Jon's Study Guide
A _______ resistor is made by winding a piece of resistive wire around a ceramic core.
Wire-wound
Powder-actuated fastening systems are used to ___________.
anchor static loads to steel beams
When determining whether a surface is level, you check the
horizontal surface
If the scale on a site plan reads SCALE: 1"=20'-0", then every __________________.
inch on the drawing represents 20 feet, 0 inches.
Files have slanting rows of teeth, and rasps have _____________ teeth.
individual
Installing nail-on device boxes, panel boards, and lighting fixtures in new houses are tasks performed by ___________,
residential electricians
The end grinder is used to ___________.
smooth the inside of materials, such as pipe.
Carbon Film Resistor
-Ceramic rod coated with a film of carbon, change resistance with age or overheated
Metal Film Resistors:
-More Money -Constructed by applying a film of metal to a ceramic rod in a vacuum/determind by metal used to the thickness.
6 methods of producing electricity
. Magnetism . Chemical action . Pressure . Heat . Friction . Light .
Two double wrap chicken hitches are recommended when lifting a load longer than ---- feet
12
An electric circuit has a resistance of 20 ohm. The current is measured to be 6 A. How many volts are applied to the circuit?
120 (E=R/I)
Convert0.86 to a fraction reduce to lowest terms
43/50
Convert 0.75 meters to centimeters
75.0cm move . Two to the right
The second orbit can hold no more than ------ electrons
8
Valence she'll of an atom cannot hold more than ------ electrons
8 elections
Your company has 400 rolls of insulation that must go in 5 different job sites. How many rolls of insulation will go to each site?
80
the try square is a fixed ____ angle
90 degree
A total of 1,478 Feet of cable was supplied for a job. Only 489 feet were installed. There are ________ feet of cable remaining.
989
A trainee must demonstrate knowledge of the hands-on tasks learned in each module. This is referred to as ________________.
A competency-based program
What is a kerf
A cut or channel made by a saw
Under strict safety guidelines, which of the following should be sued to discharge capacitors before working on de-energized circuits?
A safety shorting probe.
A keynote is a number or letter that is used with a leader and arrowhead to identify a specific object; it usually appears in ____________.
A square or a circle
A precipitator is a type of ____________.
Air filter
Pneumatic tools get their power from
Air pressure
The safest hammers are those with heads that are
Alloy and Drop-forged steel
A flow of one coulomb per second past a point is a circuit describes a(n) __________.
Ampere
The strength of an electromagnet is primarily proportional to its _____________.
Ampere-turns
An ___________ is a qualified, licensed person who creates and designs drawings for a construction project.
Architect
_______________, which show the design of the project, include many parts, such as the floor plan, roof plan, elevation drawings, and section drawings.
Architectural plans
Lifting clamps
Are used for lifting steel plates or concrete planked
Objects charged with different type of charges will draw toward each other. This is referred to as __________.
Attraction
Objects charged with different types of charges will draw toward each other. This is referred to as ________.
Attraction
Fixed resistors:
Cannot be changed or adjusted Ex: Composition carbon resistor (high power)
A resistor is made by applying a film of carbon to a ceramic rod.
Carbon film
A resistor made by applying a film of carbon to a ceramic rid is the ------ resistor
Carbon film
A resistor made by applying a film of carbon to a ceramic rod is the _________ resistor.
Carbon film
Movement of entire ions instead of just electrons
Chemical action
The most life-threatening hazards on a construction site typically DO NOT include
Chemical burns
Also called site plans or survey plans, ___________ show the location of the building from an aerial view, as well as the natural contours of the earth.
Civil Plans
An adjustable carpenters tool consist of steel rule that slides through an adjustable head
Combination square
Electrical contractors typically employ ___________.
Commercial electricians
A resistor made from a compound of carbon a resin bonding material is a --- resistor
Composition carbon
What does a "device" do?
Controls power
_____________ materials are either metal or nonmetal materials that cannot be magnetized.
Demagnetic
Electric charges that are moving are ?
Dynamic
If a thundercloud has a positive charge, the current in the lightning bolt will flow from the ________ to the _________.
Earth to the cloud. (-) has electrons (+) not enough
The flow of electrons is?
Electrical current
A magnet that produces a magnetic field as long as current is flowing is called a(n) ___________ magnet.
Electromagnet
Magnetism can be explained in terms of _________ spin patterns.
Electron
Photons are produced when?
Electrons are forced to change to a lower energy level
Electricity is the flow of ___________.
Electrons.
-------- is a substance that Cabot be chemically divided into two or more simpler substances
Element
A(n) ______________ is a side view that shows height.
Elevation drawings
what must happen before any work may be performed in a confined space?
Entry and inspection of hazards
TRUE OR FALSE: A thundercloud cannot contain both positive and negative electric charges.
False
TRUE OR FALSE: In a normal operation, current flows through the hot, grounding, and neutral conductors.
False
TRUE OR FALSE: Matter can exist in only two states: Solid and Liquid.
False (Gas)
Torque wrenches are used when you need to install ___________ that must be tightened in sequence
Fasteners
when cutting with a circular saw, grip the saw handles ________________.
Firmly with two hands
Also called a plan view, a(n) _______ is an aerial view of the layout of each room.
Floor Plan
Magnetic lines of force are called ____________.
Flux
The speed of travel of electricity in a conductor is _________ the speed of light.
Greater than
If a thundercloud has a positive charge, the current in the lightning bolt will flow from the __________.
Ground to the cloud
The neutral conductor is also referred to as the __________ conductor.
Grounded
When using a torque wrench to tighten s bolt and ensure that it is properly aligned you should place one hand on the
Head of the tour we wrench
An example of an unsafe condition on a job site is
Inadequate lighting in a stare way
An electrician who must know how to disassemble and reassemble magnetic motor started is a(n) __________________.
Industrial Maintenance Electrician
Industrial electricians are generally split into two groups: maintenance personnel and ________________.
Installers
Electrostatic charges occur on __________.
Insulators
Materials contains 7 or 8 valence electrons. They resist the flow of electricity rubber, plastic, glass, wood
Insulators
The three substances that form natural magnet are _____________.
Iron, nickel, and cobalt
A static electric charge is an electric charge which _________ moving.
Is not.
Valence she'll
Is the outer shell of an atom
Which of theses statements correctly describes a double-insulated power tool?
It can safely be used in place of a grounded tool.
An advantage of a laser measuring tool is that
It can take longer measurements
Which of the following should be done if an unsafe condition is observed on a job site?
It should be reported to the supervisor.
To locate the north pole of an electromagnet, use the ______ hand rule.
Left
To locate the north pole of an electromagnet, use the ____________ hand rule.
Left
The ____________ defines the symbols used in architectural plans.
Legend
The identification of lines and other symbols on a construction drawing is called the ______________.
Legend
The velocity of AC through a conductor is ___________.
Less than
Which of the following applies in a lockout/tagout procedure?
Lockout/Tagout devices are installed by every authorized employee involved in the work.
Loadstone is the name for a naturally occurring magnetic material that is called ?
Magnetite
------ is made from a combination of atoms ----- is any substance that's has mass and occupies space
Matter
_______________ plans show the layout of the HVAC system.
Mechanical
_______________ are engineered plans for motors, pumps, piping systems, and piping equipment.
Mechanical plans
A resistor made by applying a film of metal to a ceramic rod in a vacuum is the _________ resistor.
Metal Film
On a construction drawing, a dimension is located ____________.
Near the middle of the dimension line
The static charge that accumulates on clothes in a dryer is a(n) __________ charge.
Nuisance
A dimension is a measurement written as a ___________.
Number
The unit of resistance is the ____________.
Ohm
Before awarding a journeyman certificate, a typical electrical apprenticeship program requires 8,000 total hours or _______________.
On-the-job learning
A conductor is made of a material that contains between ___________ valence electrons.
One and three.
A pointed weight attached to a string that uses the force of gravity to make the line hang vertical.
Plumb bob
Proton is ---- charge
Positive
In a precipitator, the dust particles are given a charge. The polarity of the charge is ___________.
Positive (in painting.)
A variable resistor is also called a _________________.
Potentiometer
A variable resistor with three terminals is called a __________.
Potentiometer
The part of an atom that has a positive charge is the ____________.
Proton
At the end of the shift, a confined space entry permit must be ____________________.
Retained for one year.
A(n) ________ _____ shows the shape of the roof and the materials that will be used to finish it.
Roof Plan
What's the best way to protect yourself working next to moving vehicles
Safety vest
The high speed setting on a reciprocating saw is used for _________.
Sawing wood and other soft materials
------are materials that are neither good conductors or insulators they contain 4 valence electrons
Semi conductors
Selenium is a(n) ______________.
Semiconductor
Materials with electrical characteristics that fall between those of insulator sand conductors are considered _____________.
Semiconductors
An insulator is a material containing __________ valence electrons.
Seven or eight.
On the drawing, a project is identified by the ______________ found in the title block.
Sheet title
The north magnetic pole of a compass needle is attracted to the __________ magnetic pole of the earth.
South
A chisel bar can be used to
Split and rip apart pieces of wood
Electrical licensing requirements are set by __________.
States or municipalities (like DOPL.)
Electric charges that are not moving are called __________ charges.
Static
Electric charges that are not moving are
Static charges
Best way of producing electricity with friction is ?
Static electricity
Use only a bandsaw that has a __________.
Stop
TRUE OR FALSE: The grounding prong of a plug should never be cut off or bypassed.
TRUE
The only person allowed on a landing zone are
Tag line tenders
Sharp point at the end of a file is a ?
Tang
Which factor determine the outcome of an electrical shock?
The amount of current
Revisions to the drawing are entered in the revision block and must include ________________.
The date and the initials of the person who made the revision.
Porte-Power cylinders are rated by how much weight they can lift and by _____________.
The distance they can move the weight.
The Alphabet of Lines consists of _______________________________________________.
The line types used on a construction drawing.
Electrolysis is ?
The process of delegating elements electrically.
When resistors are manufactured, the processes are not perfectly exact. Each resistor may be slightly different from the next one. The plus and minus limits of a resistors marked value is called the ____________.
Tolerance
Pliers with smeared teeth that grip flat,square , round or hexagon objects are called --- pliers
Tongue and groove or channel locks
Which of the following is used to step voltage down to lower levels before it reaches a home or office?
Transformer
TRUE OR FALSE: Matter has mass and occupies space.
True
TRUE OR FALSE: Voltage pushes current through a wire, but voltage cannot flow through a wire.
True.
What is the diameter of the fall zone when working around a fork lift
Twice the height of the object being lifted
The static charge sometimes used during spray painting is called a(n) ___________ static charge.
Useful
_________ is also referred to as electromotive force (EMF).
Voltage
On construction drawings, dimensions in feet are always shown in ______________.
Whole numbers
If a circuit is open, current _________ flow.
Will not.
to refer to a particular outlet on a plan, you can refer to the outlet in ______________.
bay C-8
Before you cut through a wall or partition always ____________.
find out what is on the other side
If a person's heart begins to fibrillate due to an electrical shock, the solution is to
have a qualified person use emergency defibrillation equipment
The most common use of the power drill is to
make holes in wood, metal and plastic
A ___________ resistor is made by combining metal with glass and then applying it to a ceramic base as a thick film.
metal glaze
The nucleus of an atom contains ____________ and _________.
neutrons and Protons.
Whens something is plumb, it is
vertically straight
What is the applied voltage if the current in a circuit is 60 amps and the resistance is 10 ohms?
600 Volts
A precipitator is a type of?
Air filter
----- basic building block of the universe
Atom
An element cannot be chemically subdivided into other elements. The smallest amount of an element is an _________.
Atom
Photo voltaic is ?
Devices called solar cells
The ------ orbits the outside of a nucleus
Electron
24 ohm is a standard value for 10% tolerance resistors
False
TRUE OR FALSE: Current always flows from positive to negative.
False
To avoid confusion, the letters I, O, and Q and the numbers 1 and 0 are omitted from the
Gridline system
The latest revision date on a set of construction drawings can be found _____________.
Inside the title block
Man-made permanent magnets retain their magnetism _______ than natural magnets.
Longer
Most common form of electricity
Magnetism
What does the fourth band of color on a resistor indicate?
Multiplier
Electron -----charge is
Negative
The statement current is directly proportional to voltage and inversely proportional to resistance is know as?
Ohms law
What is the proper distance from the feet of a straight ladder to the wall?
One-fourth the working height of the ladder
Bringing a charged test object near the ball of a charged electroscope causes the leaves to move closer. This indicates that the test object charge is the ______ polarity as the electroscope charge.
Opposite
What color tags are on rubber gloves with the highest protection ?
Orange
____________ do not require any power of force to maintain their field.
Permanent magnets
The measure of a material's ability to be magnetized is called __________.
Permeability
A variable resistor is also called a ?
Potentiometer
On the drawing a project is identified by the --- found in the title block
Sheet title
The geographic North Pole of the earth is magnetically a?
South Pole
to clarify information that cannot be shown on the drawings, the architectural and engineering firm will prepare _____________.
Specifications
Architectural, civil and structural engineering, mechanical, and plumbing ____________ may be used on a drawing to tell what material is required for that part of this project.
Symbols
information about the structure or assembly is provided in the
Title Block
Chain falls and come along a are used for ?
To move heavy loads safely, also called a chain block or chain hoist
Why must an arcing device be contained within a special enclosure?
To prevent the ignition of hazardous vapors.
The __________ of a resistor indicates the plus and minus limits of a resistors ohmic value.
Tolerance
T or f the grounded conductor is one of two conductors through which normal circuit current flow.
True
TRUE OR FALSE: An electroscope can be used to determine the polarity of an electrostatic charge.
True
TRUE OR FALSE: Connecting a 150 ohm, 1/2-W resistor to a 9-V supply will damage it.
True
Size of an electron is
0.22 trillionth of an inch in diameter
Current that flows in only one direction is referred to as ___________ current.
Direct
Current that flows in only one direction is called unidirectional. It is also referred to as ____________ current.
Direct.
Voltage is defined as the?
Force that causes electrons to flow ( electric motive force ). (E)
Because of its toughness shackles for the most overhead lifting are made from
Forged steel
Part of the structural plans, the __________________ shows the lowest level of the building.
Foundation plan
The current flow that occurs within lightning bolt flows from _________ to ___________.
From negative to positive.
The ----- of protons in a nucleus determines what kind of element an atom is?
Number
OSHA safety standards for the construction industry are contained in ____________.
OSHA CFR 1926
The semiconductor material used as a coating on copy machine drums is __________.
Selenium
Selenium is a(n) ___________.
Semiconductor
In a(n) _______ circuit there is very little resistance and a large amount of current flows.
Short
A site plan _________________.
Shows the location of the building from an aerial view
The regions formed in the molecular structure of magnetic metals is sometimes called magnetic _________.
domains
Once you have pushed the utility knife blade out, always
lock the blade in the open position
If you walk across a carpet, touch a doorknob and get a shock, the shock was the result of a _________ static.
nuisance
If you walk across a carpet, touch a doorknob and get a shock, the shock was the result of a(n) ______ static charge.
nuisance
The electromagnetic drill is a
portable drill used on thick metal
A(n) ____________ circuit generally occurs when the conductors leading from and back to the power source become connected.
short
Before you begin setting up a pavement breaker for use, make sure that the air pressure is ___________
shut off at the main air outlet
TRUE OR FALSE: Many resistors use bands of color to indicate the ohmic value and tolerance of the resistor. These bands are interpreted by referring to a "color code."
True
TRUE OR FALSE: The NEC provides requirements for safe electrical installations, while NFPA 70E provides guidance for establishing safe electrical workplaces.
True
TRUE OR FALSE: The application of static electricity is used during the manufacture of of sandpaper.
True
TRUE OR FALSE: The grounding conductor is used to help prevent a shock hazard in the event that the ungrounded, or hot, conductor comes in contact with the case or frame of the appliance.
True
TRUE OR FALSE: The north pole of a compass needle points in the direction of the south geographic pole.
True
what does a "resistor" do?
Uses the power (Resistor = anything that would create light or heat.)
------- are of primary concern in electrical theory
Valence electrons
___________ were used in vacuum-tube circuits many years ago and are still used today in applications involving field-effect transistors (FETs) and multi range voltmeter circuits.
Voltage dividers
Electrons can form spin patterns that _________ the magnetic field of the material.
Cancel
------- are made of a material that contains between 1 and 3 valence electrons
Conductors
___________ are solid or dashed lines showing the elevation of the earth on a civil drawing.
Contour Lines
________________ are enlarged views of some special features of a building, such as floors and walls.
Detail drawings
Hydraulic jacks are used when the application calls for _____________.
Extreme force to be applied.
TRUE OR FALSE: Lightning bolts occurs only between the earth and a cloud.
False
TRUE OR FALSE: Low-voltage conductors rarely cause injuries
False
A _______________ is a dashed line on a plan shown an object obstructed from view by another object.
Hidden line
A brick layer lays 649 bricks the first day, 632 the second day, and 478 the third day. The bricklayer laid a total of __________ bricks in three days.
1, 759
An electrical circuit has a voltage of 50 V and a resistance of 5 ohms. What is the value of current?
10 A
If two 10-ohm resistors are connected in series, what is the total resistance of these resistors?
100 ohms
A resistor with color bands of brown, red, silver. What is the resistance and tolerance of the resistor?
1000 ohm 10%
A resistor has color bands of brown, black, red and silver. What is the resistance and tolerance of the resistor?
1000 ohm, 10%
An electrical circuit has a voltage of a 50 V and a resistance of 5 ohm. What is the value of current?
10A (P=E/I)
A room measures 12 feet by 16 feet long. What is the square footage
192 times the lengths together
The number for the words "two thousand six hundred eight-nine" is _____________.
2,689
If the resistance of a circuit is 25 ohms and the current is 10 amps, the power in watts is _________.
250
The Greeks were the first to discover electricity about ____________ years ago.
2500
The effects of static electricity (Electric charges) were noticed by the greeks about ________ years ago.
2500
A resistor has color bands of red, violet, brown, and gold. What is the resistance and tolerance of resistor?
270 Ohm, 5%
The fourth and fifth orbits can hold no more than
32 and that is the max in any orbit
A worker has been asked to deliver 15 scaffolds to each of 26 sites. The worker will deliver a total of __________ scaffolds.
390
What are the minimum and maximum distances (in inches) that a scaffold plank can extend beyond it's end support
4;8
If a circuit has 48 amps of current and an applied voltage of 240 volts, the resistance is _____________.
5 ohms
A circuit has a source voltage of 50V and a current of 10A. what is the power in watts?
500
Most alloy steel chain slings can be used in temps tired up to
500 far
Class 00 rubber gloves are used when working with voltages less than ___________.
500 volts
An electric motor is running on 120 V. The current is measured to be a 2 A. How many ohms of resistance is the motor?
60 (R=E/I)
What is considered low voltage
600 Volts or less
How many amps are there in a current of a circuit if the voltage source is 140 V and the resistance is 2 ohms?
70 Amps (I=E/r)
The normal beating of a heart can be upset by an electrical current as small as ___________ .
75 mA (milliamps)
Wire-wound resistors are often used because they are able to operate at _________ power levels than other resistors.
Higher
----- is the smallest atom and dose not contain a neutron
Hydrogen
Current that flows in both directions is referred to as ________ current.
Alternating
Current that flows in both directions is called bidirectional. It is also referred to as ___________ current.
Alternation
Power lines are often protected by lightning ____________ that exhibit a very high resistance at the normal voltage of the line.
Arrestors
Once you have been given an assignment and all the procedures and safety guidelines are fully understood you should. ?
Assume responsibility for the task without further reminders
The ------ number of an element is the same as the number of protons in the nucleus( the line of force produced my the positive charge extend outward in all directions)
Atomic number
Structural plans may show this large, horizontal support made of concrete, steel, stone, or wood ___________.
Beam
Insulating gloves must be inspected by the user _______________.
Before each use
Alternating current is described as ____________.
Bidirectional
------- states that current flow ( amps ) is produced when an electron from one atom knocks electrons from another atom out of orbit.
Bump theory
How is current measured in an in-line type meter?
By placing an ammeter IN SERIES with the circuit.
What is a c shaped clamp look like
C shaped frame has a metal show at the end of a screw
Almost all construction drawings today are made by ___________.
C.A.D.
Machine tools that are controlled by computers called
CNC
Come slings are also called
Cable pullers
Electrons in orbit around the nucleus of an atom have magnetic fields. Most of the electrons in most materials pair up in such way that their magnetic fields ________ leaving the materials nonmagnetic.
Cancel
Plans used for work that has to do with construction in or on the earth are called ___________ plans.
Civil
A complete circuit is often referred to as a(n) ____________ circuit.
Closed
In order to have current flow, a circuit must be ________.
Closed
Nuisance static charges are more likely to occur when the air is ___________.
Cold
When a guardrail cannot be attached to a building, a solution may be to install a(n) ___________.
Controlled access zone
What is the term for an amount of charge equal to 6.25 x 10(to the 18th power) electrons?
Coulomb
What is the term for an amount of charge equal to 6.25 • 10 18th power
Coulomb
The angular difference between true north and magnetic north is known as the angle of ____________.
Declination
If an object is placed in the field of a strong electromagnet connected to an AC line, the object will be __________.
Demagnetized
Photo conductive
Devices that change resistance with a change of a light
Photo emissive is ?
Devices that include photo diodes, photo teas sisters. Are used to sense light when the speed of operation is imparitive .
Using an adjustable wrench can save time when you are working with
Different sizes of nuts and bolts
A(n) ____________ usually has an arrowhead at both ends with the measurement written near the middle of the line.
Dimension
The regions formed in the molecular structure of magnetic metals by unpaired electrons is sometimes called magnetic ________________.
Domains
Magnetism can be explained in terms of ________ spin patterns.
Electron
The part of an atom that has a negative charge is the ___________.
Electron
------- of an atom contains a set number of electrons. The number of electrons that can be contained in any one orbit or she'll is found by the formula ( 2n second power) n = the # of orbit
Electron orbit
The 3 principle parts of an atom are the ____________, ___________, and _________.
Electron, Neutron, and Proton.
Electrical current is the flow of ____________ .
Electrons
An element of architectural drawings, ___________ refers to the height above sea level or other defined surface.
Elevation drawings
A(n) _________ applies scientific principles in design and construction.
Engineer
Site plans are developed using a?
Engineers scale
The OSHA lockout/tagout rule protects workers from _____________.
Exposure to hazardous energy sources.
In the English system of measure, magnetic strength is measured in a term called ____________.
Flux Density
The strength of a magnetic field is an indication of how many flux lines per square inch there are. This is called ____________.
Flux Density
The strength of a magnetic field is an indication of how many flux lines per square inch there are this is called
Flux density
Shoulder eye bolts
For some angular pulls
A device that helps field worker productivity by providing location and time
G p s
To lift heavy loads, all chain hoists use a ---- system
Gear
OSHA CFR 1910 is the standard for _____________
General industry
Which style of hook is designed to be used in alloy steel chain slings
Grab hook
Punches are used for
Impact with a hammer to indent metal before you drill a hole, to drive pins or to align holes in two parts that are mates.
An opposition to current flow that occurs in alternating current circuits is called ___________.
Impedance
An opposition to current flow that occurs in alternation current circuits is called ___________.
Impedance
The precipitator uses a high-voltage DC power supply to provide a set of wires with a positive charge and a set of plates with a ___________ charge.
Negative
Neutron has --- charge
No charge
Neutrons and protons form and make the -----
Nucleus
The unit of resistance to current flow is the _________.
Ohm
The statement "current is directly proportional to voltage and inversely proportional to resistance" is known as ___________ law.
Ohm's
The statement "in a DC circuit, the current is directly proportional to voltage and inversely proportional to resistance" is known as __________ law.
Ohm's
Valance electrons are contained in the ___________ shell.
Outermost
Schematic drawings called __________ show all the equipment, pipelines, values, instruments and controls needed to operate a piping system.
P&ID's
A(n) __________ magnet is a magnet that retains it's magnetism without any applied power.
Permanent
Producing electricity with lights is called
Photons - massless particles of pure energy
All of the following are usually considered confined spaces EXCEPT a _____________.
Pipeline.
____________ ________ show the layout for the plumbing system that supplies hot and cold water, for the sewage disposal system, and for the location of plumbing fixtures.
Plumbing Plans
The term __________ __________ refers to both water supply and all liquid waste disposal.
Plumbing plans
A detail grinder uses _________ to smooth and polish intricate metallic work.
Points
Production of electricity by ------ involves the sticking, bending twisting of certain crystals. The effect is called Piezo electric effect
Pressure
The atomic number of an element is the number of ____________ in the nucleus.
Protons
The atomic number of an element is the number of ________ in the nucleus.
Protons.
Protons and neutrons are made of smaller particles called ?
Quarks
If you notice a discrepancy in the plans, notify the foreman, who will write up an _________, explaining the problem and noting the date and time.
R.P.I.
Ohms law states that the resistance of a circuit is equal to the ?
R= e/I voltage divided by the current
To clarify any discrepancies in the plans, the foreman should use a(n) ______________.
RFI
The maximum load weight that a sling is designed to carry is the
Rated capacity
The first step when using a pneumatic ally powered nailer for the first time you should
Read the directions of the Manuel
The measure of a material's resistance to being magnetized is called _________________.
Reluctance
The measure of a material's resistance to magnetism is ______________.
Reluctance
The law of charges states that like charges _________ and opposite charges ___________.
Repel, Attract
The law of charges states that like charges __________ and opposite charges ____________.
Repel, Attract.
An important use of a hot stick is to ________________.
Replace fuses
The amount of magnetism left in a material after the magnetizing force has stopped is called _____________.
Residual magnetism
Opposition to a current flow is called ____________.
Resistance
Opposition to current flow is called ____________.
Resistance
The title block generally contains ____________.
Revision blocks
A variable resistor with two terminals is called a _____________.
Rheostat
A variable resistor with two terminals is called a ______________.
Rheostat
Protecting objects from lightning strikes can be done by connecting a conductor from the earth to a piece of metal usually mounted on the roof of a building. The piece of a metal is called a lightning __________.
Rod
Which of the following describes the standard in NFPA 70E?
Safe work practices must be applied when working on or near exposed energized parts.
The ___________ of a drawing tells the size of the object drawing compared with the actual size of the object represented.
Scale
To do accurate work, you need to know whether the ____________ measure to the exterior or the exterior of the object.
Scale
A(n) __________ is a one-line drawing showing the flow path for electrical circuitry.
Schematic
Clutch drive and slotted are types of
Screwdrivers
A(n) ______________ is a cross-sectional view that shows the inside of an object or building.
Section Drawing
_______________, together with the set of specifications, detail what is to be built and what materials are to be used.
Section Drawings
The semi conductor material used as a coating for copy machine drums are?
Selenium
The two most used semi conductors are ?
Silicon , germanium
NFPA 70e provides practical guidance in
Solvents and toxic vapors
The material used for the Ella would be found on the ---plan
Structural
The __________ ________, which are used to support the architectural design, include the general notes, a foundation plan, a roof framing plan, and structural section drawings.
Structural Plans
Code books and specifications often include __________ and their meanings.
Symbols
Points are
Teeth on the gripping part of a wrench and I referred to as the number of teeth on a saw
The metric system is used to measure length,weight,volume,and ?
Temperature
TRUE OR FALSE: Earth contains magnetic poles.
True
TRUE OR FALSE: Lightning is the result of static charges built up in clouds that contain a large amount of moisture.
True
TRUE OR FALSE: Lightning rods provide an easy path to ground for current.
True
TRUE OR FALSE: Magnetic lines of force flow from one pole of a magnet to the other pole.
True
TRUE OR FALSE: The value of a resistor can often be determined by the "color code."
True
A resistor whose values can be varied over a range of values is called a _________ resistor.
Variable
A live-dead-live test is conducted in order to ____________________.
Verify that a circuit is de-energized.
The unit of electrical "pressure" that causes current to flow is called the __________.
Volt (pressure)
What Is defined as the driving force that makes current flow in a circuit ?
Voltage
Electron flow theory states that current flows from the most negative point in the circuit to the most __________.
positive
For safety's sake, industrial screwdriver blades are made of a
tempered steel
Pliers should not be used on a nut or bolt because
they will round off the edges of the hex head.
When using a saber saw, avoid vibration by ____________.
using a clamp or vise to hold the work
The third orbit can hold no more than ----- e
18
Some manufacturers suggest that each time you use a pneumatic nailer the air inlet needs
A few drops of oil
Electrical Effects are
Magnetism , chemical reactions,pressure, heat, light
The most common method of producing electricity is ___________.
Magnetism.
Lodestone is a name for a naturally occurring magnetic material that is also called ________________.
Magnetite
In the English system, the total force producing a magnetic field is the ___________.
Magnetomotive force.
Grid lines are used too ?
Make it easy to refer to specific locations on the plan
A resistor made by applying a film of metal to a ceramic rod in a vacuum is the ---- resistor
Metal film
Ball pen hammer is used for
Metal working, preening, use with chisels and punches, used to rudimentary stress in the weld by peeking
----- smallest part of a compound and are not an element
Molecules
What must be included with every shipment of a hazardous substance and made available to workers in the job site?
Msds
A variable resistor that has a shaft that rotates more than one rotation is called a ________ variable resistor.
Multiturn
Because an electron is ---- the lines of force come in from all sides
Negative
.A resistor made by winding a piece of resistive wire around a ceramic core is the _______ resistor.
Wire wound