Dial Caliper Measurement Techniques

This video tutorial by Colfax Math provides a quick guide on how to read a dial caliper. It starts with an introduction to the tool, explaining that the measurements are in inches and each mark represents one-thousandth of an inch. The video then demonstrates several examples of reading measurements, ranging from simple to more complex scenarios. It concludes with a discussion on the four different ways to use a dial caliper, emphasizing the importance of handling it gently as a precision tool.

What unit of measurement is used on the dial caliper in the video?

• Feet

• Millimeters

• Centimeters

• Inches

If the line for the number 6 is visible on the bar, what is the measurement?

• 0.658 inches

• 0.658 millimeters

• 6.58 inches

• 65.8 inches

How would you read a measurement of 1.154 on the dial caliper?

• 115.4 inches

• 11.54 inches

• 1.154 inches

• 0.154 inches

What is the measurement if the line for the number 9 is not visible?

• 0.896 inches

• 8.96 inches

• 89.6 inches

• 896 inches

How would you interpret a reading of 1.775 on the dial caliper?

• 1.775 inches

• 177.5 inches

• 0.775 inches

• 17.75 inches

What is the measurement if the bar shows a big number 3?

• 3.176 inches

• 0.3176 inches

• 31.76 inches

• 317.6 inches

Which part of the dial caliper is used for inside measurements?

• The jaws

• The depth rod

• The step gauge

• The dial

What is the purpose of the depth rod on a dial caliper?

• To measure step height

• To measure the depth of a hole

• To measure outside dimensions

• To measure inside dimensions

How should you handle a dial caliper to ensure accurate measurements?

• Close it forcefully

• Close it gently and zero it out

• Use it without zeroing

• Leave it open

What is the function of the step gauge on a dial caliper?

• To measure step height

• To measure the depth of a hole

• To measure outside dimensions

• To measure inside dimensions