Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Carpentry Level 2 > C-2 Portable Power Tools > Flashcards

C-2 Portable Power Tools Flashcards

You may prefer our related Brainscape-certified flashcards:
Certified Sommelier Exam (CMS 2) flashcards
1
Q

Powder-actuated tools

A

use gunpowder to fire a fastener int either lumber or wood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Low - Velocity powder actuated tool

A

contains a “captive piston” meaning when the cartridge is fired, the force of the explosion acts first on the piston then fires the fastener to drive into meterial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

safety features of LV tools

A
  • captive piston
  • built in device that prevents device from firing
  • two distinct sequential actions required before tool can be fired
  • method for verifying the power level
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

High Velocity tools

A

Direct acting tools they have no pistons and the fastening pins travel at speeds of 150-460 feet per second

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Methods of Propulsion

A
  • impact
  • contact
  • co-acting
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Impact

type of fastener

A

gap between piston and fastener. fastener is against the work surface. tool is fired and piston travels down barrel to strike fastener

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Contact

A

piston is in contact with fastener which then is in contact with work serface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

co- acting

A

piston and fastener are not in contact with work surface

- piston and fastener reach certain speed before hitting work surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Threaded

A

Bolting an object after a fastener has been driven

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

headed

A

for fastening an object to concrete or steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

eyelet

A

for holding lightweight objects such as suspended ceiling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Center Punch test

A

used to determine if a material is suitable for fastening with a powder actuated fastener.
try and punch fastener into material should make distinct dent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Minimum thickness of concrete for fastner

A

must be three times the penetration of fastener

  • must be 75mm from edge of concrete
  • do not fasten on joints
  • spaced more then 3 inches
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Spalling

A

when fastener blows out bits of concrete from point of entry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

how to prevent spalling

A

use washer

  • reduce shank diameter of fastener
  • reduce shank length of fastener
  • reduce cartridge strength
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

things to consider when fastening to steel

A
  • must be at least 50mm or (2”) away from weld or joint
  • must be at least 13mm (1/2”) away from edge of steel
  • fasteners should be installed 1 inch apart
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Gas Powered chainsaw

A
  • most common
  • portable
    disadvantages is fumes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Electric powered Chainsaw

A

sometimes used in enclosed spaces where fumes are to hazardous. not as powerful as gas saws

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Battery powered chainsaw

A
  • use large rechargeable batteries 40v

- can be used when no electric power is available

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Pneumatic chainsaw

A

air driven chainsaw that requires an air compressor. common in bridgework

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Components of chainsaw

A 
starter
throttle lockout 
throttle
fueltank
chain oil tank
bucking spike
chain brake
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Kickback

A

occurs when rotating chain momentarily hangs up on an obstruction and throws saw back on user

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Chain cuts

A

chain still spins after finger is let off throttle keep eyes peeled and stay vigilant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Hammer Drill

A

mechanical action makes the bit vibrate into the concrete

25
Q

Rotary hammer

A

delivered by a piston-like device, delivers blow ten times harder then hammer drill

26
Q

Bull Point bit

A

has sharp point fro breaking up concrete

27
Q

Chisel bit

A

for breaking up concrete and other hard materials

28
Q

scaling or wide chisel bit

A

has wider blade then chisel bit

29
Q

digger bit

A

slightly wider bit used to dig or trench

30
Q

asphalt cutter

A

used win demo hammer when removing asphalt

- operator can make long straight cuts

31
Q

tamping bit

A

can pack down soil or loose gravel

32
Q

Handheld saw

A

saw is brought to the material and held by hand

33
Q

bench top saw

A

saw is mounted on surface

34
Q

walk behind saw

A

operator steers the saw while walking

35
Q

Abrasive disks

A

for handheld concrete or metal cutting disks

36
Q

sub abrasive disks

A

use diamond impregnated metal blades or cubic boron nitride blades. used to cut tile, stone, asphalt, concrete

37
Q

angle grinder

A

used to smooth concrete surfaces and to cut off exposed steel

38
Q

types of metal grinding wheels

A

ferrous metal wheels (cast- iron, steel)
non ferrous metal wheels ( brass, copper, aluminum)
cutt off wheels (zipdisks)

39
Q

size of router

A

two factors ( horsepower of the motor and the maximum shank diameter

40
Q

Collet nut

A

holds the bit securely to the router

41
Q

guid bearing router

A

many bits equipped with bearings that guid bit a certain distance from material.

42
Q

straight flute bit

A

cuts plow or dado in wood

43
Q

Laminate bit

A

used to trim finished edge of laminate counter tops can also be used of edges of wood

44
Q

Chamfer bit

A

buts a 45 degree bevel on edge of board

45
Q

Bullnose bit (Router)

A

used to round the edge of boards and trim

46
Q

Ogee bit

A

ogee bit is used to put an ogee on the edge of a board ogee shape curves one way and then the other

47
Q

dovetail bit

A

using a jig can make a decretive and strong dovetail joint

48
Q

cove bit

A

used to but cove (inside curve)

49
Q

Router bit speed

A 
Bit Diameter      Max Router speed 
up to 25mm -> 24000 rpm
25-32mm     -> 18000 rpm
32-57mm     - > 16000 rpm
57 - 89mm   -> 12000 rpm
50
Q

templates

A

used with routers to cut specific holes

51
Q

guide bushings

A

when using a guide bushing the gap between the router and the outside edge of bushing must be considered when making the template

52
Q

Belt sanders

A

used to smooth faces of wood. measured by the width of of sander.

53
Q

Disk sanders

A
  • used for shaping curved surfaces
  • or sanding edges of wood
  • ## remove old finish
54
Q

orbital sander

A
  • (palm sanders) orbit around 14000 rpm
  • ## use standard sand paper
55
Q

multi master

A

use triangular sanding pad

can reach into tight corners

56
Q

sandpaper

A

three different grits are used when sanding woods
course: 30-50
medium grit : 60-100
fine grit: 120-180

57
Q

Portable biscuit (plate) joiners

A

used when building cabinets shelving or furniture

58
Q

biscuit adjustment size

A

the depth of the saw kerf is reduced for the smaller biscuits and increased for larger

59
Q

double biscuit

A

can be created when working with wood that is at least 1” thick
should be at least 3/16 between material and biscuit

Carpentry Level 2 (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions