To prevent static electricity sparks when filling a cargo tank with flammable liquid, you must:

Ground the tank before opening the filling hole and maintain it until closed. Section 9.5.3: Ground a cargo tank correctly before filling

To prevent static electricity sparks when filling a cargo tank with flammable liquid, you must:

ANSWER BREAKDOWN
  • A. Incorrect. "Wear rubber gloves" is not correct. Ground a cargo tank correctly before filling it through an open filling hole. Ground the tank before opening the filling hole.
  • B. Correct. Ground a cargo tank correctly before filling it through an open filling hole. Ground the tank before opening the filling hole.
  • C. Incorrect. "Stand on a rubber mat" is not correct. Ground a cargo tank correctly before filling it through an open filling hole. Ground the tank before opening the filling hole.
  • D. Incorrect. "Pour water on the ground" is not correct. Ground a cargo tank correctly before filling it through an open filling hole. Ground the tank before opening the filling hole.