Line F Flashcards by Benjamin Douglas

Tool steel is different from mild steel because it has a higher content of

carbon

pig iron

manganese

silicon

carbon

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Stainless steel is an alloy of iron, nickel and

zinc

chromium

cobalt

tool steel

chromium

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Because of its low electrical resistance, lightness and corrosion resistance, electrical transmission lines are often made from

aluminum

brass

copper

stainless steel

aluminium

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Tensile strength of a material is the ability to withstand forces that tend to

pull it apart

crush it

bend it

wear it down

pull it apart

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If stored in moist conditions, almost all ferrous metals are subject to

rot

rust

dissolving

shrinkage

rust

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Brass is an alloy of zinc and

iron

nickel

copper

aluminum

copper

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Ferrous metals are metals that contain at least 5%

zinc

lead

iron

carbon

iron

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If galvanized metals are allowed to sit in water for any length of time they will

dissolve

rust

discolour

lose their coating

discolour

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It is acceptable to drill through an engineered beam if you have to provide access for a conductor to pass through

False

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Pressure treated wood is safe to cut without a dust mask.

False

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Before cutting into a finished surface, it is important to:

Confirm the location

Make sure your installation does not conflict with other components in the assembly.

Plan ahead

All choices are correct

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OSB is made by compressing a combination of wood strands and glue.

True

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It is OK to drill a hole through a TJI.

True

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No two pieces of wood are alike in either colour or markings

True

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Wood is considered a good conductor of heat

False

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Wood can be reused when making alterations.

True

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Identify the type shake shown below.

ring shake

heart shake

star shake

cup shake

star shake

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Identify the type warp shown below.

cup

bow

twist

diamonding

crock

kink

crock

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Identify the type warp shown below.

cup

bow

twist

diamonding

crock

kink

bow

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Knots are the result of

accumulations of tannins and resins

the natural formation of branches from the main stem of a tree

abnormal hardening due to a leaning trunk

insect infestation

the natural formation of branches from the main stem of a tree

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Identify the type warp shown below.

cup

bow

twist

diamonding

crock

kink

twist

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Identify the type warp shown below.

cup

bow

twist

diamonding

crock

kink

cup

cup

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The thickness of sheet metal is designated by

a letter

its weight per square foot

its thickness in thousandths of an inch

a gauge number

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What colour will copper have when oxidized?

red

black

yellow

green

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When a metal combines with oxygen and a film is formed on its surface, the metal has

tempered

annealed

oxidized

alloyed

oxidized

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Alloys are composed of two or more elements, at least one of which must be

iron

metal

carbon

ferrous

metal

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What is an advantage of using wood in the electrical industry?

Its ability to withstand high heat

Its ability to conduct electricity

It is strong and easy to fasten to

Its ability to decay when kept moist

It is strong and easy to fasten to

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When working with pressure treated lumber a worker should always:

Refer to the MSDS

Wear appropriate PPE

Make sure waste is properly disposed

All choices are correct

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Alternate layers of wood in the form of a sheet is known as

OSB

Plywood

Rough cut

An Engineered Beam

Plywood

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When cutting pressure treated lumber you should?

Wear hearing protection

Always use a chainsaw

Check the MSDS and wear the appropriate PPE

Wear safety glasses and check the OSB

Check the MSDS and wear the appropriate PPE

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A standard sheet of plywood that is 4 layers in thickness is:

5/8” Thick

1” Thick

3/4” Thick

1/2” Thick

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Plywood is a common material used to provide backing for electrical equipment to be securely attached to.

True

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Identify each of the structures shown in the illustration below

inner bark

pith

sapwood

outer bark

cambium layer

annual or growth rings

heartwood

rays

a. inner bark. e. annual or growth rings
b. pith. f. sapwood
c. cambium layer. g. rays
d. outer bark. h. pith

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Identify the type shake shown below.

ring shake

heart shake

star shake

cup shake

heart shake

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Identify the type warp shown below.

cup

bow

twist

diamonding

crock

kink

kink

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Identify the type warp shown below.

cup

bow

twist

diamonding

crock

kink

diamonding

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Identify the type shake shown below.

ring shake

heart shake

star shake

cup shake

cup shake

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Sap-stain fungi cause discoloration in wood but have no effect on the structural strength of wood

True

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Identify the type shake shown below.

ring shake

heart shake

star shake

cup shake

ring shake

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Bowing is the result of

the difference in shrinking rates on the tangential and radial planes

the inclusion of reaction wood in a board

spiral grain

improper drying techniques

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For metric fasteners, even though the thread pitch remains the same, an increase in diameter will change the thread from coarse to fine.

True

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The nominal size of bolts includes the following two measurements

thread diameter and thread length

bolt shank diameter and bolt head size

bolt shank diameter and penetration length

crest diameter and root diameter

bolt shank diameter and penetration length

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The initials UNF, as used with thread series, means

Universal Number Form

Unified Neutral Finish

Universal National Fine

Unified National Fine

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Thread pitch can be described as the

angle of the thread flanks

distance between adjacent threads

depth of the thread groove

thread slope in relation to the axis of the bolt

distance between adjacent threads

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In “½ - UNC 2A”, the UNC indicates

thread size

pitch

imperial thread system identification

nominal thread diameter

imperial thread system identification

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In ½ - 13 UNC 2A, the “½” indicates

threads per inch

actual thread

thread series

nominal thread diameter

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If a larger screw can be used, stripped internal threads can be repaired

by drilling and re-tapping the hole

by re-tapping using a finer thread pitch

by re-tapping using a coarser thread pitch

using a self-tapping nut

by drilling and re-tapping the hole

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The trade name for thread inserts is

Jiffy Thread

Thread-Coil

Heli-Thread

Heli-Coil

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The stamping ¼ - 20 on a die indicates the

major diameter and number of threads per inch to be cut

inside diameter and pitch of thread to be cut

minor diameter and thread angle to be cut

root diameter and effective length of thread to be cut

major diameter and number of threads per inch to be cut

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The particular drill used to produce a hole for tapping is called a

bottoming drill

die drill

tap drill

tapered drill

tap drill

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The tool used for cutting external threads is the

tap

die

thread chaser

screw cutter

die

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The three styles of tap are the

taper, plug, bottoming

taper, bottoming, straight

straight, tapered, notched

plug, taper, end

taper, plug, bottoming

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If a stud requires that you drill a hole to receive a stud-extractor, the hole should be approximately

3 mm (1/8”) in diameter

3/4 the length of the stud

1/2 the diameter of the stud

1/4 the length of the stud-remover

1/2 the diameter of the stud

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Damaged external threads may be repaired with a

threaded tap

Heli-Coil

thread chaser

thread gauge

thread chaser

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A machine screw that has a slight taper at the threaded end and a notch or groove cut into its threads is a

self-drilling screw

self-tapping screw

sheet metal screw

self-drilling, self-tapping screw

self-tapping screw

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Which machine screw number indicates the largest diameter?

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A slotted hex nut is designed to be used with a

lock washer

cotter pin

self-tapping screw

cap screw

cotter pin

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A stover nut is a type of

jam nut

nut used with stove bolts

castellated nut

self-locking nut

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The fastener in Figure 1 is

a cap screw

an oval head screw

a flange bolt

a square head bolt

a flange bolt

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Three radial slash marks embossed on the head of a cap screw indicate it is

a grade 5 bolt

a grade 3 bolt

made of aluminum

national coarse

a grade 5 bolt

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A threaded fastener that is used with a nut is called a ___________ .

bolt

screw

cap screw

stover

bolt

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A threaded fastener is called a bolt when it

is larger than ¼”

is used with a nut

is made with a UNC thread

has a hex head

is used with a nut

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The groove cut in a shaft to accommodate a key is a

clevis

key-way

shear pin

lock washer

key-way

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A semi-circular key made from round stock and cut in half is a

taper

clevis

woodruff

spring

woodruff

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Which of the pin types listed below is used to align machinery parts during assembly?

taper pins

headed pins

clevis pins

spring-locking pins

taper pins

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A pin that is used to prevent damage to machinery from overloading is a

spring pin

shear pin

split pin

convenience pin

shear pin

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The pin illustrated in Figure 1 is a

Quik-lock pin

bent-leg pin

ring pin

spring-locking pin

Quik-lock pin

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To fasten items to drywall where no backing exists, you would use

a toggle bolt

a lag bolt

an expansion bolt

a carriage bolt

a toggle bolt

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The screw in Figure 6 has a

plain shank

reduced shank

no shank

twist shank

plain shank

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What is considered the most widely used nail mainly used for framing buildings?

Common nail

Box nail

Ring nail

Spiral nail

Common nail

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The anchor shown in Figure 7 is

a self-tapping screw

an expansion shield

a wedge anchor

a plastic anchor

a wedge anchor

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Machine screws are available in diameters up to

1/8”

1/4”

3/8”

1/2”

3/8”

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An escutcheon pin

has a large, flat head

is double-headed

is actually a brad head

has a polished, dome-shaped head

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The nails used to attach drywall have a head that is

tapered to a thin edge

double-headed

larger than a roofing nail

similar to a finishing nail

tapered to a thin edge

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Galvanizing a nail increases its resistance to

shear forces

withdrawal

bending

splitting

withdrawal

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Galvanizing a nail increases its resistance to rust or corrosion

True

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The wood screw in Figure 5 has a

round head

oval head

flat head

pan head

pan head

What fittings are used to join pipe in a straight line?

Bushing

Coupling

Close nipple

Cap

Coupling

Pipe schedule refers to

length

wall thickness

thread pitch

internal threads

wall thickness

Where is a pipe thread joint compound applied?

External threads, from the start to the last threads on the pipe

Internal threads, from the start to the last threads on the pipe

Internal threads, starting at the second thread including the perfect threads

External threads, starting at the second thread

Pipe thread compounds are used to

make installation easier

allow for misalignment of parts

increase torque required to tighten

lubricate and seal

The taper of a pipe thread is for

ease of starting

smoother threading

alignment

sealing

Pipe is sized by

inside diameter

outside diameter

nominal diameter

wall thickness

nominal diameter

One disadvantage of plastic tubing is that it

is difficult to cut

is relatively heavy to handle

will not stand excess heat

cannot be used for corrosive liquids

will not stand excess heat

An inverted flared tube fitting has an external thread on the

body

nut

sleeve

tube

nut

What colour marking is used to identify type L copper pipe?

Green

Black

Blue

Red

Blue

The colour marking is used to identify type L copper pipe is green?

False

Tubing size is designated by the

actual inside diameter

nominal inside diameter

actual outside diameter

nominal outside diameter

actual outside diameter

Compression fittings may be used on soft plastic tubing providing that the tubing is

pre-heated

flared

fitted with an internal sleeve

wrapped with Teflon tape

fitted with an internal sleeve

What flare fitting is better suited to hydraulic fittings and steel pipe?

SAE single flare

inverted flare

compound flare

triple flare

inverted flare

Steel brake tubing is constructed with

stainless steel

copper cladding

two layers and a galvanized finish

double walls and tin plating

Rolls of different sizes of the same type of tubing should be stored

in one pile

in ascending order

in separate rooms

on the tops of the piles

in ascending order

Black steel pipe fittings should be stored in an area that is free from

sunlight

excessive heat

oil or grease

moisture

What would be an acceptable practice when storing pipe, fittings and tubing?

Store heavy fittings on the lower shelves

Store copper and steel elbows in the same bin

Do not store copper tubing coils on their sides

Store steel pipe vertically straight up

Store heavy fittings on the lower shelves

Tubing supplied in straight lengths should be stored

in stacks

in bundles

like pipe

on a hook

like pipe

Partially used rolls of tubing should always be stored

with the tubing tied

away from the rest of the tubing

on the top of unused rolls

with the fittings

on the top of unused rolls

Pipe stored lying flat should be in racks that protect the pipe from

sliding

rolling

sagging

light

rolling

To permit a threaded fitting to be attached to a component without having to rotate the hose, you need a

left and right hand fitting

tapered thread fitting

self threading fitting

swivel end fitting

The ability of a hose to withstand high pressure will be increased if constructed with

solid rubber

wire braid

canvas

fabric

wire braid

Notches on high pressure fittings also indicate the

length of the hose

length of the skive

outside diameter of the hose

inside diameter of the hose

length of the skive

Socket less hose fittings are made more secure with the addition of

clamp

sealant

skive

coat of oil

clamp

To find out which materials will or will not affect a hose you must

check the colour coding

read the manufacturer’s specifications

compare the old hose

test a section yourself

read the manufacturer’s specifications

The flare angle of a JIC flare fitting is

17°

27°

37°

47°

37°

Hoses that must withstand a negative pressure (suction hoses) are prevented from collapsing by

screen liners

mesh exteriors

interior steel wire coils

several thin layers in their walls

interior steel wire coils

In order to prevent the flow of a pressurized fluid when disconnecting a quick-coupler, you must install the

coupler on the pressurized side of the connection

nipple on the pressurized side of the connection

pressure reducer in front of the fitting

shut off valve in front of the coupling

coupler on the pressurized side of the connection

Over-penetration of glue can result in a joint that is

swollen

too tight

starved

shrunken

starved

The use of contact cement requires

clamping for four hours

heating to 100 C

a hardener to set

no clamping

Which of the following is least moisture resistant?

polyvinyl acetate

epoxy

urea resin

silicone

polyvinyl acetate

Which of the following is true when using silicone?

No special precautions are required due to the nontoxic nature of the material.

Use only in well-ventilated conditions and do not ingest the material or leave it on the skin.

A respirator, gloves and goggles should be worn at all times.

Do not operate power equipment near curing silicone adhesives due to the flammable nature of the fumes.

Use only in well-ventilated conditions and do not ingest the material or leave it on the skin.

The main difference between adhesives and sealants is that sealants typically have higher strength and lower elongation than adhesives do.

False

What is often added to silicon for use in high moisture areas?

elongation compounds

inert filler materials

mildew-resistant chemicals

wax

mildew-resistant chemicals

Which of the following is used to prevent moisture or air from entering the joint between a doorframe and the siding?

polyvinyl acetate

polymerizing adhesives

aliphatic resin

silicone

Which adhesive accepts stain more readily?

polyvinyl acetate

white glue

aliphatic resin

silicone

aliphatic resin

The thread pitch for the metric system designates the

threads per centimetre

distance between adjacent crests measured in centimetres

threads per millimetre

distance between adjacent crests measured in millimetres

The location of the grade marking on a bolt is on the

bolt head

tip

shank

key-way

bolt head

Which type of pin has a hollow center, is split lengthwise, and is chamfered at both ends?

cotter

pivot

taper

spring

Bolt washers that are used to prevent the nuts from coming loose are

plain washers

flat washers

Woodruff washers

split-ring lock washers

Large fittings should always be stored

first

up high

where they will be needed

down low

The number “-16” indicates an inside diameter of

½”

1”

1½”

2”

1”

Two types of threaded fittings used to connect hoses together or to other fittings are

left and right threaded

external and internal

low and high pressure

straight and elbow

external and internal

Which type of tube fitting is least able to withstand heavy vibrations?

SAE flared

solderless compression

inverted flared

double compression

solderless compression

To block off the end of a steel pipe you should use a

cap

plug

drop

reducer

cap

solid steel pins with a slight chamfer at each end are known as

clevis pins

tapered pins

cotter pins

dowel pins

Thread pitch is specified in

taper per foot

threads per inch

threads per foot

inches per thread

threads per inch

Metric thread pitch is given in

metres

millimetres

threads per millimetre

inches

millimetres

When starting a thread in a hole, use the

taper tap

plug tap

end tap

straight tap

taper tap

Thread inserts are not only used for repairing damaged threads, but also to

provide a strong thread for soft material

make the threaded hole deeper

provide a coarser pitch thread

plug holes

provide a strong thread for soft material

Castellated or slotted nuts are prevented from turning on the bolt by

friction

their oval shape

cotter pins

headed pins

cotter pins

To run a branch line off a piping line, one would use

an R.H. coupler

a split fitting

a tee fitting

an elbow

a tee fitting

What type of copper tube is available in hard only?

DWV

Fittings stored in their shipping packages should be placed on shelving so that you can see the

contents

labels

top of the package

quantity of each package

labels

Fittings should be stored in groups according to their

size and type

shape

price

weight

size and type

The designation “-10” on the side of a hydraulic hose indicates the hose

is able to withstand 10 atmospheres of pressure

has an inside diameter of 10/16”

has an inside diameter of 10 mm

is rated for 10 psi

has an inside diameter of 10/16”

The angle between thread flanks is usually

60°

65°

70°

75°

60°

The major diameter of a screw thread is measured at the

crest

root

pitch

helix

crest

When first using a thread die you should adjust it so that it cuts threads

as deeply as possible

as shallow as possible

when turned backward

that are UNF

as shallow as possible

To reform internal threads and bring the threaded hole back to its original size you could use

a Heli-Coil

an anti-seize fluid

a tap extractor

a self-tapping coil

a Heli-Coil

If a cap screw is broken flush to the surface of the threaded hole you may be able to extract it using

a screwdriver

a wrench

anti-seize fluid

a stud extractor

When starting to cut threads with a die you should make sure that

the die is level

the widest part faces away from the rod

all cutters make contact with the rod

all the force is applied to one handle

all cutters make contact with the rod

The tool illustrated in Figure 1 is used to

break the tang on a Heli-Coil

remove a broken tap

clean the flutes of a tap

measure the diameter of a threaded hole

remove a broken tap

Plug taps are tapered along their length for approximately

half their length

1 thread

5 threads

10 threads

5 threads

A hole drilled only part way into a material is known as a

short hole

through hole

part hole

blind hole

The correct procedure for cutting threads with a tap or die is to

turn continuously in one direction

turn clockwise until you finish the thread, then return all the way to the starting point

advance the tool one or two revolutions, then back up half a turn and repeat throughout threading procedure

turn as fast as possible so the cuttings will fly away from the tap or die to prevent thread damage

advance the tool one or two revolutions, then back up half a turn and repeat throughout threading procedure

A threaded fastener that has no head and is threaded at both ends is known as a

cap screw

double bolt

thimble

stud

A threaded fastener that has screw threads on both ends and has no head is referred to as a

double-nut bolt

stud

machine screw

cap screw

stud

The machine screw head style illustrated in Figure 3 is

a socket head

a pan head

a round head

an oval head

an oval head

A thread gauge is used to determine

thread angle

thread pitch

thread diameter

the slope of the thread faces

thread pitch

Cotter pins are used to lock

stover nuts

jam nuts

castellated nuts

pall nuts

castellated nuts

Grade markings as illustrated in Figure 2 make reference to the bolt’s

thread pitch

tensile strength

diameter

head style

tensile strength

Convenience pins are available in two common types: Quick-lock pins and

grooved pins

taper pins

Woodruff pins

spring-locking pins

To prevent nuts or bolt heads from damaging machinery parts, you should use

mild steel bolts

castellated nuts

flat washers

key-ways

flat washers

Taper keys require a key-way that is cut

in a semicircle

only on the shaft

at a slight taper

deep enough to accept the gib

at a slight taper

The numbers 8.8 embossed on the head of a metric cap screw indicate the

diameter in millimetres

length in centimetres

wrench size in millimetres

tensile strength of the material

One common method for securing a gear or pulley is to use a

cotter pin

key

spring-locking pin

toothed washer

key

Castellated or slotted nuts are prevented from turning on the bolt by

friction

their oval shape

cotter pins

headed pins

cotter pins

The type of pin designed to align machinery parts during assembly is the

clevis

cotter

headed

dowel

The nail in Figure 1 is a

twist nail

ring nail

casing nail

roofing nail

twist nail

What bolt has a spring-loaded foldable wing nut?

T nut

Expansion anchor a squared end

toggle bolt

wedge sleeve anchor

toggle bolt

The bolt with a tamperproof head is called a

lag bolt

carriage bolt

stove bolt

lock bolt

carriage bolt

The nail in Figure 2 is a

finishing nail

casing nail

flooring nail

hardboard nail

casing nail

What large wood screw has square or hexagonal head?

Lag bolt

Machine bolt

Wafer screw

Self tapping screw

Lag bolt

The ring nail that is used to attach drywall is

made of silicon bronze

heat-treated to prevent rust

galvanized and has a thin head

heat-treated to make it stiffer

galvanized and has a thin head

Casing nails used on exterior work should be

set below the surface

heat-treated

blued

galvanized

What are four shapes of screw heads?

Round, square, hexagonal and flat

Flat, oval,hexagonal and cup

Flat, pan, oval and round

Round, dish, saucer and cup

Flat, pan, oval and round

Cabinet components are nailed together with

spiral nails

ring nails

common nails

finishing nails

What type of fastener is designed to hold in concrete with lag bolts?

Expansion shield

Lead plug

Fiber plug

Toggle bolt

Expansion shield

Duplex nails are used for concrete formwork because of their

tremendous holding power

shear resistance

ease of removal

thin shanks

ease of removal

The nail most susceptible to rusting is the

galvanized nail

casing nail

concrete nail

ring nail

concrete nail

The common nail

has a flat head and sharp point

has a bright finish to resist corrosion

has a bulbous-shaped head and a sharp point

is mainly used for interior work

has a flat head and sharp point

If the nut end of a bolt is inaccessible during assembly, you can use a bolt with a

lock nut

hex nut

T-nut

scalloped nut

T-nut

Which method do you use to hold adhesive and epoxy anchors in place?

mechanical fastening methods

heat-treating methods

chemical-curing methods

powder-actuated methods

chemical-curing methods

Standard PVC conduit is known as

schedule 10

schedule 30

schedule 40

schedule 80

schedule 40

The angle of the flare used with an SAE flare fitting is
Question 1 options:

37°

45°

47°

60°

45°

Double compression fittings compress the tubing against the

two sleeves

sleeve and the nut

nut and the tapered seat

machined seat and the body

sleeve and the nut

Plastic tubing cannot be subjected to

high vibrations

low pressure

low temperatures

high temperatures

One disadvantage of copper tubing is that it

will corrode easily

becomes softer with use

is subject to work hardening

is difficult to solder

is subject to work hardening

If soft copper tubing is subjected to repeated bending it will become

softer and weaker

stronger

hard and brittle

annealed

hard and brittle

Before tightening a double compression fitting the tube must be

fully inserted

soldered

slipped together one piece at a time

tightened before being installed

fully inserted

Compression fittings used on plastic tubing require an additional part located

on the exterior of the tubing

over the end of the tubing

at the back of the nut

inside the tube

Rolls of tubing should be stored on

pegs

edge

racks

their sides

High pressure fittings are identified by

letters

numbers

notches

colours

notches

Hoses that must be connected and disconnected frequently can be fitted with a

swivel coupler

shut off valve

quick coupler

reusable connection

quick coupler

To be sure that a new hose will not be affected by the substances it will contain you must

test a short section of the hose

make sure it is the same colour as the old hose

increase the pressure

read the specifications

The size of a hose is determined by measuring its

pressure rating

outside diameter

wall thickness

inside diameter

Which of the following is an example of a polymerizing adhesive

polyvinyl acetate

aliphatic resin

urea resin.

contact cement

urea resin.

Which of the following is flammable?

polyvinyl acetate

solvent base contact cement

aliphatic resin

water base contact cement

solvent base contact cement

To cure properly, most adhesives require a temperature of about

14°C

20°C

27°C

30°C

20°C

A solvent base contact adhesive

sets more slowly than a water-base contact cement

forms a bond that is not heat-resistant

is not flammable

is not toxic

forms a bond that is not heat-resistant

Which of the following would provide a flexible water tight seal with mildew resistance

polyvinyl acetate

urea resin

epoxy

silicone

Some glue can be used to fill gaps in loose-fitting joints.

True

What is often added to silicon for use in high moisture areas?

elongation compounds

inert filler materials

mildew-resistant chemicals

wax

mildew-resistant chemicals

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Line F Flashcards

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