#902157
How should an acetylene bottle be positioned during welding?
Варианты ответа:
  • the bottle must be positioned at an angle of at least 30° with the floor
  • the bottle must always be in an upright position
  • the bottle may be laid down on the floor
  • the bottle must be positioned at an angle of at least 40° with the floor
Тематика: Основы регламентации и нормирования труда Основы экологического права Правовые и экономические основы охраны окружающей среды
Курсы в категории: Экономика и управление
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