On the following tap size 1 in. -8 UNC-2A, identify thread meaning for 1 in.? b. Number of threads per inch of length e. External c. Coarse or Fine a. Major diameter d. Class of thread f. Internal Question 10 On the following tap size 10-32 UNF-3A, identify thread meaning for 3A? e. External d. Class of thread f. Internal a. Major diameter c. Coarse or Fine b. Number of threads per inch of length 10 pts

Let's break down the thread specifications for each tap size:<br /><br />### For the tap size 1 in. - 8 UNC-2A:<br /><br />1. **1 in.** <br /> a. **Major diameter**: The major diameter is the largest diameter of the thread, which is 1 inch.<br /><br />b. **Number of threads per inch of length**: The number "8" indicates there are 8 threads per inch.<br /><br />c. **Coarse or Fine**: The designation "UNC" stands for Unified National Coarse, indicating that it is a coarse thread.<br /><br />d. **Class of thread**: The "2A" indicates the class of fit for external threads. Class 2A is a medium fit, providing a balance between ease of assembly and tightness.<br /><br />e. **External**: The "A" in "2A" signifies that this is an external thread.<br /><br />f. **Internal**: Not applicable here since "2A" refers to an external thread.<br /><br />### For the tap size 10-32 UNF-3A:<br /><br />a. **Major diameter**: The "#10" size corresponds to a nominal major diameter of approximately 0.190 inches.<br /><br />b. **Number of threads per inch of length**: The number "32" indicates there are 32 threads per inch.<br /><br />c. **Coarse or Fine**: The designation "UNF" stands for Unified National Fine, indicating that it is a fine thread.<br /><br />d. **Class of thread**: The "3A" indicates the class of fit for external threads. Class 3A is a tighter fit than 2A, offering less play and more precision.<br /><br />e. **External**: The "A" in "3A" signifies that this is an external thread.<br /><br />f. **Internal**: Not applicable here since "3A" refers to an external thread.<br /><br />These explanations should help you understand the meaning behind each part of the thread specification.