Shop Practices

Question 1

What Point Angle for a drill bit is recommended for drilling Hard material?

Answer 1

150 degrees

Question 2

What Point Angle for drill bits is recommended for drilling Soft material?

Answer 2

90 degrees

Question 3

What Point Angle is recommended for drill bits to drill General material?

Answer 3

118 degrees

Question 4

What is the Point Angle of a Prick Punch?

Answer 4

30-60 degrees

Question 5

What is the Point Angle of a Centre Punch?

Answer 5

90 degrees

Question 6

What is the Included Angle of a Flat Cold Chisel?

Answer 6

70 degrees

Question 7

What does a Kerf do for a hacksaw blade?

Answer 7

Prevents it from binding while cutting.

Question 8

What is the rule of thumb for picking out a hacksaws blade/pitch?

Answer 8

2 teeth should always be in contact with the part.

Question 9

Which way are the teeth of a hacksaw pointed?

Answer 9

Away from the handle

Question 10

On which motion does the hacksaw cut?

Answer 10

Forward Motion

Question 11

What is another word sometimes used for Cutting Speed?

Answer 11

Surface Speed

Question 12

What is cutting speed expressed in units?

Answer 12

Meters/Minute or Feet/Minute

Question 13

Which has a faster Cutting Speed Carbide cutters or HSS cutters? By how much?

Answer 13

Carbide Cutters by 2.5 times

Question 14

What is the equation for rpm of a power tool using Cutting Speed in metric?

Answer 14

Rpm = (CS x 1000)/(pie x D)

Question 15

What is the equation for power tool rpm using Cutting Speed in imperial?

Answer 15

Rpm = (CS x 12) / (pie x D)