In aircraft maintenance and storage hangars, the area within______ $\mathrm{ft}$ horizontally from aircraft power plants or aircraft fuel tanks shall be classified as a Class I, Division 2 or Zone 2 location that shall extend upward from the floor to a level ______$\mathrm{ft}$ above the upper surface of wings and of the engine enclosures.

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The Answer of In aircraft maintenance and storage hangars, the area within______ $\mathrm{ft}$ horizontally from aircraft power plants or aircraft fuel tanks shall be classified as a Class I, Division 2 or Zone 2 location that shall extend upward from the floor to a level ______$\mathrm{ft}$ above the upper surface of wings and of the engine enclosures.

In Aircraft Maintenance and Storage Hangars, the Area Within______ ft\mathrm{ft}ft Horizontally from Aircraft Power Plants or Aircraft Fuel Tanks Shall

In Aircraft Maintenance and Storage Hangars, the Area Within______ $\mathrm{ft}$ Horizontally from Aircraft Power Plants or Aircraft Fuel Tanks Shall