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Digger Derrick test questions with accurate detailed answers
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What does the white flag represent? - ✔✔Proposed excavation
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What does the pink flag represent? - ✔✔Temporary Survey Markings
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What does the red flag represent? - ✔✔Electric power lines, cables, and conduits
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What does the yellow flag represent? - ✔✔Gas, oil, steam, petroleum, and gaseous
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materials
What does the orange flag represent? - ✔✔Communications, alarms, or signal lines
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What does the blue flag represent? - ✔✔Potable water
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What does the purple flag represent? - ✔✔Reclaimed water, irrigation, slurry lines
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What does the green flag represent? - ✔✔Sewers and drain lines
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What does the OSHA standard say in 1926.959a2? - ✔✔The critical safety components of
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mechanical elevating and rotating equipment shall receive a thorough visual inspection
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before use on each shift
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At minimum, what should be done for a critical component check? - ✔✔Raise the boom
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and rotate both ways to verify proper operation then extend/retract
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Digger Derrick test questions with accurate detailed answers
|| || || || || || ||
What does the white flag represent? - ✔✔Proposed excavation
|| || || || || || || ||
What does the pink flag represent? - ✔✔Temporary Survey Markings
|| || || || || || || || ||
What does the red flag represent? - ✔✔Electric power lines, cables, and conduits
|| || || || || || || || || || || ||
What does the yellow flag represent? - ✔✔Gas, oil, steam, petroleum, and gaseous
|| || || || || || || || || || || || ||
materials
What does the orange flag represent? - ✔✔Communications, alarms, or signal lines
|| || || || || || || || || || ||
What does the blue flag represent? - ✔✔Potable water
|| || || || || || || ||
What does the purple flag represent? - ✔✔Reclaimed water, irrigation, slurry lines
|| || || || || || || || || || ||
What does the green flag represent? - ✔✔Sewers and drain lines
|| || || || || || || || || ||
What does the OSHA standard say in 1926.959a2? - ✔✔The critical safety components of
|| || || || || || || || || || || || || ||
mechanical elevating and rotating equipment shall receive a thorough visual inspection
|| || || || || || || || || || ||
before use on each shift
|| || || ||
At minimum, what should be done for a critical component check? - ✔✔Raise the boom
|| || || || || || || || || || || || || || ||
and rotate both ways to verify proper operation then extend/retract
|| || || || || || || || ||
