## Electronics (Mike Jaroch)

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### A

#### ANTISEIZE COMPOUND

A silicon-based, high-temperature lubricant applied to threaded components
to aid in their removal after they have been subjected to rapid heating and cooling [4].

 Keyword(s): ANTISEIZE COMPOUND

#### APERTURE

APERTURE—See SLOT [11].
 Keyword(s): APERTURE

#### APL

ALLOWANCE PARTS LIST (APL)—Repair parts required for units having the equipment/ component listed [14].

 Keyword(s): ALLOWANCE PARTS LIST

#### APOGEE

The point in the orbit of a satellite the greatest distance from the earth [17].
 Keyword(s): APOGEE

#### APPARENT DRIFT

The effect of the earth's rotation on a gyro that causes the spinning axis to appear to make one complete rotation in one day. Also called APPARENT PRECESSION or APPARENT ROTATION [15].

 Keyword(s): APPARENT DRIFT

#### APPARENT POWER

That power apparently available for use in an ac circuit containing a reactive
element. It is the product of effective voltage times effective current expressed in volt-amperes. It must be multiplied by the power factor to obtain true power available [2].

 Keyword(s): APPARENT POWER

#### APPARENT PRECESSION

APPARENT PRECESSION—See APPARENT DRIFT [15].
 Keyword(s): APPARENT PRECESSION

#### APPARENT ROTATION

APPARENT ROTATION—See APPARENT DRIFT [15].
 Keyword(s): APPARENT ROTATION

#### ARC EXTINGUISHER

The part of a circuit breaker that confines and divides the arc which occurs when the contact of the circuit breaker opens [3].

 Keyword(s): ARC EXTINGUISHER

#### ARMATURE

(1) In a relay, the movable portion of the relay [3]. (2) The windings in which the output voltage is generated in a generator or in which input current creates a magnetic field that interacts with the main field in a motor [5].

 Keyword(s): ARMATURE

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