electrical job information
問題一覧
1
The employer ? post and maintain proper warning signs where an energized electric power circuit exists.
shall
2
Razor knife
3
Cutting chisel
4
Most building wire, such as THHN and XHHW, are Class ? stranding.
B
5
Global standards for conductor stranding include ? resistance and ? cross-sectional area.
maximum DC / minimum
6
A typical application of ropelay stranded conductors is ? .
welding cable
7
What factor is not important when determining the length of anchor to be used?
Anchor diameter
8
What type of anchor comes in zinc-plated, hot-dipped galvanized, and stainless steel?
Wedge Anchor
9
Prestressed concrete is considered a passive form of reinforcing concrete.
false
10
Lumber can be treated to resist flame spread and smoke.
true
11
The most basic way of getting wire and cables into cable tray is to ? .
set up people at all corners and snag points
12
When using a set-screw type pulling head, the general rule is that the conductor should occupy between ? of the barrel connector's cross-sectional area.
40–60%
13
The interiors of enclosures or raceways installed underground are considered to be ? locations.
wet
14
improper
15
If a person could not readily escape from the space in an emergency, the space is considered ? .
to have a limited or restricted means of exit
16
When erecting a scaffold, use ? instead of blocking to adjust to uneven grade conditions.
adjusting screws
17
open end rench
18
Pin punch
19
EMT, rigid/IMC cable and conduit hanger
20
4" raised octagon mud ring
21
Type MC metal-clad cable must be secured every ? .
6
22
Type ? conductor applications:
General-purpose single conductor for installation in conduit or cable tray
Smallest OD and lowest cost 600V single conductors
THHN
23
There are two types of lay direction: the S-twist, which is for ? applications, and the Z-twist, which is for ? applications.
underground / overhead
24
Lay length impacts the ? and ? of a conductor.
weight / DC resistance
25
Before the anchor is placed in the hole, workers should ? .
Clean the hole out of all dust and debris
26
A toggle bolt anchor may be used in ? base material.
c. or d. only
27
Which of the following have the lowest duty rating in drywall?
Plastic wall anchors
28
Which kind of drywall or hollow wall anchor comes in the largest diameter?
Toggle bolts
29
Which classification do most metal buildings fall under?
Type II
30
Interior partition walls are built with lighter-weight, ? studs.
25-gauge
31
A business type occupancy is one where goods are for sale, such as a grocery store.
false
32
Why is it necessary to learn about prestressed concrete?
All of the above
33
Adding rebar to concrete is considered ? reinforcement.
passive
34
Concrete blocks are classified by the weight of the concrete mix. How many classifications are there?
3
35
Which type(s) of non-destructive testing equipment does not require access to both sides of the concrete?
Ground penetrating radar
36
The IBC limits wood structures in height and overall area.
True
37
A(n) ? is a type of large beam used as the main structural support for smaller beams.
girder
38
The use of cold-formed steel studs is a popular building material for framing ? walls in residential, commercial, and industrial construction projects.
structural and non-structural
39
A ? building is constructed of very thick and very heavy walls of brick or stone that support the entire building, including the floor slabs and roof.
load-bearing masonry
40
Post-tensioning is most often used with large, heavy concrete sections that are not easily transported.
True
41
Which of the following are advantages to using prestressed concrete?
I. Faster construction
II. Flexible design
III. Less concrete needed for same strength
IV. Reduced cost
V. Requires additional equipment
VI. Requires highly skilled workers
I., II., III., and IV.
42
A living document is one that never changes.
False
43
Pre-engineered buildings can be purchased in packages that include the predrilled, structural steel framing system, the metal roofing system, and wall panels.
True
44
To attach an item to a hollow wall, the best support will come from the ? .
stud
45
What do all male masonry fasteners (except for the concrete screw) require the hole to equal?
The anchor diameter
46
What style of anchor would be considered a male type fastener?
b. or c
47
Which kind(s) of drywall or hollow wall anchor(s) are rated for heavy duty?
Snap type toggle,Toggle bolts
48
What style of anchor would be considered a female type fastener?
a. or b.
49
What size drill bit should be used when installing a 1/4-inch concrete screw?
3/16" bit
50
A drop-in anchor requires the use of a(n) ? .
setting tool
51
When fastening a heavy item to a brick façade wall, which of the following is the most important?
Anchor the item to the main structure and not the brick itself.
52
The 1/4-inch concrete screw requires what size bit?
3/16
53
An entry supervisor also may serve as an attendant or as an authorized entrant, as long as that person is trained and equipped as required by this standard for each role he or she fills.
True
54
? identify all confined spaces in which their workers may work and determine whether any are permit spaces.
All employers
55
For entry rescue, the employer can only plan on using an on-site rescue team (consisting of its own or another contractor's employees) even if an offsite team could respond in time to provide rescue.
false
56
? are a type of aerial work platform that is attached to extension arms that are recessed within one another—like a refractor style of telescope.
Boom lifts
57
Before work is begun, the employer ? ascertain by inquiry or direct observation, or by instruments, whether any part of an energized electric power circuit, exposed or concealed, is so located that the performance of the work may bring any person, tool, or machine into physical or electrical contact with the electric power circuit.
shall
58
Flat nose pliers also are known as ? pliers.
duck bill
59
Slip joint pliers are also known as ? pliers.
tongue and groove,water pump
60
Three nose configurations found on long nose pliers are ? , ? , and ? .
I. chain
II. needle
III. New England
IV. round
V. square
I., II., and IV.
61
316 Stainless Steel is best suited for use in what type of environment?
Submerged in water/chemicals
62
The 3/16-inch concrete screw requires what size bit?
5/32"
63
Stone veneers are used as a structural aspect of a wall.
False
64
In a bonded, post-tensioned slab, the tendons are coated with grease and encased in a plastic covering to prevent corrosion.
False
65
The first timber home was built about ? years ago.
10,000
66
Which of the following is a primary function of a receptacle face?
Inhibit mis-mating of differently rated devices
67
Receptacles listed as tamper-resistant are not required in ? .
restaurant dining rooms
68
If 15- and 20-ampere duplex receptacles are not marked with “CO/ALR,” they are suitable for use with ? .
copper and copper-clad aluminum conductors only
69
Electrical receptacles come in which two basic varieties?
Straight blade and locking
70
Isolated ground receptacles are required to be identified by ? .
an orange triangle on the face of the receptacle
71
A device's mounting strap's primary functions are ? .
grounding, marking, mounting, and stabilizing
72
Receptacle contacts are offered in four primary designs to accommodate different configurations based on the amperage and voltage of a device.
False
73
Fish tapes are most commonly made out of ? spring steel.
tempered
74
Cable tray cable cleats are more commonly used for ? cables.
power
75
The mare's tail method of making a wire pulling head mimics a ? .
pulling grip
76
The compatibility of the pulling ? and the conductors and raceway is an important consideration when making the selection.
lubricant
77
When planning a wire pull, it is best to remember to ? .
place each component in the wire pull so that the pulling forces are used effectively
78
A good cable lashing device to use for communications cables where moves, adds, and changes are frequent is the ? .
hook-and-loop fastener
79
Some cable pullers made for smaller gauge wire pulls are handheld and driven by two-speed drills with a ? drill motor.
1/2"
80
Typical heavy-duty application cable pullers have a peak pulling force of ? .
10,000 pounds
81
An Electrical Worker is installing conductors for a service drop installation from pole-to-pole. The worker installs the service cable over a sidewalk. What is the minimum height required for the worker to clear the sidewalk with the service cable?
12' (4 m)
82
The cable manufacturer minimum bending radius for cables with an overall diameter of one inch or less is ? times the overall diameter of the cable.
4
83
When planning a wire pull, it is best to remember to ? .
plan several shorter pulls rather than fewer longer pulls
84
After the direct buried cables have been installed and the trench has been backfilled, backfill should be adequately compacted, but machine compaction should not be used within ? of the cable.
6
85
Strength requirements are expressed in terms of a ? , which is the ratio of rated cable strength to support cable weight.
minimum safety factor (Fs)
86
A ? and ? are some common tools/materials that can be used to help install pull ropes and/or cables in cable trays.
fish stick / water bottle
87
What should be considered by the Electrical Worker when choosing the right cable support for a vertical installation?
All of the above
88
The ? is a basic tool for wire pulling that is useful for cutting wires and cables that are difficult to reach.
diagonal cutting pliers
89
When planning a wire pull, it is best to remember to ? .
pull in a direction that will require the lowest amount of pulling force
90
? -style pulling heads utilize opposing set screws to secure the conductor in the conductor receptacle.
Mechanical
91
Fish sticks are typically made of ? fiberglass rods
luminescent
92
Fire compartments divide a building into separate areas that stop or delay toxic gases and flames during a fire from entering the compartments.
True
93
Through penetrations in concrete floor assemblies can have the annular space filled with mortar provided that the penetrating item is ? .
metallic pipe
94
Which of the following is not included in a complete through penetration firestop system?
None of the above
95
What IBC chapter covers the requirements for fire-resistant rated assemblies?
7
96
The International Building Code (IBC) requires all smoke barriers to be permanently identified with signs or stenciling.
true
97
? are often used to make beams or posts, but they are the only engineered wood product that may also be made into arches or other shapes.
Glued laminated beams
98
A listed through penetration system that identifies a metallic pipe penetrating the fire-resistant assembly has a numeric value in the system number of ? .
1000-1999
99
When performing a firestop installation that has point contact between the penetrating item and the wall or floor surface, there is always a requirement to apply a 1/4-inch bead between the penetrating item and the wall or floor surface.
False
100
No employer shall permit an employee to work in such proximity to any part of an electric power circuit that the employee could contact the electric power circuit in the course of work, unless ? .
I. the employee is protected against electric shock by deenergizing the circuit
II. grounding the deenergized circuit
III. by guarding it effectively by insulation or other means
All are required to work in proximity to any part of an electric power circuit.
intro to apprenticeship lesson 3
intro to apprenticeship lesson 3
Marcus Murphy · 11問 · 1年前intro to apprenticeship lesson 3
intro to apprenticeship lesson 3
11問 • 1年前intro to apprenticeship lesson 4
intro to apprenticeship lesson 4
Marcus Murphy · 23問 · 1年前intro to apprenticeship lesson 4
intro to apprenticeship lesson 4
23問 • 1年前intro to apprenticeship lesson 5
intro to apprenticeship lesson 5
Marcus Murphy · 6問 · 1年前intro to apprenticeship lesson 5
intro to apprenticeship lesson 5
6問 • 1年前intro to apprenticeship lesson 1
intro to apprenticeship lesson 1
Marcus Murphy · 5問 · 1年前intro to apprenticeship lesson 1
intro to apprenticeship lesson 1
5問 • 1年前electrical job information 2
electrical job information 2
Marcus Murphy · 44問 · 1年前electrical job information 2
electrical job information 2
44問 • 1年前conduit 1
conduit 1
Marcus Murphy · 97問 · 1年前conduit 1
conduit 1
97問 • 1年前distance multipliers
distance multipliers
Marcus Murphy · 6問 · 1年前distance multipliers
distance multipliers
6問 • 1年前shrink constant
shrink constant
Marcus Murphy · 6問 · 1年前shrink constant
shrink constant
6問 • 1年前問題一覧
1
The employer ? post and maintain proper warning signs where an energized electric power circuit exists.
shall
2
Razor knife
3
Cutting chisel
4
Most building wire, such as THHN and XHHW, are Class ? stranding.
B
5
Global standards for conductor stranding include ? resistance and ? cross-sectional area.
maximum DC / minimum
6
A typical application of ropelay stranded conductors is ? .
welding cable
7
What factor is not important when determining the length of anchor to be used?
Anchor diameter
8
What type of anchor comes in zinc-plated, hot-dipped galvanized, and stainless steel?
Wedge Anchor
9
Prestressed concrete is considered a passive form of reinforcing concrete.
false
10
Lumber can be treated to resist flame spread and smoke.
true
11
The most basic way of getting wire and cables into cable tray is to ? .
set up people at all corners and snag points
12
When using a set-screw type pulling head, the general rule is that the conductor should occupy between ? of the barrel connector's cross-sectional area.
40–60%
13
The interiors of enclosures or raceways installed underground are considered to be ? locations.
wet
14
improper
15
If a person could not readily escape from the space in an emergency, the space is considered ? .
to have a limited or restricted means of exit
16
When erecting a scaffold, use ? instead of blocking to adjust to uneven grade conditions.
adjusting screws
17
open end rench
18
Pin punch
19
EMT, rigid/IMC cable and conduit hanger
20
4" raised octagon mud ring
21
Type MC metal-clad cable must be secured every ? .
6
22
Type ? conductor applications:
General-purpose single conductor for installation in conduit or cable tray
Smallest OD and lowest cost 600V single conductors
THHN
23
There are two types of lay direction: the S-twist, which is for ? applications, and the Z-twist, which is for ? applications.
underground / overhead
24
Lay length impacts the ? and ? of a conductor.
weight / DC resistance
25
Before the anchor is placed in the hole, workers should ? .
Clean the hole out of all dust and debris
26
A toggle bolt anchor may be used in ? base material.
c. or d. only
27
Which of the following have the lowest duty rating in drywall?
Plastic wall anchors
28
Which kind of drywall or hollow wall anchor comes in the largest diameter?
Toggle bolts
29
Which classification do most metal buildings fall under?
Type II
30
Interior partition walls are built with lighter-weight, ? studs.
25-gauge
31
A business type occupancy is one where goods are for sale, such as a grocery store.
false
32
Why is it necessary to learn about prestressed concrete?
All of the above
33
Adding rebar to concrete is considered ? reinforcement.
passive
34
Concrete blocks are classified by the weight of the concrete mix. How many classifications are there?
3
35
Which type(s) of non-destructive testing equipment does not require access to both sides of the concrete?
Ground penetrating radar
36
The IBC limits wood structures in height and overall area.
True
37
A(n) ? is a type of large beam used as the main structural support for smaller beams.
girder
38
The use of cold-formed steel studs is a popular building material for framing ? walls in residential, commercial, and industrial construction projects.
structural and non-structural
39
A ? building is constructed of very thick and very heavy walls of brick or stone that support the entire building, including the floor slabs and roof.
load-bearing masonry
40
Post-tensioning is most often used with large, heavy concrete sections that are not easily transported.
True
41
Which of the following are advantages to using prestressed concrete?
I. Faster construction
II. Flexible design
III. Less concrete needed for same strength
IV. Reduced cost
V. Requires additional equipment
VI. Requires highly skilled workers
I., II., III., and IV.
42
A living document is one that never changes.
False
43
Pre-engineered buildings can be purchased in packages that include the predrilled, structural steel framing system, the metal roofing system, and wall panels.
True
44
To attach an item to a hollow wall, the best support will come from the ? .
stud
45
What do all male masonry fasteners (except for the concrete screw) require the hole to equal?
The anchor diameter
46
What style of anchor would be considered a male type fastener?
b. or c
47
Which kind(s) of drywall or hollow wall anchor(s) are rated for heavy duty?
Snap type toggle,Toggle bolts
48
What style of anchor would be considered a female type fastener?
a. or b.
49
What size drill bit should be used when installing a 1/4-inch concrete screw?
3/16" bit
50
A drop-in anchor requires the use of a(n) ? .
setting tool
51
When fastening a heavy item to a brick façade wall, which of the following is the most important?
Anchor the item to the main structure and not the brick itself.
52
The 1/4-inch concrete screw requires what size bit?
3/16
53
An entry supervisor also may serve as an attendant or as an authorized entrant, as long as that person is trained and equipped as required by this standard for each role he or she fills.
True
54
? identify all confined spaces in which their workers may work and determine whether any are permit spaces.
All employers
55
For entry rescue, the employer can only plan on using an on-site rescue team (consisting of its own or another contractor's employees) even if an offsite team could respond in time to provide rescue.
false
56
? are a type of aerial work platform that is attached to extension arms that are recessed within one another—like a refractor style of telescope.
Boom lifts
57
Before work is begun, the employer ? ascertain by inquiry or direct observation, or by instruments, whether any part of an energized electric power circuit, exposed or concealed, is so located that the performance of the work may bring any person, tool, or machine into physical or electrical contact with the electric power circuit.
shall
58
Flat nose pliers also are known as ? pliers.
duck bill
59
Slip joint pliers are also known as ? pliers.
tongue and groove,water pump
60
Three nose configurations found on long nose pliers are ? , ? , and ? .
I. chain
II. needle
III. New England
IV. round
V. square
I., II., and IV.
61
316 Stainless Steel is best suited for use in what type of environment?
Submerged in water/chemicals
62
The 3/16-inch concrete screw requires what size bit?
5/32"
63
Stone veneers are used as a structural aspect of a wall.
False
64
In a bonded, post-tensioned slab, the tendons are coated with grease and encased in a plastic covering to prevent corrosion.
False
65
The first timber home was built about ? years ago.
10,000
66
Which of the following is a primary function of a receptacle face?
Inhibit mis-mating of differently rated devices
67
Receptacles listed as tamper-resistant are not required in ? .
restaurant dining rooms
68
If 15- and 20-ampere duplex receptacles are not marked with “CO/ALR,” they are suitable for use with ? .
copper and copper-clad aluminum conductors only
69
Electrical receptacles come in which two basic varieties?
Straight blade and locking
70
Isolated ground receptacles are required to be identified by ? .
an orange triangle on the face of the receptacle
71
A device's mounting strap's primary functions are ? .
grounding, marking, mounting, and stabilizing
72
Receptacle contacts are offered in four primary designs to accommodate different configurations based on the amperage and voltage of a device.
False
73
Fish tapes are most commonly made out of ? spring steel.
tempered
74
Cable tray cable cleats are more commonly used for ? cables.
power
75
The mare's tail method of making a wire pulling head mimics a ? .
pulling grip
76
The compatibility of the pulling ? and the conductors and raceway is an important consideration when making the selection.
lubricant
77
When planning a wire pull, it is best to remember to ? .
place each component in the wire pull so that the pulling forces are used effectively
78
A good cable lashing device to use for communications cables where moves, adds, and changes are frequent is the ? .
hook-and-loop fastener
79
Some cable pullers made for smaller gauge wire pulls are handheld and driven by two-speed drills with a ? drill motor.
1/2"
80
Typical heavy-duty application cable pullers have a peak pulling force of ? .
10,000 pounds
81
An Electrical Worker is installing conductors for a service drop installation from pole-to-pole. The worker installs the service cable over a sidewalk. What is the minimum height required for the worker to clear the sidewalk with the service cable?
12' (4 m)
82
The cable manufacturer minimum bending radius for cables with an overall diameter of one inch or less is ? times the overall diameter of the cable.
4
83
When planning a wire pull, it is best to remember to ? .
plan several shorter pulls rather than fewer longer pulls
84
After the direct buried cables have been installed and the trench has been backfilled, backfill should be adequately compacted, but machine compaction should not be used within ? of the cable.
6
85
Strength requirements are expressed in terms of a ? , which is the ratio of rated cable strength to support cable weight.
minimum safety factor (Fs)
86
A ? and ? are some common tools/materials that can be used to help install pull ropes and/or cables in cable trays.
fish stick / water bottle
87
What should be considered by the Electrical Worker when choosing the right cable support for a vertical installation?
All of the above
88
The ? is a basic tool for wire pulling that is useful for cutting wires and cables that are difficult to reach.
diagonal cutting pliers
89
When planning a wire pull, it is best to remember to ? .
pull in a direction that will require the lowest amount of pulling force
90
? -style pulling heads utilize opposing set screws to secure the conductor in the conductor receptacle.
Mechanical
91
Fish sticks are typically made of ? fiberglass rods
luminescent
92
Fire compartments divide a building into separate areas that stop or delay toxic gases and flames during a fire from entering the compartments.
True
93
Through penetrations in concrete floor assemblies can have the annular space filled with mortar provided that the penetrating item is ? .
metallic pipe
94
Which of the following is not included in a complete through penetration firestop system?
None of the above
95
What IBC chapter covers the requirements for fire-resistant rated assemblies?
7
96
The International Building Code (IBC) requires all smoke barriers to be permanently identified with signs or stenciling.
true
97
? are often used to make beams or posts, but they are the only engineered wood product that may also be made into arches or other shapes.
Glued laminated beams
98
A listed through penetration system that identifies a metallic pipe penetrating the fire-resistant assembly has a numeric value in the system number of ? .
1000-1999
99
When performing a firestop installation that has point contact between the penetrating item and the wall or floor surface, there is always a requirement to apply a 1/4-inch bead between the penetrating item and the wall or floor surface.
False
100
No employer shall permit an employee to work in such proximity to any part of an electric power circuit that the employee could contact the electric power circuit in the course of work, unless ? .
I. the employee is protected against electric shock by deenergizing the circuit
II. grounding the deenergized circuit
III. by guarding it effectively by insulation or other means
All are required to work in proximity to any part of an electric power circuit.