Safety, Tools, Weld Faults And OAW

Question 0

Th gap between the tool rest and the grindstone on a bench grinder should never be more than:

A) 1.6mm (1/16”)
B) 3mm (1/8”)
C) 6mm (1/4”)
D) 12mm (1/2”)

Answer 0

B) 3mm (1/8”)

Question 1

Guards on bench grinders should cover:

A) 1/4 of the wheel
B) 1/3 of the wheel
C) 1/2 of the wheel
D) 2/3 of the wheel

Answer 1

D) 2/3 of the wheel

Question 2

The grinding wheel is classified by:

A) the size and type of the 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

Answer 2

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

Question 3

The safety specification to consider when selecting a grinding stone or disc is:

A) the grit size of the abrasive
B) the type of bonding material used
C) the rpm rating of the stone or disc
D) the size of the tool

Answer 3

C) the rpm rating of the stone or disc

Question 4

A dressing to is used for:

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

Answer 4

B) refacing the surface of grindstones

Question 5

Bouncing or heavy vibration of the workpiece when grinding are indications that the grindstone is:

A) a coarse grit
B) travelling too fast
C) out of round
D) worn out

Answer 5

C) out of round

Question 6

Before installing a new grindstone, you need to:

A) install a flat washer
B) roll it across the floor to check for out of round conditions
C) inspect the wheel for cracks
D) lubricate the centre hole

Answer 6

C) inspect the wheel for cracks

Question 7

The flutes of a drill bit:

A) form the cutting edges on the point
B) allow the chips to escape
C) cause the chips to curl
D) all of the above

Answer 7

D) all of the above

Question 8

The web of a drill bit:

A) separates the flutes
B) is the supporting section of the bit
C) gradually increases in thickness throughout its length
D) all of the above

Answer 8

D) all of the above

Question 9

The risk of the drill bit grabbing the work or breaking:

A) increases as the bit is breaking 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 hardened steels

Answer 9

A) increases as the bit is breaking through the workpiece

Question 10

A V-block should be used when drilling holes in:

A) round material
B) angle iron
C) non-ferrous material
D) items where very accurate hole dimensions are needed

Answer 10

A) round material

Question 11

Hand drills are rated by the:

A) horsepower ratings
B) maximum rpm
C) depth they can drill
D) size of the chuck

Answer 11

D) size of the chuck

Question 12

Tapered shanks are most common on:

A) small drill bits
B) large drill bits
C) number drill bits
D) letter drill bits

Answer 12

B) large drill bits

Question 13

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

Answer 13

C) clamping jigs to the table

Question 14

A magnetic base drill is an advantage when:

A) drilling non-ferrous metals
B) very accurate drilling is required
C) holes are drilled in the vertical plane
D) the cutting chips need to be recovered

Answer 14

C) holes are drilled in the vertical plane

Question 15

Forming steel plate into cylinders is a process known as:

A) braking
B) bending
C) pressing
D) rolling

Answer 15

D) rolling

Question 16

The main reason for using templates when forming steel is to:

A) maintain accuracy
B) increase production
C) eliminate tactical errors
D) impress your boss with your pattern development skills

Answer 16

A) maintain accuracy

Question 17

Before using power brakes, it is a good practice to:

A) turn the machine on
B) check with your foreman
C) confirm the machine settings
D) take off your safety glasses

Answer 17

C) confirm the machine settings

Question 18

The power tool that is best suited for creating intricate shapes and multiple bends is the:

A) plate roll
B) power bender
C) power brake
D) hydraulic press

Answer 18

B) power bender

Question 19

Trip hammers are a good tool for:

A) sharpening bucket teeth
B) pounding out dents
C) removing alignment pins
D) driving bolts into misalignment holes

Answer 19

A) sharpening bucket teeth

Question 20

What 2 factors must be considered when setting the blade clearance on a power shear?

A) hardness and ductility
B) shear strength & thickness
C) material type & thickness
D) shear blade condition and lubricant type

Answer 20

C) material type & thickness

Question 21

One advantage of a vertical band saw is that it:

A) permits better operator visibility
B) can be used to cut curves
C) provides easy access for blade changes
D) shuts itself off when the cut is completed

Answer 21

B) can be used to cut curves

Question 22

When cutting with a horizontal band saw, it is possible to:

A) cut server all pieces of bar stock at the same time
B) cut a variety of structural shapes
C) start the cut and then go work on something else
D) all the above

Answer 22

D) all the above

Question 23

A not her is a cutting tool found on:

A) a band saw
B) a cut-off saw
C) an iron worker
D)a hydraulic press

Answer 23

C) an iron worker

Question 24

Safe cutting of angle iron in a cut-off saw requires:

A) a labourer to do the work
B) one vertical leg of the angle iron against the stationary block of the clamping device
C) one vertical leg of the angle iron against the adjustable block of the clamping device
D) both legs of the angle iron resting on the tool base

Answer 24

B) one vertical leg of the angle iron against the stationary block of the clamping device