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NATIONAL GRID TASK -71 OPERATOR EXCAVATION AND BACKFILLING QUESTIONS AND ANSWERS GRADED A+

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NATIONAL GRID TASK -71 OPERATOR EXCAVATION AND BACKFILLING QUESTIONS AND ANSWERS GRADED A+

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NATIONAL GRID TASK -71 OPERATOR EXCAVATION

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NATIONAL GRID TASK -71 OPERATOR EXCAVATION

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Institution: NATIONAL GRID TASK -71 OPERATOR EXCAVATION
Course: NATIONAL GRID TASK -71 OPERATOR EXCAVATION

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Uploaded on: December 4, 2025
Number of pages: 4
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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national grid task 71 operator excavation and bac

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NATIONAL GRID TASK -71 OPERATOR EXCAVATION AND BACKFILLING
QUESTIONS AND ANSWERS GRADED A+
Soil class is type c and its the least stable - (answers)What type of soil class is used for national grid and
how stable is it?

BEPM - Butane, Ethane, Propane, Methane - (answers)What are the natural gases?

for all excavations at a depth of 5 feet or more - (answers)When is shoring mandatory?

electric - powerlines, cables, conduit, and lighting cables - (answers)RED utility markings is

communication - alarm or signal lines, cables or conduits - (answers)ORANGE utility markings is

gas - oil, steam, petroleum, or gaseous materials - (answers)YELLOW utility markings is

sewer - sewers and drain lines - (answers)GREEN utility markings is

water - potable water - (answers)BLUE utility markings is

slurry lines - reclaimed water, irrigation or slurry lines - (answers)PURPLE utility markings is

temporary survey markings - (answers)PINK utility markings is

proposed excavation - (answers)WHITE utility markings is

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NATIONAL GRID TASK -71 OPERATOR EXCAVATION AND BACKFILLING QUESTIONS AND ANSWERS GRADED A+

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