Excavations over two (2) meters in depth shall be supplied with at least _____ ladder for every three (3) meters or fraction thereof. A ladder shall extend at least 60 cm. from the trench bottom to ground level.

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Prepare for the Mine Safety DAO 2000-98 Test. Study with flashcards and multiple-choice questions, each with hints and explanations. Get ready to pass!

Multiple Choice

Excavations over two (2) meters in depth shall be supplied with at least _____ ladder for every three (3) meters or fraction thereof. A ladder shall extend at least 60 cm. from the trench bottom to ground level.

Explanation:
When excavations are deeper than 2 meters, safe access must be provided so workers can climb in and out easily. The rule specifies one ladder for every 3 meters of depth or fraction thereof. Since the trench is just over 2 meters deep, it falls into the first interval, requiring one ladder. The ladder must extend at least 60 cm above the trench bottom to ground level to ensure a safe transition. Therefore, the minimum number of ladders is one.

When excavations are deeper than 2 meters, safe access must be provided so workers can climb in and out easily. The rule specifies one ladder for every 3 meters of depth or fraction thereof. Since the trench is just over 2 meters deep, it falls into the first interval, requiring one ladder. The ladder must extend at least 60 cm above the trench bottom to ground level to ensure a safe transition. Therefore, the minimum number of ladders is one.

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