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.

Study for the Mine Safety DAO 2000-98 Test with our interactive quizzes. Each question comes with explanations to boost your readiness. Excel in your exam!

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.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy