1-3 Apprentice Lineman Study Guide
A typically larger diameter rope that is used for non-critical loads is called ?
Bull Rope
Quickly formed, light duty eye eye that can be hung on a hook
Cats Paw hitch
Quickly formed light duty, I that is most readily applicable when hosting a load
Cats paw
Material that allows the electrons to flow easily through is called
Conductor
6.25 x 10^18 electrons
Coulomb
Decimals = ?
Fractions
? Is the earliest known method of generating electricity, discovered by Greeks
Friction
What are the six methods known to force electrons from the valence ring of an atom to become a potential electrical current participant?
Friction, chemical, heat, pressure, light, and magnetism
The hazard communication standard (29 cfr 1910.1200) is more commonly known as ?
GHS
When working underground, in the event of a ? Line contact/dig up, Do not attempt to repair to turn off the line.
Gas
? Requires that chemical manufacturers and importers evaluate their chemicals and determine if they are hazardous
Globally Harmonized System
Chemical that may cause, acute or chronic health effects after exposure
Health hazard
? Is generated anytime current flows through a wire this happens because energy is used to move electrons
Heat
Materials that do not provide an easy pass for the flow of electrons are called
Insulators
Qualified employees must also be trained and competent and the skills needed to determine the minimum approach distance is specified by OSHA, as well as a special precautionary techniques, insulated tools, equipment, and ? Procedures necessary for working near exposed energize parts.
Lockout/tag out
What three things should you be looking for when checking a trencher boom?
Loose bolts; loose, worn, or missing teeth; and tension on the chain
The metric prefix for 10^6 is ?
Mega
The study of electricity concentrates on the electrons in the ? Also known as valence ring of the atom
Outer ring
Materials differ due to the number of ? that they contain
Particles
A ? Is a special ratio that compares a number to 100?
Percent
A ? is a measurement that compares a number to 100
Percent
If ladder is deemed defective, what should you do ?
Remove from service for repair
Working end of rope is called
Running end
Extension ladders are used to work on ?
Service connections to buildings
The best natural conductor of electricity is
Silver
Max possible speed at which current can travel is ?
Speed of light
Portion of a rope that is not involved in making knots, hitches or bends
Standing part
English translation of electricity?
To be like amber
Osha guidelines state that only ? may operate the digger
Trained persons
T/F Operator of a digger may not leave their controls while load is suspended
True
T/F Preformed wire ropes have strands that are permanently formed into a helical shape.
True
A ? splice finishes a rope end and is an alternative to whipping.
back
Always use rigging and slings that are in good condition and ? .
carry tags giving their rated capacity
? indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury
danger
One characteristic of semiconductors is that as they are heated, their resistance ?
decreases
Electrical current is the flow of?
electrons
? Statement describes the nature of the hazards of a chemical, including where appropriate, the degree of the hazards.
hazard
A weak point in a hydraulic line could lead to a(n) ? .
leak
Photovoltaic action uses ? energy to produce electricity.
light
Rotation resistant ropes tend to have ? breaking strength than similar sized ropes
lower
Light contains small particles of energy called
photons
Hydrogen is made up of how many protons and electrons?
1 & 1
A 6 x 19 wire rope classification could have between 15 and ? wires per strand.
26
DOT requires ? points of tie downs
4
One mile can be converted to ? .(one mile = 5,280 feet and one foot = 12 inches).
63,360
63.45 megahertz is equal to ? .
63,450 kHz
The distance or number of units from 0
Absolute value (which is always a positive number)
Health effect, usually occurring rapidly after a brief exposure
Acute effect
Whole numbers, along with the operations of ? make up the decimal system.
Addition, subtraction, multiplication, division
The ?, which states how digger derrick's are to be manufactured and tested also describes the responsibility of manufacturers, distributors, installers owners, lessors, and operators.
Ansi standard
The ability to generate electrical energy is found in the nature of the ?
Atom
1,250 volts is equal to ?
0.001250 MV
A small doorbell transformer is rated at 50-volt-amperes. This is ? of a kVA (kilovolt ampere).
0.05
200 milliamperes is equal to ? .
0.2 A
One horsepower is equal to 746 watts. This is equal to?
0.746 kW
Copper has ? valence electron(s). a. 1 b. 2 c. 3 d. 8
1
How many valence electrons in copper atom?
1
To convert from one unit of measurement to another, a conversion factor that as a fraction equal to ? must first be established
1
How many valence electrons do conductors have?
1 or 2
How many valence electrons does a conductor generally have
1 or 2
The base of a ladder should be placed so the horizontal distance from the top support to the foot of the ladder is at least ? Of the working length of the ladder
1/4
Conversions in the metric system involve multiplying or dividing by powers of ?
10
Whole number system has how many digits?
10 (0-9)
A loss of diameter, caused by corrosion, of more than ? is considered reason for removal of the rope from service.
10%
The minimum distance the base of a 40' extension ladder should be set from the wall it is leaning against is ?
10'
Digger derricks are manufactured and tested to ANSI A ?
10.31
When the prefix milli is used in the metric or SI system, a fundamental unit of measurement is multiplied by what factor?
10^-3 (.001)
Eight heating strips, each drawing 1,500 watts, use ? .
12 kW
17 milliamperes is equal to ? .
17,000 µA
The first shell of an atom may contain only ? Electrons, while the third shell may hold as many as 18.
2
There are only ? Words that can be used as signal words on a label.
2
Working load limit of a new 3/4 inch 3 strand nylon fiber rope with a safety factor of five is ?
2,520 lbs
2,500 is equal to ? , expressed as a power of 10.
2.5 x 10^3
A typical digger derrick lifting-capacity chart at 45°, with all booms extended, indicates the boom will reach ? from the center of the boom pedestal.
24
Atomic number for copper is
29
How many electrons are present in copper atom
29
Copper is made up of ?
29 protons, 35 neutrons, and 29 electrons
The hazard communication standard states ? Ways to provide information about health hazards to employers and their employees.
3
The top of an extension ladder should extend a minimum of ? above the roof edge of a building when used to access the roof of a building.
3 feet
Extension ladders up to 36 feet high should have a minimum of a ? overlap between sections when extended
3 foot
The minimum length of overlap between two sections of a 30' extension ladder should be ?
3'
Maximum number of electrons that can be contained in any orbit is
32
A semiconductor has ? Electrons in the valance shell?
4
DOT requires how many chains?
4
Semiconductors have ? electrons in the valence shell
4
Wire rope is selected based on ? factors.
4
Fiber rope derates by ? when tying bowline knot
45%
Knots reduce the rope strength by approximately
45%-55%
Knots will derate rope by ?
45-55%
Raise the boom to approximately ? to use auger
45°
When arriving at the job site, osha requires that the employee in charge of the work, hold a job briefing before the start of each job. The briefing must cover ? key elements
5
The number of lamps that draw 200 milliamperes that can be connected to a circuit that supplies 10 amperes is ? .
50
50,000,000 watts is equal to ? .
50 MW
A straight rope of any size retains ? if it's strength when tied in a bowline
50%
Bending a wire rope over a small diameter sheave/pulley can reduce the effective strength by ? .
50%
What is the minimum wire rope breaking strength required to lift a 10,000 pound load with a hoist
50,000
Max length for a fully extended extension ladder is ?
55 feet
Digger derricks have a rated capacity of up to ? on a slope?
5°
Digger derricks manufactured and tested to ansi A 10.31 are limited to their rated capacity with the unit set up on a max of a ? Slope
5°
All personnel must be at least ? Feet away from moving parts of a machine while work is being performed
6
All personal must be at least ? away from any moving parts of a trencher
6 ft
Rubber insulated gloves should have a test date that is not older than.
6 months
When a machine is operating people should be kept at least ? away
6'
Maximum working load for one inch double braided polyester winch rope is?
6,000 lbs
The direction of current flowing through a power line changes direction how often? !
60 times per second or frequency per hertz !
Electrical hazard shoes offer protection against shock hazards from contact with ? Or less under dry conditions
600V
How many valence electrons does an insulator generally have
7 or 8
Using the lifting capacities chart for digger derricks in the lesson, the rated capacity for a boom with all booms retracted at a 75° angle is ? .
7,900 lbs
One horsepower equals
746 watts
The valance shell of any atom can hold no more than ? electrons
8
To hazard communication standard uses ? Physical properties to categorize their classes of chemicals.
9
A transformer is given a 90 kilovolt test. The voltage applied is ?
90,000 V
Lowering the attachments of a trencher helps lower the center of gravity of a trencher; this will help to maintain control of a trencher when trenching ? of a hill.
Across the slope
unit of electric current flow
Ampere
Electrical balance is made up by ?
Atoms
When loading trencher on a trailer, you want the center of the weight over the ? Of the trailer
Axles
Loose or slack part of a rope between two ends
Bight
When lifting a load of unknown weight, you should perform a ?
Book capacity test (lifting the load a small amount)
How do photons release energy into the material?
By striking certain types of photosensitive material
While digging, the operator can or cannot feel for utilities in a trencher?
Can not
The name, address, and phone number of the ?, importer, or other responsible party, who can provide additional information is required to be included on all SDS
Chemical manufacturer
Who must ensure that employers are provided with copies of the SDS with their initial shipment?
Chemical manufacturers, importers, and distributors
A chemical that is a health hazard is a chemical that may cause acute or ? Health effects after exposure?
Chronic
Long and continuous, and occurs after repeated long-term exposure
Chronic health effect
Things that should be embossed on the inside of a hardhat or manufactures name, ANSI, nomenclature, date, size, and ?
Class
The class of hard hat worn extensively by Qualified Electrical Workers is the Class ? hard hat.
Class E
One of the unavoidable hazards of the electrical trade is ?
Climbing
When a ? is heated, it's resistance increases
Conductor
How frequently should a hard hat be checked for dents, cracks, or any other damage?
Daily
Whole numbers along with the operations of addition, subtraction, multiplication, and division, form a mathematical or numbering system. This system is called ?
Decimal system
Whole numbers, along with the operations of addition, subtraction, multiplication, and division, form a mathematical or numbering system. This system is called ?
Decimal system
When referring to wire rope, the term "lay" means the designation for the ?
Direction the strands are twisted
When one electron strikes a valence shell with two valence electrons, the energy of the incoming electron is ? between the two valence electrons
Divided
Percentages represents a portion of a whole unit ? into ?
Divided/hundredths
Ohm's law calculations voltage is indicated by what letter
E
Another safety device on a bore machine is the?
Electrical strike warning system
When two unlike metals are submerged in a solution known as electrolyte, an ? process takes place that causes the transfer of electrons through the electrolyte from one of the metals to the other
Electrochemistry
Some material (neon gasses, argon, and mercury vapor) give off light when current is passed through them
Electroluminescence
An electrical current passing through certain matter can cause chemical actions to take place. This action is called
Electrolysis
Increasing the temperature applied to the junction of a thermocouple will cause a greater transfer of
Electrons
Only ? In the valance shell are available to participate and electrical current flow.
Electrons
The external energy is imparted to the ? which "flow in a conductor"
Electrons
Friction is created by running objects together, causing ? to be transferred from one material to the other. This process is called ?
Electrons/triboelectricity
The hazard communication standard states three ways to provide information to employers and employees regarding health hazards. These three ways are labels and warnings, SDS, and ?
Employee training
Heat is generated any time current flows through a wire, this happens because ? is used to move electrons
Energy
Flow of electrons is always from the pole of an electrical energy source that has an ? Of electrons to the pole that has a ? Of electrons
Excess/deficiency
Fall arrest systems are required when climbing all ladders except?
Extension ladders
Which splice is a commonly use one in line work
Eye splice
T/F 1 V of current flows through a wire when one coulomb flows past a point in one second
False
T/F A 12,000-volt transformer is often referred to as a 120-kilovolt transformer.
False
T/F After the conversion factor has been established, the next step is to divide the original measurement by the conversion factor?
False
T/F Allowing the stabilizer arms to remain off the ground allows a backhoe to move when digging in hard ground and is considered a good practice.
False
T/F Fiber core rope has less flexibility but is stronger than WSC or IWRC.
False
T/F It is considered a good practice to attach light loads to the fall protection anchor point because that puts the material within easy reach
False
T/F Like charges attract each other.
False
T/F Materials with a partially filled valence ring are said to be chemically stable
False
T/F More current will be available when the individual cells of a battery are connected in series
False
T/F More voltage will be available when the individual cells of a battery are connected in parallel.
False
T/F PPE can be used as a substitute for engineering and administrative controls.
False
T/F Photovoltaic action occurs when electrons strike one of two connected plates, causing one plate to release photons to the other. This causes opposite charges to be built up on the plates, like a battery.
False
T/F Seale stranded rope is more flexible than Warrington wire rope, but more susceptible to wear.
False
T/F Semi conductors are good conductors as well as good insulators
False
T/F The sheep shank is a hitch?
False
T/F Unlike charges repel each other ?
False
T/F Voltage can flow through a wire or other conductor.
False
T/F When climbing down a hook ladder into working position, always rely on counting the rungs to avoid stepping off the ladder
False
T/F the flow of electrons is always from the pole of an electrical energy source that has a deficiency of electrons to the pole that has an excess of electrons
False
To convert percentage figures to decimals, move the decimal point two places to the right, and drop the percent sign?
False
Tag lines are commonly used with ? Rope
Fiber
What did osha bring out to help control chemical exposure on the job and to ensure the evaluation of the hazards of all the chemicals that are produced or imported into this country?
Globally Harmonized System (formally known as Hazard Communication Standard HazCom)
When giving hand signals, the ? And machine operator must remain in plain sight of each other
Ground worker
ANSI type 1 hard hat:
Has full brim around entire hat
The most widely used material for wire rope is
High carbon steel
To avoid overreaching, keep ? within the ladder uprights.
Hips
What letter represents current
I
The chemical manufacturer, importer, or distributor, must ensure that each hazardous chemical is labeled tag or marked with what information before it enters the workplace?
Identity of the hazardous chemical, appropriate hazard warnings, and name and address of the chemical manufacture, importer or other responsible party
A volt is the amount of potential necessary to cause one coulomb to produce one ? of work.
Joule
Many fatalities and serious injuries occur each year as a result of the misuse of ?
Ladders
The two types of lay for wire rope are regular lay and ? lay.
Lang
Method of binding two objects together by wrapping ropes around them numerous times
Lashing
Seale wire rope is ? flexible than warrington wire rope but is the least susceptible to wear
Less
Electrical energy can be derived from ? energy
Light
Electrons in the inner orbit have very ? interest in the study of electricity
Little
While trenching up or down a hill, leave the trencher in ? To maintain control
Low gear
Anytime current flows through a conductor, heat is generated and there is also a ? Associated
Magnetic field
? Is the primary source of electrical power
Magnetism
Our primary sources of electric power
Magnetism
Most electrical power is generated by which method?
Magnetism (magnetoelectricity method)
Process of producing electrical energy is known as?
Magnetoelectricity
Head protection is accomplished by?
Making the shell of the hat of a material hard enough to resist the blow & by utilizing a shock-absorbing lining composed of a head-band and crown straps
Fall arrest is ? for climbing structural steel
Mandatory
While number together with a proper fraction
Mixed number
All atoms are to be considered to be electrically ? in nature
Neutral
Isotopes of atoms have different numbers of ?
Neutrons
Can primary batteries be recharged?
No
Do hard hats have a predetermined service life?
No
If the magnetic field and conductor are moved together at the same rate, will there be any electrical energy generated?
No
Class C ansi hard hat:
No electrical protection
The type of rope that has the best resistance to dynamic loading is
Nylon
? Requires eye and face protection, when there is a reasonable probability of preventing injury when such equipment is used.
OSHA
The hazard communication standard was issued by ? to help control chemical exposure on the job
OSHA
Most work of a QEW is performed ?
Off the ground
Measurement of the amount of opposition to current flow that exists in a circuit object
Ohm
the current (I) in a circuit is directly proportional to the voltage (E) applied to the circuit and inversely proportional to the resistance (R)
Ohms Law
Too much weight on the tongue of the trailer = too much weight ?
On the front
How many people can work off an extension ladder at the same time?
One
A ? must be made before any ground is broken
One call
Circuit that has a break in it preventing the flow of current is called ? circuit
Open
Who's responsibility is it to maintain a safe clear zone around the machine?
Operator's
It is the ? responsibilities to maintain a safe clear zone around the machine
Operators
First step in safety with any piece of equipment is to become familiar with?
Operators manual
What covers specific safety, service, and operating information for a piece of equipment?
Operators manual
Electrons in the ? participate in electric current flow
Outer shell
A proton has a mass that is ______________ than the mass of a neutron.
Over 1,836 times
PPE should always be considered as a last resort because ? .
PPE has limitations
Is not considered to be a hitch
Sheepshank
The type of circuit that would have the highest or max current flow is ? circuit
Short
ANSI type 2 hard hat:
Short brim only in the front (bump hat)
Which material is the best semiconductor
Silicon
Electricity is merely stored and is at rest defines what?
Static
"Extend an arm, palm down; then move the hand back and forth" describes the ? hand signal
Stop
Hydraulic overload protection protects the unit from?
Structural overload
When using hook ladder, you must wear full body harness with retractable lanyard secured back to the ?
Structure
If capacity refers to "bare shaft capacity" what must you do to the total weight of buckets, jib, and workers ?
Subtract it from capacities shown on chart
SI stands for ?
System of international units
Sheep shank is intended for ? use because it tends to cause fiber breakage if the bight remains in the rope too long
Temporary
Class A ansi hard hat :
Tested at 2200 V (now class G)
Class B ansi hard hat:
Tested to 20,000 V (now class E)
Device that uses the heating of two dissimilar metals to produce an electrical potential is called
Thermocouple
Increases in the temperature cause a greater transfer of electrons
Thermocouple
The process of joining two dissimilar metals together at a junction and applying heat to produce a transfer of electrons is known as
Thermoelectricity
Transfer of electrons that take place when two dissimilar metals are joined together at a junction and then heated
Thermoelectricity
When performing the preoperational check from the lower controls of a digger, derrick, a qualified electrical workers should operate the unit ? To ensure proper operation
Through the range of all functions
What are the 3 ways that GHS standards states that should be used to provide information about health hazards to employers and their employees?
Through the use of appropriate labels & other forms of warnings, the use of SDS, & employee training
One of the most important training requirements of the GHS standard is ?
To inform employees of the location and availability of the safety data sheets (SDS) file
Matter is the material from which all known physical objects are made (True or False)
True
T/F A battery cell is a single chemical structure composed of an electrolytic solution and two different metallic electrodes.
True
T/F A voltage or potential is present at a common wall outlet, but there is no current flow until some device is connected and a complete circuit exists
True
T/F Centrifugal force tries to pull the electrons away from the nucleus and exactly balances the force trying to pull them toward the nucleus?
True
T/F Each atom will have the same number of protons & electrons?
True
T/F Electrical current flow is caused by a potential difference between two poles
True
T/F Electrons revolve around the nucleus in paths called orbital rings or shells?
True
T/F Failure to follow NOTICE instructions could cause damage to the equipment or cause it to operate improperly
True
T/F Grades of wire rope include traction, steel, mild plow, steel, plow, steel, improved plow, steel, and extra improved plow steel
True
T/F Hooks used on digger derrick synthetic load lines should have throat latching mechanisms.
True
T/F If too much current flows through a conductor, overheating can occur
True
T/F In the DC Theory textbook, the name of the type of current flow that will be used is called electron current flow
True
T/F Insulators can store an electrical charge?
True
T/F Insulators contain seven or eight valence electrons
True
T/F It requires more energy to remove electrons from those items with their outer orbit over half filled to capacity
True
T/F Lang lay ropes have greater flexibility than regular lay ropes.
True
T/F Light is one of the methods that can be employed to force electrons out of their orbit
True
T/F Magnesium is considered a metal because it has two valence electrons
True
T/F Photoemission occurs when photons, striking the surface of a material cause electrons to be released in a vacuum tube. A positive plate placed in the tube will cause electrons to flow to it.
True
T/F Safety statements are one of the primary ways to call our attention to the potential hazards associated with digger derrick operation.
True
T/F Semi conductors are used in the construction of solid-state devices
True
T/F The SI metric has been declared as the preferred system of measurement by the United States Congress.
True
T/F The acronym IWRC refers to wire rope.
True
T/F The static charge is potential electrical energy that will cause the excessive electrons on one body to flow to a body with a deficiency of electrons
True
T/F There must be relative motion between a magnetic field and a conductor in order to generate electrical energy
True
T/F Two factors that affect the speed of current flow are the type of material and voltage?
True
T/F Two people are allowed to work from a hook ladder
True
T/F Voltage is defined as electromotive force, or EMF
True
T/F When two unlike metals are submerged in an electrolyte solution, the metal that accumulates electrons is the negative pole in the metal that gives up electrons is the positive pole
True
T/F electrical current is produced when an electron from one atom knocks electrons from another atom out of orbit
True
T/F materials with a partially filled balance ring, are considered to be chemically unstable
True
With the exception of friction, electrical energy can produce the same effects as those used to produce it?
True
What else can reduce hard hat life?
UV radiation (appears chalky)
Division of any number by zero is known as?
Undefined
Materials with partially filled valence ring are considered to be chemically ?
Unstable
The atomic particles in the outermost orbit of the atom are called ?
Valence electrons
The electromotive force (emf) a potential difference exists when one object has greater or fewer number of electrons than another object is known as?
Voltage
In electricity the unit of power is the ?
Watt
Unit of electrical power is
Watt
The rotation gears are often the ? when pulling an object from a ditch, operating a heavy load with a truck, set up on a slope, or installing a power anchor.
Weakest link
To prevent ropes from unraveling one method is to use a light cording or twine which is called
Whipping
PPE is only effective if the equipment is properly selected, used, maintained, and ?
Worn
Each company must have ? To detail how it intends to meet the hazard communication standard requirements.
Written hazard communication program
Can secondary batteries be recharged?
Yes
Should a qualified employee have the skills to determine the nominal voltage of exposed live parts and MAD?
Yes
A temperature of -15°F represents temperature that is 15° below ?
Zero
A qualified electrical worker should always face the ladder when ?
ascending and descending
? is the smallest particle to which an element can be reduced yet still retain the characteristics of that element
atom
The quantity of protons in an element can be identified by the element's ? .
atomic number
The safety alert symbol appears with most safety statements. It means ? , become alert; personal safety is involved.
attention
If necessary to back up when driving a vehicle, ensure that the ? is operational and use a rearview mirror, or use an observer to signal when it is safe to move.
backup alarm
The chemical source of electricity is best represented in our everyday lives as ?
battery
The chemical source of electricity is best represented in our everyday lives as the ?
battery
The combined use capacities chart is located near the ? .
boom tip
As electrons rotate about the nucleus, ? tries to cause them to fly off into space.
centrifugal force
A hazard communication program requires that all ? At the work site be fully evaluated for possible physical or health hazards
chemicals
? Health effect is long and continuous, and occurs after repeated long-term exposure
chronic
When you come in contact with or hit a ? line, treat it as an electrical strike
communication
For current flow to occur, there must be?
complete path
? Is generally made from a material that contains one or two valence electrons.
conductor
In scientific notation, move the decimal point one place to the right and ?
decrease the exponent by one (2.84 x 10^4 = 28.4 x 10^3)
Qualified employees are those who have been ?
designated by their employer as trained and familiar with the safety related work practices and procedures
Flame resistant clothing is ?
designed to minimize the injury caused by an electric arc
The value of any ? in our numbering system is determined by the position it occupies within a particular number.
digit
When transferring from a hook ladder to a tower, a person may be subject to static shock. To bond onto the grounded tower a worker should ?
do a fast slap with the hand
Three methods of producing light with little heat loss are fluorescence, phosphorescence, and ?
electroluminescence
A solution that causes electrical conduction in liquids is called
electrolyte
Which particle has a negative charge and rotates around the outside of the nucleus of the atom?
electron
An atom is composed of a central nucleus surrounded by revolving ?
electrons
The simplest form of any matter is called ?
element
The one person or agency responsible for providing approved PPE, tools, and hardware that meet regulatory requirements is ? .
employer
To determine the load capacity of the digger Derrick when a boom stage is not fully retracted, use the load capacity for that boom when it is ?
extended
Wire rope strands are laid around a central core of either IWRC or ? .
fiber
With the exception of ? electrical energy can produce the same effects as those used to produce it
friction
When an electric strike warning system alerts an equipment operator of an electrical contact when using a boring machine, the operator should remain on the machine or ?
ground mat
Current flowing through a resistance produces ?
heat
One of the most important training requirements of the hazard communication standard is to ?
inform employees of the location and availability of the SDS file
Pressure can be produced by an electrical current that causes the physical displacement of ? in a crystal
ions
The metric prefix for 10^3 is ?
kilo
When the prefix ? is used, it means multiply the number by 1,000.
kilo
more resistance means
less current (flow) if the pressure stays the same
The process of producing electricity, by moving a conductor through a magnetic field is called ? And is the basis for electrical devices, such as motors, generators, and transformers.
magneto-electricity
The gram is used to measure
mass
The load capacities chart for a digger derrick is normally found ? .
near the lower control station
A designated person, other than the ? may be required to observe the approach distance to exposed lines and equipment
operator
The ? is responsible for maintaining the clear zone around a backhoe
operator
Electrons revolve around the nucleus in paths called
orbits
Valence electrons are those atomic particles in the ? orbit or shell of atoms
outermost
To properly place equipment on a trailer, the weight of the machine should be centered ?
over the trailer axles
A fluorescent lamp combines electroluminescence and ? To produce light
phosphorescence
Light occurs on a television screen when an electron beam strikes a surface covered with ? .
phosphors
The condition in which photons bombard a relatively poor conductor, causing that conductor to free more of its electrons, and become a better conductor is known as
photoconduction
Which material is the best insulator
rubber
When working on a ladder it should, whenever possible, be ?
secured at the top
? Is the preferred method of binding the end of a wire rope to prevent the wires and strands from unraveling
seizing
In a ? Circuit, the current does not flow through the resistance of the full circuit
short
Measuring the lay length of a rope is one way to check a rope for ? .
to stretch
The GVW (gross vehicle weight) = truck weight + digger Derrick and body weight + ? and cargo weight
tools
Knowing how to properly use PPE requires training in hazard awareness and ? .
training of the user
Depending on how a crystal is cut, either a bending pressure or a ? Action can be applied to create a potential difference.
twisting
Electrons in the inner orbits are even more difficult to move than those in the ?, And are of little interest in the study of electricity
valence ring (shell)
Utilities should be "potholed" for ? .
visual verification, when using a boring machine
Power is directly related to the amount of ? and the amount of current flow
voltage
? indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death.
warning
On an electric or gas powered machine ? advises people of areas to avoid when the machine is operating
warning stickers
If the pole being worked on could come into contact with an energized conductor, the Qualified Electrical Worker should ? when handling the pole with hands or tools.
wear insulating gloves
The result of division is known as?
Quotient
What are the two basic uses for a hand line?
Raise and lower tools/equip & rescuing purposes
"Extend the left arm across the body and use the right hand to point at the left hand" describes the ? hand signal
Raise load slowly
When signaling to the operator, if the right arm is extended with the thumb up, it means ?
Raise the boom
The lay of the strands in combination with the twist direction of the wires, results in ? or ?
Regular lay/long lay
Multiplication is a way to express ?
Repeat addition
Fact sheet for a chemical that poses a physical or health hazard at the work site
SDS
Most important responsibilities that the operator of digger Derrick has?
Safety
What must be used as backup protection between hook ladder and a structure?
Safety rope (using tautline hitch)
? stranded rope has all one size wires on the outside layer and another size wires in the next layer.
Seale
Falling from heights is the ? cause of fatalities for electrical workers
Second highest
Batteries are usually divided into primary cells and ?
Secondary cells
The opposition to current flow through a material is called
resistance
System of measurement used most often in the US is referred to as ?
Customary
When photons strike the surface of the material, electrons are released in a vacuum tube
Photoemission
Light has small particles of energy called ?
Photons
Electricity derived from pressure is known as?
Piezoelectric effect
Before towing a trailer, be sure that the trailer and ? are inspected for wear and damage.
Pintle hook
The direction of current flows (negative to positive) is defined as the ? Of the circuit
Polarity
Rope made of ? can float
Polypropylene
The charge of the nucleus of any atoms is always ?
Positive
When places under ? certain crystalline substances will generate minute potential differences
Pressure
The type of battery that cannot be recharged is the ?
Primary cell
Batteries are usually divided into..?
Primary/secondary cells
Employers that have hazardous chemicals must ensure the labels and any other forms of warnings are ? Or readily available in the work area
Prominently displayed on the container
After inspecting trencher, next item of concern is?
Proper loading procedures for transport (trailer)
Hand digging or using ? is required to locate and expose utilities before trenching can begin.
a sucker truck
The flow of electrons through a material is called
current
Electricity derived from pressure is known as the ? effect
piezoelectric
If a digger derrick is equipped with a work platform, the jib capacities chart is normally located ? .
platform
The direction of current flow is defined as the ? of the circuit
polarity
When a voltage is applied to a circuit and current flows through the load, ? Is consumed
power
Five effects electrical energy can produce are heat, light, magnetic fields, chemical action, and ? .
pressure
Never check a hydraulic line that is under pressure for a leak with your hand because the ?
pressurized fluid can penetrate your skin
the two particles that make up the nucleus of an atom
protons and neutrons
If stepping on sharp objects is determined to be a hazard, the employer may require workers to wear ?
puncture-resistant boots
Smaller sub-particles of the proton and neutron are called ? .
quarks
Which of the following is not one of the three main parts of an atom?
quarks
Head protection must do two things :?
resist penetration and absorb the shock of the blow
Short circuit has very little or zero ?
resistance
When transferring from ladder to roof, transfer from the ? of the ladder
side
The proper place for hands when climbing up and down towers that have step bolts is to ?
slide the hands on either side of the main member at the corner
The base of a ladder can be made more stable on grass or gravel by using the ladder feet in the ? position.
spike
Friction is a source of ? electricity.
static
A label producer may provide additional instructions or information that it deems helpful. These additions are known as ? .
supplemental information
Kelvin is used to measure
temperature
