| Exam A - Questions 1-25 Safety Test | 19 | 16 | 20 |
| Exam B - Questions 1-20 Written Test | 15 | 15 | 13 |
| Exam B - Questions 21-40 Written Test | 12 | 9 | 8 |
| Exam B - Questions 41-60 Written Test | 6 | 8 | 7 |
| Exam B - Questions 61-80 Written Test | 15 | 15 | 9 |
| Exam B - Questions 81-100 Written Test | 15 | 12 | 6 |
| Exam B Total Written Test | 63 | 59 | 43 |
| Exam C - Questions 1-20 Trouble Shooting | 26 | 24 | 22 |
| Exam C - Questions 21-40 Trouble Shooting | 22 | 26 | 22 |
| Exam C - Questions 41-50 Trouble Shooting | 12 | 12 | 12 |
| Exam C Total Troubleshooting | 60 | 62 | 56 |
| Exam D - Questions 1-20 ID | 24 | 22 | 18 |
| Exam D - Questions 21-40 ID | 26 | 28 | 30 |
| Exam D - Questions 41-50 ID | 14 | 16 | 14 |
| Exam D Total Identification | 64 | 66 | 62 |