Tape Measure
The tape measure comes in many different sizes and shapes. It’s used for many purposes, from generalized building layout and dimensioning, to finite processes such as machining layout.
Considerations
- Pre-Operation Checklist is a prerequisite for ANY operation.
- Applies to standard retracting tapes commonly found in the shop. Imperial, Metric, and Dual System tapes are all used approximately in the same way.
- Tools are in working condition, capable of being properly verified for accuracy.
- Test examples are of appropriate size to be measured using the available tools.
Pre-Operation Checklist
Level 1
- Verifies blade is working properly and free of debris.
- Verifies blade hook appears square and operating properly.
- Verifies calibration to a known standard.
- Handles tape measure with care to maintain accuracy.
Level 2
- Demonstrates ability to correct / calibrate an out-of-standard tape.
- Meets Level 1 performance standard.
Measure Lengths (Imperial)
Level 1
Given material with a minimum of 5 marks to measure; one each on some multiple of 1/32″, 1/16″, 1/8″, 1/4″, and 1/2″, with at least 1″ separation between each mark, and tape measure calibrated and ready to measure, determine the length of each mark from the end of the board.
- Records the measurement of each mark.
- Accuracy of answer shall be within 1/32″ [0.031″].
Level 2
Given material with a minimum of 5 marks to measure; one each on some multiple of 1/32″, 1/16″, 1/8″, 1/4″, and 1/2″, with at least 1″ separation between each mark, and tape measure calibrated and ready to measure, determine the length of each mark from the end of the board.
- Records the measurement of each mark.
- Accuracy of answer shall be within 1/64″ [0.015].
Measure Lengths (Metric)
Level 1
Given material with a minimum of 5 marks to measure; one each on some multiple of 1 mm, 10 mm (1 cm), and
100 mm, with at least 30 mm separation between each mark, and tape measure calibrated and ready to measure, determine the length of each mark from the end of the board.
- Records the measurement of each mark.
- Accuracy of answer shall be ±1 mm.
Level 2
Given material with a minimum of 5 marks to measure; one each on some multiple of 1 mm, 10 mm (1 cm), and 100 mm, with at least 30 mm separation between each mark, and tape measure calibrated and ready to measure, determine the length of each mark from the end of the board.
- Records the measurement of each mark.
- Accuracy of answer shall be ±0.5 mm.
Measure Inside Dimension Of Opening
Level 1
Given material and tape set up and ready to measure, determine the size of an inside opening within the range 305 mm to 1219 mm (12″ to 48″).
- Records the measurement of opening.
- Accuracy of answer shall be ±0.8 mm (1/32″) [0.031″].
Level 2
Given material and tape set up and ready to measure, determine the size of an inside opening within the range 305 mm to 2440 mm (12″ to 96″).
- Records the measurement of opening.
- Accuracy of answer shall be ± 0.4 mm (1/64″) [0.015″].
Distribute Marks Evenly Across A Board
Level 1
Given material and device set up and ready to lay out, determine the size of a (12″ to 48″) [305 mm to 1219 mm] board, then distribute two 19 mm (3/4″) [0.75″] spaces (such as shelves or dividers) evenly within the length.
- Each dimension shall have a tolerance of ± 0.8mm (1/32″) [0.031″].
- Each space location shall be accurate to a tolerance of ± 0.8 mm (1/32″) [0.031″].
Level 2
Given material and device set up and ready to lay out, determine the size of a (12″ to 48″) [305 mm to 1219 mm] board, then distribute four 19 mm (3/4″) [0.75″] spaces (such as shelves or dividers) evenly within the length.
- Each dimension shall have a tolerance of ±0.4 mm (1/64″) [0.015″].
- Each space location shall be accurate to a tolerance of ±0.4 mm (1/64″) [0.015″].