Self-Test C-3.2: Use Scale Rulers to Determine Actual Dimensions from a Piping Diagram
Complete Self-Test C-3.2 and check your answers.
- List the correct measurements for the lettered dimensions in Figure 1.
a: f:
b: g:
c: h:
d: i:
e: j:
- Find the lengths of the sections of pipe (Figure 2), centre to centre, using an architect’s rule. Scale [latex]\frac{3}{4}\text{"} = 1\text{'}-0\text{"}[/latex]. **measurements may vary from answer key with different printed versions**
a:
b:
c:
d:
e:
- Write the correct measurement of the dimensions shown below in the box at the right:
- Using Figure 3 give the C—C (centre to centre) lengths of each section of pipe in mm, using a metric scale. **measurements may vary from answer key with different printed versions**
a:
b:
c:
d:
- What would the lengths be in Figure 3 if the scale was 1:50?
a:
b:
c:
d:
- Find the millimetre lengths of the sections of pipe, centre-to-centre, in each of the four scales in Figure 4, using a metric rule. **measurements may vary from answer key with different printed versions**
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Scale |
1:5 |
1:50 |
1:20 |
1:100 |
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c. |
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d. |
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- State the two reasons why it is poor practice to obtain dimensions by measuring drawings.
a:
b:
- State reasons why it is not usually necessary to measure drawings for dimensions.
Answer:
- State the procedure required to obtain dimensions that appear to be missing.
Answer:
- State why arithmetic is necessary occasionally for finding dimensions.
Answer:
- Using a metric tape, calculate the lettered dimensions in Figure 5. The scale is 1:20.
a:
b:
c:
d:
e:
f:
g:
- If the scale in Figure 5 were 1:50, what would the dimensions be?
a:
b:
c:
d:
e:
f:
g:
- Using an imperial tape measure, calculate the lettered dimensions in Figure 6 at a scale of [latex]\frac{1}{8}[/latex] inch = 1 foot. **measurements may vary from answer key with different printed versions**
a: f:
b: g:
c: h:
d: i:
e:
- Find the exact length of the lettered dimensions in Figure 7, according to the scale. **measurements may vary from answer key with different printed versions**
a:
b:
c:
d:
e:
Answer Key: Self-Test C-3.2 is on the other page.
