If you are driving a vehicle with a manual transmission, you must NOT shift gears:

While crossing railroad tracks.. Section 2.15: Do not shift gears while crossing railroad tracks. If you miss a gear, you could get stuck

If you are driving a vehicle with a manual transmission, you must NOT shift gears:

ANSWER BREAKDOWN
  • A. Incorrect. "When going uphill." is a valid/expected item and does not fit the "NOT" criterion. Do not shift gears while crossing railroad tracks. If you miss a gear, you could get stuck on the tracks.
  • B. Correct. Do not shift gears while crossing railroad tracks. If you miss a gear, you could get stuck on the tracks.
  • C. Incorrect. "When going downhill." is a valid/expected item and does not fit the "NOT" criterion. Do not shift gears while crossing railroad tracks. If you miss a gear, you could get stuck on the tracks.
  • D. Incorrect. "On a highway." is a valid/expected item and does not fit the "NOT" criterion. Do not shift gears while crossing railroad tracks. If you miss a gear, you could get stuck on the tracks.