1. Using a metric micrometer caliper to measure the thickness of a plate, we found that graduation line 4 is visible on the sleeve, one additional 0.5 mm is visible in the sleeve, line 4 on the thimble coincides with the reading line on the sleeve. What is the measured thickness of the plate?
I know:
A metric micrometer caliper is used to make a variety of accurate measurements without the possibility of error through misreading which exists when other finely graduated tool are used.
Since the pitch of the spindle screw is one-half millimeter (0.5 mm), one revolution of the thimble advances the spindle toward or away from the anvil the same 0.5 mm distance.
The reading line on the sleeve is graduated in millimeters (0.1 mm) with every fifth millimeter being numbered from 0 to 25. Each millimeter is also divided in half (0.5 mm), and it requires two revolutions of the thimble to advance the spindle of 1.0 mm.
To read the micrometer, add the number of millimeters and half-millimeters visible on the sleeve to the number of hundredths of a millimeter indicated by the thimble graduation which coincides with the reading on the sleeve.
Please help!!
Mary. Please type your question. Do not keep posting 1. and nothing else.
To determine the measured thickness of the plate using the metric micrometer caliper, we need to consider the information provided:
1. The visibility of graduation line 4 on the sleeve indicates that it contributes 4 mm to the measurement.
2. Additionally, 0.5 mm is visible beyond the graduation line 4 on the sleeve.
3. Line 4 on the thimble coincides with the reading line on the sleeve.
To calculate the measured thickness of the plate, we can follow these steps:
1. Determine the contribution from the visible measurements on the sleeve:
- Graduation line 4 contributes 4 mm.
- The additional 0.5 mm beyond line 4 brings the total to 4.5 mm.
2. Determine the contribution from the thimble reading:
- Since line 4 on the thimble coincides with the reading line on the sleeve, there is no additional contribution from the thimble.
3. Add the contributions from the sleeve and the thimble:
- The visible measurements on the sleeve contribute 4.5 mm.
- There is no additional contribution from the thimble.
Therefore, the measured thickness of the plate is 4.5 mm.
To find the measured thickness of the plate using the information provided, follow these steps:
1. Start by noting the graduation line on the sleeve. In this case, it is line 4.
2. Count the number of additional 0.5 mm visible in the sleeve. You mentioned that one additional 0.5 mm is visible. So, add 0.5 mm to the previous count.
3. Note the thimble reading. In this case, line 4 on the thimble coincides with the reading line on the sleeve.
4. Add the number of millimeters and half-millimeters visible on the sleeve to the number of hundredths of a millimeter indicated by the thimble graduation.
So, let's calculate the measurement:
- Number of millimeters visible on the sleeve = 4
- Number of half-millimeters visible on the sleeve = additional 0.5 mm
- Thimble reading coincides with line 4
Therefore, the measured thickness of the plate is:
4 mm + 0.5 mm + 0.04 mm (from the thimble reading) = 4.54 mm
So, the measured thickness of the plate is 4.54 mm.