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Welder 1 > 120101g > Flashcards

120101g Flashcards

1
Q

How much of the wheel should the guard on a bench grinder cover?
A) 1/4
B) 1/3
C) 1/2
D 2/3

A

D) 2/3

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2
Q

The gap between the tool rest and the grindstone on a bench grinder should never be more than?
A) 1.6mm or 1/16”
B) 3mm or 1/8”
C) 6mm or 1/4”
D) 12mm or 1/2”

A

B) 3mm or 1/8”

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3
Q

Grinding wheel is classified by
A) the size and type of abrasive and the type of bonding agent
B) the size and width of the stone
C) the outside diameter, and the size of the arbor hole
D) the shape and colour of the wheel

A

A) the size and type of abrasive and the type of bonding agent

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4
Q

A safety specification to consider when selecting a grinding stone or disk is:
A) the grit size of the abrasive
B) the bonding material
C) the RPM rating of the stone or disc
D) the size of the tool

A

C) the RPM rating of the stone or disc

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5
Q

What is dressing tool used for?
A) putting a fine finish on ground edges
B) refacing the surface of grindstones
C) squaring the tool rest to the grindstone
D) checking the clearance between the grindstone and the rest

A

B) refacing the surface of grindstones

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6
Q

Bouncing or heavy vibration of the workpiece when grinding are indications that the grindstone is
A) of course, grit
B) travelling too fast
C) out of round
D) worn out

A

C) out of round

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7
Q

Before installing a new grindstone, you need to:
A) install a flat washer
B) roll it across the floor to check out of round conditions
C) inspect the wheel for cracks
D) lubricate the centre hole

A

C) inspect the wheel for cracks

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8
Q

The flutes of a drillbit
A) form the cutting edges on the point
B) allow the chips to escape
C) caused the chips to curl
D) permit cutting oil to reach the cutting edge
E) all of the above

A

E) all of the above

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9
Q

The risk of the drillbit grabbing the work or breaking
A) increases as the bit breaks through the workpiece
B) can be avoided by using adequate lubricant
C) can be minimized by running the drill faster
D) only occurs when drilling hard and steel

A

A) increases as the bit breaks through the workpiece

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10
Q

A V-block should be used when drilling holes in
A) round material
B) L shapes
C) non-Ferris material
D) items wear very accurate hold dimensions are needed

A

A) round material

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11
Q

Hand drills are rated by the
A) horsepower rating
B) maximum RPM
C) depth they can drill
D) size of the chuck

A

D) size of the chuck

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12
Q

Tapered shanks are most common on__________ drillbits
A) small
B) large
C) number
D) letter 13 B

A

B) large

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13
Q

Slots in the drill press table are provided for
A) mounting the drill head
B) draining the cutting fluid
C) clamping jigs to the table
D) securing the column

A

C) clamping jigs to the table

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14
Q

Magnetic base drill press is an advantage when
A) drilling non-Ferris metals
B) very accurate drilling is required
C) holes are drilled in the vertical plane
D) the cutting chips need to be recovered

A

C) holes are drilled in the vertical plane

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15
Q

Forming steel plate into cylinders is a process known as
A) braking
B) bending
C) pressing
D) rolling

A

D) rolling

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16
Q

The main reason for using templates when forming steel is too
A) maintain accuracy
B) increase production
C) eliminate tactical errors
D) enhance your pattern development skills

A

A) maintain accuracy

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17
Q

The power tool that is best suited for creating intricate shapes and multiple bends is
A) plate roll
B) power bender
C) power break
D) hydraulic press

A

B) power bender

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18
Q

Trip hammers are a good tool for
A) sharpening bucket teeth
B) pounding out dents
C) removing alignment pins
D) driving bolts into misaligned holes

A

A) sharpening bucket teeth

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19
Q

What two factors must be considered when setting the blade clearance on a power shear?
A) hardness and ductility
B) sheer strength and thickness
C) material type and thickness
D) sheer blade condition and lubricant type

A

C) material type and thickness

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20
Q

One advantage of a vertical bandsaw is that it:
A) permits, better operator, visibility
B) can be used to cut curves
C) provides easy access for blade changes
D) shut itself off when the cut is completed

A

B) can be used to cut curves

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21
Q

When cutting with a horizontal ban saw, it is possible to:
A) cut several pieces of barstock at the same time
B) cut a variety of structural shapes
C) start the cut and then go work on something else
D) all of the above

A

D) all of the above

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22
Q

A notcher is a cutting tool found on
A) band saw
B) a cut off saw
C) an ironworker
D) a hydraulic press

A

C) an ironworker

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23
Q

Safe cutting of L-shaped structures in a cut off saw requires:
A) a labour to do the work
B) one vertical leg of the L shape against the stationary block of the clamping device
C) one vertical leg of the shape against the adjustable block of the clamping device
D) both legs of the L shape resting on the tool base

A

B) one vertical leg of the L shape against the stationary block of the clamping device

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24
Q

Power positioners range in size from small table top versions to large industrial versions.
True or false

A

True

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25
Q

The shape size or length of an object being welded on the positioner may require the use of what to help it rotate easily?
A) counterweights
B) slings and an overhead crane
C) pipe stands
D) all of the above
E) both A & C

A

E) both A & C

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26
Q

What process can a power positioner be used with?
A) manual
B) semi automatic
C) automatic
D) both A&B
E) all of the above

A

E) all of the above

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27
Q

What must you ensure when you are replacing a grinding wheel?

A

That the rpm rating on the wheel is suitable for the grinder

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28
Q

Wheel guards are required on bench and pedestal grinders. How much of the wheel should they cover?
a) at least 26%
b) at least 45%
c) at least 66%
d) at least 85%

A

c) at least 66%

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29
Q

Wheel guards are required on bench and pedestal grinders. How far past the vertical plane should they extend?
a) 10° - 20°
b) 30° - 45°
c) 45° - 60°
d) 45° - 70°

A

b) 30° - 45°

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30
Q

A tool rest should be mounted so that there is no more than _______ between the grinding wheel and the tool rest.
a) 1/16”
b) 1/8”
c) 1/4”
d) 3/8”

A

b) 1/8” and at or above the centreline

31
Q

What is the most common bonding agent called?
a) silicon carbide
b) resinoid
c) vitrified
d) carbide

A

c) vitrified
these wheels are suitable for speeds up to 6500rpm

32
Q

Blotters are pieces of heavy paper attached to each side of the grinding wheel. Are the following statements T / F
______ They compensate for uneven surfaces on the sides of the wheel
______ They display important information about the wheel
______ They assist the wheel in running true

A

T - They compensate for uneven surfaces on the sides of the wheel
T - They display important information about the wheel
- Max safe rpm
- size of the wheel
- type, grit, grade of wheel
F - They assist the wheel in running true

33
Q

What does the term dressing refer to for grinding wheels.
a) removal of material from the face if it is out of round
b) putting a new grinding wheel on the grinder
c) cleaning or restoring the sharpness of a wheel that has become glazed or loaded with foreign particles

A

c) cleaning or restoring the sharpness of a wheel that has become glazed or loaded with foreign particles

34
Q

What other names are there for a portable grinder?

A

angle grinder - disk runs at 90° to the body
straight grinder - they run directly inline with its body
( die grinder)

35
Q

Is it true that there are some angle grinders that are rated as high as 12,000 rpm?

A

Yes there are some angle grinders that are rated to 12,000 rpm

36
Q

Portable grinders for flat or surface welding, holding the disk at a flat angle of _______ to the metal surface.
a) 5°
b) 10°
c) 15°
d) 20°

A

b) 10°

37
Q

when close tolerances are required what grinding technique should be used?
a) cross grinding technique
b) sweeping
c) reciprocating
d) blanchard grinding

A

a) cross grinding technique - this means grinding in layers, changing direction by 90° with each layer

38
Q

When drilling a round shape, clamp the object in a ________ to prevent the material from rolling
a) pipe clamp
b) V- Block
c) hose clamp
d) clam shell

A

b) V- Block

39
Q

Sensitive drill presses requires the operator to feed the drill by:
a) using electrical controls to advance the drill
b) pulling a hand feed lever
c) the drill feed is automatic - operator only swaps the parts

A

b) pulling a hand feed lever

40
Q

Upright drilling machines is similar to a sensitive drill press except:
a) an upright drill press is larger and uses a power feed system
b) an upright drill press is smaller and used for intricate
c) an upright is larger but requires the operator to pull a feed lever to advance the drill
d) the table on an upright drill is magnetic

A

a) an upright drill press is larger and uses a power feed system

41
Q

What is the biggest benefit of using a radial drilling machine?
a) The column can be positioned anywhere within a certain radius of the column
b) the radius can be positioned anywhere within a certain angle of the column
c) the spindle can be positioned anywhere within a certain radius of the column, depending on the size of the machine

A

c) the spindle can be positioned anywhere within a certain radius of the column, depending on the size of the machine

42
Q

list 3 common types of drill chucks

A
  1. keyed drill chuck - heavy duty
  2. keyless chuck - light duty
  3. drill socket and sleeve
    - an adapter for when the drill bit’s taper is either too large or too small for the machine’s chuck directly
43
Q

Twist drills/ drill bits have 3 main parts
a) point, body, shank
b) tip, body, shank
c) point, shaft, tang
d) tip, shank, tang

A

a) point, body, shank

44
Q

Straight shanks on twist drills are generally used on drills up to _______” in diameter

A

1/2”

45
Q

To remove a taper shank twist drill from a drill sleeve or spindle you:
a) release the locking pin
b) use a punch to release the twist drill from the tang
c) use a wedge shaped drift tool driven in to a slot above the tang

A

c) use a wedge shaped drift tool driven in to a slot above the tang

46
Q

What is the lip clearance created by:
a) combining specific angles of heel and flute
b) grinding the heel lower than the cutting edge
c) enduring the margin is at the correct angle

A

b) grinding the heel lower than the cutting edge

47
Q

What guides the drill in the hole and maintains the drill diameter
a) lip or cutting edge
b) the web
c) the heel
d) lip clearance

A

d) lip clearance

48
Q

The ______ is the thin portion in the centre of the drill. This forms the chisel edge and increases in thickness towards the shank.
a) heel
b) flute
c) chisel edge
d) web

A

d) web

49
Q

The 4 methods used to designate twist drill sizes. List them from smallest to largest
1.
2.
3.
4.

A
  1. number
  2. letter
  3. fractional
  4. metric
50
Q

Number twist drills are the smallest & range from
#____ at .0059” up to #____ at 0.228”

A

from #97 to #1

51
Q

Letter twist drills begin where numbered drills leaves off. They range from
____ at .234” up to ____ at .413”

A

from A to Z

52
Q

Fractional twist drills are avail in diameters ranging from 1/16” to ____”
a) 2”
b) 4”
c) 6”
d) 8’

A

b) 4”

53
Q

Metric twist drills range from .04mm to _____mm in diameter.
a) 40mm
b) 80mm
c) 90mm
d) 100mm

A

b) 80mm

54
Q

If there is insufficient lip clearance the twist drill:
a) the edges lack support which causes chipping
b) vibrates while cutting causing a larger kerf
c) can not be fed into the work efficiently
d) the drill will cut oversized holes

A

c) can not be fed into the work efficiently

55
Q

If there is to much lip clearance, the cutting edges lack support, which causes:
a) vibration
b) bouncing
c) cracking
d) chipping

A

d) chipping

56
Q

When sharpening twist drills, align the twist drill so that the shank is_______ _______ than the point and the axis of the twist drill is 59° from the face of the wheel
a) level
b) slightly higher
c) slightly lower
d) significantly lower

A

c) slightly lower

57
Q

Twist drills are manufactured with standard point geometry with a drill point angle of ____° and a lip clearance angle of ____°
a) 110° & 5°
b) 118° & 10°
c) 125° & 18°
d) 132° & 10°

A

b) 118° & 10°

58
Q

What drill point angles _______ & lip clearances _______are better for use on SS?
a) 135° & 8°
b) 150° & 10°
c) 50° & 120°
d) 120° & 25°

A

a) 135° & 8°

59
Q

Softer materials like plastic or non-ferrous metals should be drilled with a drill point angle of ______° to ______° and a lip clearance angle of up to _____°
a) drill point angle of 50° to 80° & lip clearance of up to 10°
b) drill point angle of 60° to 90° & lip clearance of up to 12°
c) drill point angle of 80° to 90° & lip clearance of up to 8°
d) drill point angle of 30° to 60° & lip clearance of up to 5°

A

b) drill point angle of 60° to 90° & lip clearance of up to 12°

60
Q

Is it true that there are drills with carbide inserts for drilling of very hard materials?

A

Yes that statement is true

61
Q

What is the ideal ratio of oil to water for coolants & cutting fluids?
a) 10:1
b) 15:1
c) 25:1
d) 40:1

A

c) 25:1

62
Q

Plate rolls are available to use 3, 4, or 5 rollers.
______ roller usually the ______ roller is stationary.
a) 2 rollers usually the top rollers are stationary
b) 2 rollers usually the bottom rollers are stationary
c) 1 roller usually the bottom roller is stationary
d) 1 roller usually the top roller is stationary

A

d) 1 roller usually the top roller is stationary

63
Q

Some _______ _______ have grooves incorporated for rolling L-shape, C shape and other structural shapes.
a) plate rolls
b) iron workers
c) shears
d) power breaks

A

a) plate rolls

64
Q

How are power breaks rated?
a) thickness of material
b) electric or pneumatic
c) type of bend to be made
d) max thickness and length of material

A

d) max thickness and length of material

65
Q

What advantage does a press have over a power break or press?
a) where multiple or compound bends are required
b) where material thickness is greater
c) when using material that has hot shortness
d) when material has high tensile strength

A

a) where multiple or compound bends are required

66
Q

What is the largest hazard when operating a pneumatic press:
a) lines blowing from increased pressures
b) the ram moves quickly & the operator has to run it with a foot pedal keeping them within the machines proximity
c) pinched fingers

A

b) the ram moves quickly & the operator has to run it with a foot pedal keeping them within the machines proximity

67
Q

Trip hammers hare high speed hammering tools used to shape metals such as sharpening of bucket and ripper teeth.
Can they also be used to bend bar stock for dishing plate materials?

A

Yes, a trip hammer can be used for sharpening of bucket and ripper teeth and to bend bar stock for dishing plate materials.

68
Q

what is another name for a notcher on an iron worker

A

nibbler

69
Q

What must you do when using a cut off saw with L shapes
(angle iron)
a) clamp the L shape so that one vertical leg is against the stationary block of the clamping device with the other leg lies on the tool base

b) clamp the L shape so that one horizontal leg is against the stationary block of the clamping device with the other leg lies on the tool base

c) clamp the L shape so that both legs are flat against the base

A

a) clamp the L shape so that one vertical leg is against the stationary block of the clamping device with the other leg lies on the tool base

70
Q

What is the max angle that a horizontal band saw can be adjusted to make a mitre cut?
a) 25°
b) 45°
c) 55°
d) 65°

A

b) 45°

71
Q

What is another name for a manual positioner?

A

spinner

72
Q

The benefit of using a power positioner
a) higher accuracy of cuts
b) increased production
c) less operator errors
d) less clean up

A

b) increased production

73
Q

What are turning rolls used for?
a) rolling plate to allow welding into cylinders
b) rolling plate flat with heavy rollers
dc large vessels are rotated for welding

A

a) rolling plate to allow welding into cylinders

Welder 1 (40 decks)

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