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Core 2 > 1-7 > Flashcards

1-7 Flashcards

1
Q

Electricity

A

Physical phenomena arising from existence and interaction of an electrical charge.

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2
Q

Voltage/electromagnetic force

A

amount of force being applied to a circuit to produce an electron flow

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3
Q

Amperage

A

quanitity of electricity flowing through the circuit

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4
Q

Resistance

A

opposition to the flow of electrons offered by a device or material

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5
Q

OHM(Omega)

A

Measurement of resistance to current flow

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6
Q

Watt

A

Measurement of electrical work done.

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7
Q

Static form of electricity

A

Electricity at rest(Hard to measure)

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8
Q

Positive/Positive

A

Repel each other

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9
Q

positive/negative

A

Attract together

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10
Q

Static Electricity is produced by

A

Friction

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11
Q

Dynamic Electricity

A

Used in every day life(easy ot measure)

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12
Q

MECHANICAL method of producing electricity:

A

Produced by rotating a magnetic field through another magnetic field

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13
Q

CHEMICAL method of producing electricity:

A

Produced by surrounding two or more metallic plates with chemical electrolyte.(BATTERY!)

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14
Q

THERMAL method of producing electricity:

A

Produced by joining two dissimilar metals and applying heat

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15
Q

PRESSURE method of producing electricity:

A

Produced by applying pressure to quartz, which will produce an electron flow.

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16
Q

Direct Current

A

Steady current flow in one direction

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17
Q

Alternating Current

A

Current flow that reverses direction at specific intervals(HERTZ/CYCLES)

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18
Q

Electrical test equipment safety

A

-Determine power requirements before testing
-Remove jewelry
-Inspect test equipment for calibration date, broken or frayed wires, etc.
-

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19
Q

Multimeter Purpose

A

To measure voltage, current and resistance

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20
Q

Test Leads are

A

colored for polarity

  • red(positive)
  • Black(negative)
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21
Q

Multimeter digital display features POWER_UP

A

all segments appear while instrument performs a self test. will chirp when ready

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22
Q

Multimeter digital display features OVERLOAD INDICATION

A

indicates input is too large to display.

23
Q

multimeter digital display features LOW BATTERY

A

appears when 100 hours remain. will go standby when 1 hour remains

24
Q

Aircraft electrical system purpose

A

Produce and provide electrical power to the various aircraft systems

25
Q

Aviation electrical system components GENERATOR

A

Produces AC electrical power of three-phase. Driven by constant speed drive

26
Q

Aviation electrical system components CONTROL SWITCHES

A

located in flight station/cockpit. used to select electrical power

27
Q

Aviation electrical system components GENERATOR ADVISORY LIGHTS

A

indicated if generator is supplying power

28
Q

Aviation electrical system components TRANSFORMER RECTIFIERS

A

converts AC power to DC power.

29
Q

Aviation electrical system components POWER DISTRIBUTION(AC/DC) BUSES

A

a bus is a power distribution point to which a number of circuits may be connected. Protected by circuit breakers

30
Q

Aviation electrical system components EMERGENCY GENERATOR

A

Provice electrical power to both AC and DC buses in event of main generator failure. Powered by RAM air turbine

31
Q

Aviation electrical system components EXTERNAL ELECTRICAL POWER RECEPTACLE

A

provides a means of connecting an electrical source of external electrical power for ground maintenance and servicing.

32
Q

Purpose of Symbols

A

To represent components on a diagram

33
Q

Types of Symbols POLARITY

A

Represent positive and negative

34
Q

Types of Symbols GROUND

A

Indicated a units casing is grounded to earth

35
Q

Types of Symbols CONNECTION

A

Indicates wires are connected with a DOT representing connection

36
Q

Types of Symbols NO CONNECTION

A

indicates wires are not connected

37
Q

Types of Symbols DISCONNECT

A

indicates that aline may be disconnected

38
Q

Types of Symbols CONNECTOR(CANNON PLUG)

A

Represent a number of lines together that may be plugged/unplugged

39
Q

Types of Symbols BATTERY

A

represents a DC power Source

—| | | | |—

40
Q

Types of Symbols FUSE

A

represents an electrical safety device

41
Q

Types of Symbols PUSH PULL CIRCUIT BREAKER

A

represents a reusable electrical safety device

42
Q

Types of Symbols LAMP

A

represents light emitted by the flowing of a heater material. know as a filament

43
Q

Types of Symbols SWITCH

A

represents a device used to connect, disconnect, or redirect power

44
Q

Types of switches

A

single pole - single throw
single pole - double throw
double pole - double throw

45
Q

Types of Symbols VOLTMETER

A

measure voltage V

46
Q

Types of Symbols AMMETER

A

measures amperage A

47
Q

Pictorial diagram

A

provides a means of readily identifying the components of a system( simplest of all diagrams

48
Q

Block Diagram

A

presents a general description of a system and its function. arranged with labeled blocks

49
Q

Schematic diagram

A 
Illustrates various componets that make up a system. 
uses symbols.
 in order.
 contains a legend
Most useful for learning aid
50
Q

Series Circuit

A

circuit with only one path of current flow

51
Q

Parallel circuit

A

circuit with two or more paths for current flow

52
Q

series parralel circuit

A

circuit which is part SERIES and part PARALLEL

53
Q

During servicing and maintenance, always ensure that

A

air craft is properly grounded to guard against static electricity

54
Q

prior to applying external power to an air craft, ensure

A

all switches are in safe, off, or normal position

Core 2 (5 decks)

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