Dial Caliper Reading Practice
A worksheet to practice reading measurements on a dial caliper, suitable for Grade 9 Math students.
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Dial Caliper Reading Practice
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Read each description of a dial caliper setting and determine the correct measurement. Pay close attention to the main scale, thimble scale, and dial indicator.
1. If the main scale shows 1 inch, the thimble scale shows 0.025 inches, and the dial indicator shows 0.007 inches, the total measurement is .
2. A dial caliper reading with the main scale at 0.5 inches, thimble at 0.075 inches, and dial at 0.003 inches results in a total of .
3. The measurement is 2 inches on the main scale, 0.050 inches on the thimble, and 0.009 inches on the dial. The final reading is .
4. What is the reading if the main scale is at 0.0 inches, the thimble is at 0.000 inches, and the dial is at 0.000 inches? .
5. Explain the purpose of the main scale on a dial caliper.
6. Describe how the thimble scale contributes to the overall measurement.
7. Which part of the dial caliper provides the most precise fractional measurement?
Main Scale
Thimble Scale
Dial Indicator
Depth Rod
8. The main scale of a dial caliper typically measures in hundredths of an inch.
True
False