Unit 109 McKeown`s Table - measure back method.

What is McKeon's table also known as?

• The plumbing code

• The bending back method

• The measuring back technique

• The pipe fitting formula

How much pipe is needed to put a 90 degree bend using the technique described?

• 400 millimeters

• 300 millimeters

• 500 millimeters

• 600 millimeters

What is the first step after measuring and cutting the pipe for a 90 degree bend?

• Place the pipe on the end to 300 mil

• Mark the center of the pipe

• Bend the pipe

• Draw a line where the bend starts

For a 90 degree bend in a 22 mil pipe, how much do you need to measure back?

• 70 millimeters

• 100 millimeters

• 50 millimeters

• 120 millimeters

What is crucial to ensure when placing the pipe in the pipe bender?

• The crossed out bit is on the former side

• The guide is not inserted

• The pipe is heated

• The pipe is wet

What should you do after bending the pipe 90 degrees?

• Measure it again

• Cut it immediately

• Over bend it slightly

• Cool it down immediately

For a 45 degree bend in a 15 mil pipe, how much do you measure back?

• 40 millimeters

• 35 millimeters

• 50 millimeters

• 25 millimeters

What is the purpose of marking the center of the pipe before bending?

• To ensure the bend starts at the correct point

• To mark where to cut after bending

• To indicate the top of the pipe

• To measure the length of the bend

What is the measure back for a 30 degree bend in a 15 mil pipe?

• 35 millimeters

• 23 millimeters

• 30 millimeters

• 15 millimeters

What is the final step after bending the pipe for an offset?

• Drawing a line where the horizontal and the 30 degree intercept

• Measuring the pipe again

• Cooling the pipe

• Checking the bend with a protractor