanical devices that turn mechanical energy into this.

Electrical energy

200

This table should be used to determine the full load current values for all calculations with the exception of overloads for a two-phase motors.

Table 430.249

200

A period of mild weather occurring in late autumn or early winter creates this kind of summer?

Indian Summer

200

Prisoners in some states may find their end of the road here.

Electric chair

300

This item is used to remove the capacitor and start winding from the circuit once a single phase, capacitor start motor has accelerated.

Centrifugal switch

300

This is the formula used to determine inductive reactance in a circuit when voltage, resistance, frequency, inductance and capacitance is known.

XL = 2пfL

300

This table should be used to determine the minimum burial depth for all wiring methods over 1000 V.

Table 300.50

300

According to folklore, this item can be balanced on it’s end the first day of Spring.

An egg

300

For a charged up time you may find it on this road in the city.

Electric avenue

400

This device is used to cause a phase shift, allowing a single-phase motor to start rotation.

capacitor

400

What do they call the opposition to current flow created by any capacitor in a circuit?

Capacitive Reactance (Xc)

400

This type of circuit is one in which any spark or thermal effect is incapable of causing ignition of a mixture of flammable or combustible material  in air under prescribed test conditions.

Intrinsically Safe Circuit

400

Each spring and fall, ducks and geese migrate from one feeding ground to another along certain routes. This is the name of the migration routes for the waterfowl.

Flyways

400

This is the term applied to power being generated with flowing water.

Hydroelectric

500

This type of motor, which is the most common motor used today, is very similar to a transformer with a rotating secondary.

Squirrel cage motor

500

In an AC circuit with a purely inductive circuit containing a total inductive reactance of 65 ohms, a voltage supply of 130 volts at a frequency of 120 Hz, how much total current will be flowing?

2 amps

500

This is the table used to determine the general lighting load for a hospital.

Table 220.12

500

This is the name used by meteorologists to describe the first day of spring. (Part of the name sounds like a car)

Vernal Equinox

500

This is commonly seen during the celebration at many weddings.

Electric Slide