| Exam A - Questions 1-25 Safety Test | 19 | 17 | 18 |
| Exam B - Questions 1-20 Written Test | 17 | 17 | 15 |
| Exam B - Questions 21-40 Written Test | 14 | 13 | 12 |
| Exam B - Questions 41-60 Written Test | 6 | 7 | 4 |
| Exam B - Questions 61-80 Written Test | 18 | 15 | 18 |
| Exam B - Questions 81-100 Written Test | 12 | 14 | 13 |
| Exam B Total Written Test | 67 | 66 | 62 |
| Exam C - Questions 1-20 Trouble Shooting | 30 | 32 | 36 |
| Exam C - Questions 21-40 Trouble Shooting | 32 | 28 | 28 |
| Exam C - Questions 41-50 Trouble Shooting | 14 | 14 | 14 |
| Exam C Total Troubleshooting | 76 | 74 | 78 |
| Exam D - Questions 1-20 ID | 34 | 28 | 30 |
| Exam D - Questions 21-40 ID | 26 | 30 | 32 |
| Exam D - Questions 41-50 ID | 14 | 16 | 10 |
| Exam D Total Identification | 74 | 74 | 72 |