Jon's Study Guide

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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


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