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Journeyman Flashcards

1
Q

An instrument that is used to measure the diameter of a wire or cable to thousandths of an inch is a ________.

A

Micrometer

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2
Q

A ______ squirrel cage motor can be started at full voltage.

  1. Design A 2. Design B 3. Design C 4. Design D

A.) 1 only
B.) 1 and 2 only
C.) 3 and 4 only
D.) 1,2,3 and 4

A

D

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3
Q

A ______ is braking system for an electric motor.

  1. Friction braking
  2. Plugging
  3. Dynamic braking

A.) 1 only
B.) 3 only
C.) 1 and 3 only
D.) 1,2 and 3

A

D

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4
Q

The purpose of s clip clamp is to

A

Ensure good contact between the fuse terminals of cartridge fuses and the fuse clips

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5
Q

Galvanized conduit is made of

A

Zinc

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6
Q

Wheb wrapping a splicd with both rubber and friction tape, the main purpose of the friction tape is to

  1. Provide extra insulation
  2. Build up the insulation to the minimum thickness required
  3. Protect the rubber tape
  4. Provide a waterproof seal
A

Protect the rubber tape

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7
Q

An electrician should not wear shoes that have sponge rubber soles while working mainly because they

  1. Wear out too quickly
  2. Are not waterproof
  3. Are not insulated
  4. Are easily punctured when stepping on a nail
A

4

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8
Q

A hacksaw with fine teeth used to cut rafeways is commonly called

  1. Tube saw
  2. Keyhole saw
  3. Sabre saw
  4. Crosscut saw
A

1

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9
Q

The brightness of an incandescent lamp is rated in

A

Lumens

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10
Q

Electrician’s diagonal lineman pliers should not be used to cut

Aluminum wire
Copper wire
Steel wire
Copper-clad wire

A

Steel wire

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11
Q

A tap tool is s tool used to

Cut external threads
Remove broken bolts
Ream raceways
Cut internal threads

A

Cut internal threads

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12
Q

The flux commonly used for the soldering of electrical conductors is

Zinc chloride
Rosin
Borax
None of these

A

Rosin

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13
Q

The continuity of an electrical circuit can be determined in the field by the means of

An ammeter
Wheatstone bridge
Bell and battery set
Wattmeter

A

Bell and batt set

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14
Q

A shunt is sometimes used ti increase the range of an electrical measurement instrument. The shunt is normally used when measuring

Ac voltage
Dc voltage
Dc amperes
Ac amperes

A

Dc amperes

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15
Q

Rubber insulation on an electrical conductor would quickly be damaged by continous contact with

Water
Acid
Oil
Alkali

A

Oil

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16
Q

With respect to fluorescent lamps it is correct to state

The filaments seldom burns out
The starters and tubes must be replaced at the same time
They are easier to install than incandescent light bulbs
Their efficiency is less than the efficiency of incandescent light bulbs

A

The filaments seldom burn out

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17
Q

The connection between the grounded circuit conductor and the egc at the service is called the ____ bonding jumper

Circuit
Equipment
Main
Appliance

A

Main

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18
Q

The electrician’s tapered reamer is used for

Reaming the threads on couplings
Reaming the holes in bushings
Reaming the end of rigid conduit after it is cut
Making holes in boxes

A

C

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19
Q

Three way switching does not use the ff conductor

Ungrounded
Traveler
Grounded
Switch leg

A

Grounded

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20
Q

A fuse puller is used in replacing

Cartridge fuses
Plug fuses
Link fuses
Ribbon fuses

A

Cartridge fuses

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21
Q

The rigid conduit connecting to an outlet box should have a ____.

Bushing and locknut on the inside
Bushing on the outside and L on the inside
L and B on the inside
L on the o and a B on the inside

A

D

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22
Q

A toaster will produce less heat on low voltage because

Its total watt output decreases
The current will decrease
The resistance has not changed
All of these

A

All of these

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23
Q

The standard residential service is a 3 wire, 240V single phase system. The max voltage to gr in this system would be ____ V.

A

120

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24
Q

Where galvanized conduit is used, the main purpose of the galvanizing is to

Slow down rust
Provide better continuity
Provide better strength
Provide a better surface for painting

A

Slow down rust

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25
To lubricate a motor sleeve bearing you would use Grease Oil Vaseline Graphite
Oil
26
When soldering conductors, flux is used To heat the conductors quicker To keep the surfaces clean To prevent loss if heat To bond the conductors
To keep the surface clean
27
In electrical wiring, wire nuts are used to Connect wires ti terminals Join wires and insulate the joint Connect the electrode Tighten the panel studs
Join wires and insulate the joint
28
In a residence the wall switch controlling the ceiling light is usually Connected across both lines A double pole switch Connected in one line only A 4 way switch
Connected in one line only
29
Acid is not considered a good flux when soldering conductors because it Smells bad Is corrosive Is non-conductive Costs too much
Is corrosive
30
The conductor with the highest installation temp rating is RH TW THWN THHN
Thhn
31
To fasten a raceway to a solid concrete ceiling, you would use Toggle bolts Expansion bolts Wooden plugs Rawl plugs
Expansion bolts
32
The grounded cond of a lighting ckt is always connected to the screw of a light socket to Reduce the possibility of accidental shock Ground the light fixture Improve the efficiency of the lamp Provide the easiest place to connect the wire
A
33
A _____ helps prevent arcing in movable contacts. Spring Condenser Resistor Hydrometer
Condenser
34
Determining a positive wire on a single phase ckt is Possible with a wattmeter Possible with a voltmeter Possible with an ammeter An impossibility
D
35
The reason for installing electrical conductors in a conduit is To provide a ground To increase the ampacity of the conductors To protect the conductors from damage To avoid derating for continuous loading of conductors
To protect chuchu
36
Wing nuts are useful on equipment where Cotter pins are used The nuts must be removed frequently A wrench cannot be used Screws cannot be used
B
37
The best thing to cut pvc conduit within a tight area is A short hacksaw A nylon string A knife A pipe cutter
Nylon
38
What is the normal taper on a standard conduit thread-cutting die? 1/2’’ per foot 1/4 3/8 3/4
3/4’’ per foot
39
The average dry cell battery gives an approx voltage of 1.5 1.2 1.7 2
1.5
40
The _____ ckt is that portion of a wiring system beyond the final ocp. Lighting Feeder Signal Branch
Branch
41
What type of fastener would you use to mount to a hollow tile wall?
Toggle bolts
42
A hook on the end of a fish tape is not to Keep it from catching on joints and bends Tie a swab to Tie the wires, to be pulled Protect the end of the wire
D
43
In sockets, extension cord is protected by means of the ____ knot. Underwriter’s Clove hitch Sheepshank Western union
A
44
A low energy power ckt Is a remote control ckt Is a signal ckt Has its power supplied by transformer and batteries None of these
C
45
60 cycle frequency travels 180 degrees in how many seconds
1/120
46
Note. When stripping insulation from an aluminum conductor Remove insulation as you would sharpen a pencil Peel the insulation back and then cut outwards
Remember that
47
Which of the ff is not used to fasten ewuipment to concrete Expansion bolt Lead shield Rawl plug Steel bushing
Steel bushing
48
An electrical condenser is best defined as A coil of wire A wrapping of layers of metal foil A coil of wire with layers of metal foil A wrapping of many layers of metal foil set apart by waxed paper
D
49
You would use an approved ____ to protect conductors from abrasion where they enter a box Locknut Bushing All thread Hickey
Bushing
50
A ___ helps prevent arcing in movable contacts Spring Condenser Resistor Hydrometer
Condenser
51
Which of the following is the poorest conductor of electricity Mercury Alum Carbon Silver
Carbon
52
Galvanized conduit is made of Iron Zinc Nickle Lead
Iron
53
When cutting holes in masonry which of the ff tools is most commonly used Auger bit Router bit Star drill Reamer
Star drill
54
A wrench you would not use to connect rmc is a ____ wrench Box end Stillson Strap Chain
Box end
55
The instrument that would prove least useful in testing for opens, grounds, and shorts after the wiring has been completed is the ____ Voltmeter Ammeter Ohmeter Megged
Ammeter
56
On a delta 3-phase 4 wire secondary, how many hot wires may use the common neutral 1 2 3 4
2
57
Insulated nonmetallic boxes are made of Polyvinyl chloride Bakelite Bower-barff lacquer
1 and 2
58
Which of the ff is the best type of saw to use to cut a 3’’ dia hole thru 1/2’’ plywood? Circular saw Saber saw Hack saw Cross-cut saw
Saber
59
A magnetic field is created around a conductor
Whenever current flows in the conductor
60
A universal motor has brushes that ride on the Commutator Stator Interpole Field
Commutator
61
Electrical power is s measure of Work wasted Voltage Rate at which work is performed Total work performed
Rate chuchu
62
This statement is true: conduit painted with enamel cannot be used outdoors True: emt raceway can be installed in an air conditioning space heating duct
Not true: pvc shall have a minimum burial depth of 24”
63
If a 240v heater is used on 120v, the amount of heat produced will be Twice as much Four times as great 1/4 as much The same
C
64
The transferring of electrons from one material to another would be
Static electricity
65
On a 120v 1phase ckt, grnd fault protection for personnel operates on the principle of unbalanced current between The grounded and ungrounded c The ungrounded c The grounding c and the neutral c The service disconnect and the bc
A
66
Of the six ways of producing emf, which method is used the least? Pressure Solar Chemical Friction
Friction
67
The armature current drawn by any dc motor is proportional to the Motor speed Voltage applied Flux required Torque applied
B

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