With reference to figures 1 2 and 3 calculate A basic size 8
Solution
Ans – 1
All dimensions are in millimeters (mm)
For Figure 1:
Dimension
(A) Basic Size
(B) Tolerance
(C) Max limit
(D) Min Limit
J
3.50
.00 – (-.02) = 0.02
3.50+0.00 = 3.50
3.50-0.02 = 3.48
K
1.00
.01 – (-.00) = 0.01
1.00+0.01 = 1.01
1.00-0.00 = 1.00
L
2.250
.001 - (-.001) = 0.002
2.250+0.001 = 2.251
2.250 – 0.001 = 2.249
M
0.240
.001 - (-.001) = 0.002
0.240+0.001 = 0.241
0.240 – 0.001 = 0.239
For Figure 2:
Dimension
(A) Basic Size
(B) Tolerance
(C) Max limit
(D) Min Limit
J
3.00
0.00 – (-0.03) = 0.03
3.00 + 0.00 = 3.00
3.00 – 0.03 = 2.97
K
2.00
0.02 – (-0.02) = 0.04
2.00 +0.02 = 2.02
2.00 – 0.02 = 1.98
L
0.750
0.000 – (-0.001) = 0.001
0.750 + 0.000 = 0.750
0.750 – 0.001 = 0.749
M
(0.502+0.498)/2 = 0.500
0.502 – 0.498 = 0.04
0.502
0.498
For Figure 3:
Dimension
(A) Basic Size
(B) Tolerance
(C) Max limit
(D) Min Limit
J
3.44
.06 - (-.06) = 0.12
3.44+0.06 = 3.50
3.44 – 0.06 = 3.38
K
1.00
.00 – (-.02) = 0.02
1.00+0.00 = 1.00
1.00 – 0.02 = 0.98
L
0.75
.01 - (-.01) = 0.02
0.75+0.01 = 0.76
0.75 – 0.01 = 0.74
M
1.75
.01 - (-.01) = 0.02
1.75+0.01 = 1.76
1.75 – 0.01 = 1.74
| Dimension | (A) Basic Size | (B) Tolerance | (C) Max limit | (D) Min Limit |
| J | 3.50 | .00 – (-.02) = 0.02 | 3.50+0.00 = 3.50 | 3.50-0.02 = 3.48 |
| K | 1.00 | .01 – (-.00) = 0.01 | 1.00+0.01 = 1.01 | 1.00-0.00 = 1.00 |
| L | 2.250 | .001 - (-.001) = 0.002 | 2.250+0.001 = 2.251 | 2.250 – 0.001 = 2.249 |
| M | 0.240 | .001 - (-.001) = 0.002 | 0.240+0.001 = 0.241 | 0.240 – 0.001 = 0.239 |


