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Aki's TRL > Electricians Quiz Final Test > Flashcards

Electricians Quiz Final Test Flashcards

1
Q

Small solid wire is usually joined by

A

Western union splice

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2
Q

Terminal lugs are used For multi stranded wire True or false

A

True

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3
Q

Conductor lacing is used to group a number of wires into bundles true or false

A

True

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4
Q

Self Clinching Cable straps (stay tied) Should never be used

A

On coaxial cable, in high temperature areas, Were straps may fall into moving components

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5
Q

When troubleshooting electrical equipment you should use a high impedance multi meter

A

To prevent excessive current flow through which would damage it

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6
Q

Describe a mobile man communication system

A

Radio

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7
Q

State the purpose for lacing conductors

A

To keep wires neat And allow easier tracing

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8
Q

Name four way to start a single phase motor

A

Shaded poles, Manually, Capacitors start, Starter windings

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9
Q

Disadvantage of a DC motor

A

Low starting torque In Series

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10
Q

Three ways a DC motor is wound

A

Shunt wound, series wound, compound wound

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11
Q

The greatest single cause of electrical resistance is the

A

High inductance

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12
Q

Which of the listed device is used to measure pressure and convert it to an Electrical signal

A

Transducer

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13
Q

When taking resistance readings the circuit should be

A

De-energized

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14
Q

What meter is used to check for continuity of a electrical circuit or devices

A

Ohms meter

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15
Q

A resistance in a circuit of unknown value is to be tested using the volt meter ampmeter method therefore the meter should be connected with

A

Both meters in parallel with resistance

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16
Q

Electrical Powers is expressed in Ohms true or false

A

False

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17
Q

A device that most commonly utilizes the principals of Electromagnetic induction is the

A

Transformer

18
Q

What is the difference in the construction of high voltage transformers and low-voltage transformers

A

The number of turns in the winding in a step up transformer

19
Q

What three generator Conditions Are needed to Safely parallel to the bus

A

Phase orientation, frequency, voltage

20
Q

What uses magnetic induction

A

Solenoids and transformers

21
Q

What application would a synchronous motor be used

A

Constant speed type

22
Q

Synchronous motor’s uses separate DC Excitation current. True or false

A

True

23
Q

LDP devices low-voltage protection device requires an operator to restart it manually true or false

A

True

24
Q

How is a generator output voltage controlled

A

AVR automatic voltage regulator

25
Q

What is the smallest USCG Mandated AWG on ships

A

18 AWG

26
Q

Difference between DC motors and DC generators

A

Same

27
Q

What system uses a thermistor

A

HVAC systems

28
Q

What are two common core types for transformers

A

Shell and hollow type

29
Q

What are we checking when measuring an air gap of a generator

A

Bearings

30
Q

What semiconductors Change his resistance in a HVAC system

A

Thermistor

31
Q

What do slip rings do

A

Supply current to the Armature to the DC motors or transfer between stationary rotating contacts

32
Q

Why Megger

A

Checking the health of insulation

33
Q

Different winding types in DC motors

A

Lap winding and Wave windings

Lap windings are high current low-voltage

Wave windings are high in voltage space efficient and low-cost

34
Q

What are the three losses of transformers

A

Eddy current copper and Hyatt

35
Q

Four ways to start a AC motor

A

Shaded pole, starter windings, capacitor, manually

36
Q

Four types of diagrams

A

Wiring
Single line
Block
Schismatic

37
Q

What is slip

A

When a rotor can’t catch up

38
Q

What’s a commutator

A

Dc motor

39
Q

Motors convert electrical energy to mechanical Power using what principle

A

Voltage induction

39
Q

Interpoles accomplish the same thing as

A

Compensating winding

40
Q

A inductance reactants load is expressed in

A

Ohms

Aki's TRL (4 decks)

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