line C-2 use portable power tools

Question 1

at what speed does the fastener move in low- velocity

Answer 1

under 100m/s

Question 2

what component does a low- velocity tool have that is not found in high - velocity tool

Answer 2

piston

Question 2

name 3 safety features of the low velocity powdered actuated tool

Answer 2

must be within 7 degrees
2 actions needed before it can fire
captive piston

Question 2

when the powder actuated tool is fired , the piston travels down the barrel to strike the fastener like a hammer , what is the type of propulsion called ?

Answer 2

impact

Question 2

what is the method of contact propulsion ?

Answer 2

the piston is in contact with the fastener which in turn is in contact with the work surface

Question 3

what kind of propulsion is it called when the piston and the fastener are not in contact with the work surface

Answer 3

co-acting

Question 4

what is medium velocity and its speed

Answer 4

when fired , the fastening pin travels 100-150 meters per second

Question 5

what is low velocity and its speed

Answer 5

a powder actuated tool that contains a captive piston , less than 100meters per second

Question 6

what is high velocity and its speeds

Answer 6

they have no pistons and the fastening pin is discharged at a higher velocity greater then 150 meters per second …. speeds of 460 meters per second is not unusual

Question 7

for brass case ( low-velocity) what is the order from strongest to weakest in color and number

Answer 7

grey 1
brown 2
green 3
yellow 4
red 5 ( most common)
purple 6

Question 8

for nickel case ( high-velocity) what is the weakest to strongest from color and number

Answer 8

grey 7
brown8
green 9
yellow10
red 11
purple 12

Question 9

What are the 2 different types of cartridges and the way the are fired

Answer 9

crippled and wadded
center fire and rim fire

Question 10

what are 3 types of fasteners for powder actuated tools

Answer 10

threaded , headed and eyelet

Question 11

when designing fasteners what are the 3 rules manufactures must follow ?

Answer 11

the piston must match the fastener

the fastener washer guide must fit snuggly in the barrel

the proper cartridge must be used

Question 12

when selecting fasteners consider the following what ?

Answer 12

the type of material to be penetrated and the amount of penetration required

Question 13

why would you use additional washers

Answer 13

to prevent shearing of soft material on steel , concrete

Question 14

what are 3 examples of requirements for fastening to concrete or concrete block

Answer 14

concrete cannot be less then 3’’ (75mm) thick

fastening must be 3’‘(75mm) away from edge of concrete

do not fasten into horizontal or vertical mortar joints of concrete

fastenings should be spaced no closer than 3’’ ( 75mm)

Question 15

what are 2 situations to avoid when using a powder actuated tool

Answer 15

do not fasten into spalled areas

do not fasten into pre cast concrete beams or slabs containing pre stressed cables

Question 16

what are 3 things to consider when using a powder actuated tool into steel

Answer 16

-fastners must be at least 13mm(1/2’’) away from edge of steel
- fasteners should be installed at least 25mm(1’’) apart
- steel must be at least 5mm (1/4’’) thick

Question 17

what are 4 basic types of chainsaws

Answer 17

gasoline powered
electric
battery powered
pneumatic

Question 18

what are common chainsaw hazards

Answer 18

kickback
chain cuts
noise
vibration
exhaust fumes
chain breaks

Question 19

what dcbs do chainsaws cut at

Answer 19

90 and 120

Question 20

what are 3 cutting techniques for chain saws

Answer 20

top cut
under cut
plunge cut

Question 21

before you start cutting with a chainsaw what should you consider and check for

Answer 21

for cracks
loose bolts
excessive wear

Question 22

what are common uses of a chainsaw in construction

Answer 22

timber framing demolition cutting rough openings

Question 23

what do chainsaws emit the most

Answer 23

carbon monoxide

Question 24

name 2 safety devices that help prevent injuries resulting from chain breaks

Answer 24

rear hand guard chain catcher

Question 25

what is the only accepted method of starting a chainsaw

Answer 25

with the saw on the ground

Question 26

what is the easiest and safest cut

Answer 26

top cut

Question 27

when undercutting the natural tendency of the saw is to

Answer 27

push away from the wood

Question 28

which cut is the hardest and most dangerous

Answer 28

plunge cut

Question 29

to properly adjust the chain tension the guide bar must be ?

Answer 29

slightly slack

Question 30

what are hammer drills capable of drilling , think diameter

Answer 30

20mm or ( 3/4'')

Question 31

what is the difference between a hammer drill and a rotary hammer drill

Answer 31

the action is delivered by a piston like device and delivers a blow about 10x harder than a hammer drill

Question 32

what diameter can rotary hammer drills get to

Answer 32

50mm ( 2'')

Question 33

what are demo hammers sometime referred to as ?

Answer 33

breakers or jack hammers

Question 34

what are 3 types of cut off saws

Answer 34

handheld benchtop walk behind

Question 35

what are most handheld saws powered by ?

Answer 35

gasoline

Question 36

what are common uses of a handheld cut off saw

Answer 36

control joints cutting concrete asphalt

Question 37

what are benchtop cut off saws commonly referred to as ?

Answer 37

chop saws

Question 38

what are some of the uses of a walk behind cut off saw

Answer 38

cutting concrete or asphalt

Question 39

can walk behind cut off saw cut as deep as 8'' ?

Answer 39

yes

Question 40

what are the 2 types of blades used for cut off saws

Answer 40

abrasive disks and superabrasive blades

Question 41

what are the sizes for many handheld and metal cutting saws

Answer 41

14'' or 16''

Question 42

describe the two difference between abrasive and superabrasive

Answer 42

abrasive is made up of composite material super abrasive is made of diamond impregnated , cubic doron

Question 43

name 2 types ferrous metals

Answer 43

steel and iron

Question 44

what are 3 types of metals grinding / cutting disks use with angle grinders

Answer 44

ferrous metals non- ferrous metal wheels cut off wheels

Question 45

what do the following contain ferrous metals , non-ferrous metals , cut off wheels

Answer 45

ferrous - cast iron , steel non-ferrous- brass copper aluminum cut off wheels - zip disks

Question 46

what does the rpm of router run at commonly

Answer 46

20-30,000 rpm

Question 47

what are the 2 types of routers a there is a 3rd what is it

Answer 47

standard and plunge router laminate trimmer

Question 48

what are the 2 factors the determine the size of a router

Answer 48

the horsepower of the motor and the max shank diameter of the bit

Question 49

what is a collet

Answer 49

is a tapered metal piece that is split

Question 50

what are 6 types of router bits

Answer 50

chamfer dove tail flush cut laminate ogee cove

Question 51

how often should the brushes be checked

Answer 51

every 50 hrs

Question 52

how does a collet work

Answer 52

compresses on bit

Question 53

how do you measure the cutting depth of a bit

Answer 53

distance between cutting edge to outside of bearing

Question 54

what type of sander is used for sanding the edge of a wood floor

Answer 54

disk sander

Question 55

what type of sander is used to fit a preformed countertop

Answer 55

belt sander

Question 56

list 5 types of sanders

Answer 56

disk belt orbital random orbital oscillating

Question 57

what motion should be used with the belt sander

Answer 57

oval with the grain

Question 58

what is the main advantage of a orbital sander

Answer 58

No specialty paper is needed , uses 1/4 or 1/2 sheets of standard 9''x11'' sand paper

Question 59

how many different grits of sandpaper are usually required for finishing

Answer 59

3 course, medium, final

Question 60

what are 3 toxic sanding dusts

Answer 60

yew , redwood, cedar

Question 61

how deep should the cut be when planing a board that is the full width of the plane blade

Answer 61

shallow cuts

Question 62

what is the position of the cutting knife in relation to the planes shoe

Answer 62

cutting knife should just touch straight edge when it rests evenly on rear base/ outfeed

Question 63

describe how to plane wood with mixed grain

Answer 63

shallow cuts

Question 64

how wide to handheld power planes get to

Answer 64

3 1/4

Question 65

what fastening system is a biscuit joint similar to

Answer 65

dowel

Question 66

when edge joining where should the biscuit be located

Answer 66

slightly off center

Question 67

What should be done to determine if the material is suitable for a powder actuated tool

Answer 67

Do a test with a fastener to be used fastener as a centre punch

Question 68

How far must you stay away from a torch or weld when using a powder actuated tool

Answer 68

50mm

Question 69

Which tools use a 2”-6” coring bit

Answer 69

Rotary hammer drills

Question 70

What’s the main difference between abrasive and super abrasive blades

Answer 70

Super abrasive creates less dust

Question 71

Which stationary power tool is a portable power planer similar to

Answer 71

A Jointer

Question 72

When installing sharpening knives what is considered correct

Answer 72

The depth adjustment must be at zero

Question 73

How can you adjust the depth of a cut for different size biscuits when using a biscuit jointer

Answer 73

Depth adjustment knob