NGA 70 & 71 PROMETRICS Exam
Questions and Answers Graded A+
Shoring is mandatory for all excavations at what depth - Correct answer-5 feet or
more
Electrical lines - Correct answer-Red
Gas/fuel lines - Correct answer-Yellow
Communications - Correct answer-Orange
Potable/drinking water - Correct answer-Blue
Reclaimed irrigation water - Correct answer-Purple
Sewer - Correct answer-Green
Survey - Correct answer-Pink
Proposed excavation - Correct answer-White
Continue backfilling and compaction with a hand or mechanical tamper at how
many inches - Correct answer-6-12 inches
Who do you call before any excavation - Correct answer-811
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, How often do you check proper compaction - Correct answer-Every 25 feet
What do you do when a gas is being undermined - Correct answer-Make sure you
have support
How far should soil be from the trench - Correct answer-2 feet
What is the most common soil being used - Correct answer-Type c soil
Who is responsible for mark outs - Correct answer-The excavator
At what percent in the atmosphere does it become oxygen deficient - Correct
answer-19.5%
What do you do when you uncover an unknown facility - Correct answer-Call 811
and recheck company records
What does a job brief include - Correct answer-Proper PPE, tools for the job,
control all energy sources, and hazards associated with the job
If a 3rd party was found to be working around transmission lines without a proper
mark out what should you do - Correct answer-Request a work stoppage due to
code violation
At what depth is a ladder required - Correct answer-4 feet
What is the tolerance zone of a pipe - Correct answer-2 feet plus 1/2 the diameter
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Questions and Answers Graded A+
Shoring is mandatory for all excavations at what depth - Correct answer-5 feet or
more
Electrical lines - Correct answer-Red
Gas/fuel lines - Correct answer-Yellow
Communications - Correct answer-Orange
Potable/drinking water - Correct answer-Blue
Reclaimed irrigation water - Correct answer-Purple
Sewer - Correct answer-Green
Survey - Correct answer-Pink
Proposed excavation - Correct answer-White
Continue backfilling and compaction with a hand or mechanical tamper at how
many inches - Correct answer-6-12 inches
Who do you call before any excavation - Correct answer-811
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, How often do you check proper compaction - Correct answer-Every 25 feet
What do you do when a gas is being undermined - Correct answer-Make sure you
have support
How far should soil be from the trench - Correct answer-2 feet
What is the most common soil being used - Correct answer-Type c soil
Who is responsible for mark outs - Correct answer-The excavator
At what percent in the atmosphere does it become oxygen deficient - Correct
answer-19.5%
What do you do when you uncover an unknown facility - Correct answer-Call 811
and recheck company records
What does a job brief include - Correct answer-Proper PPE, tools for the job,
control all energy sources, and hazards associated with the job
If a 3rd party was found to be working around transmission lines without a proper
mark out what should you do - Correct answer-Request a work stoppage due to
code violation
At what depth is a ladder required - Correct answer-4 feet
What is the tolerance zone of a pipe - Correct answer-2 feet plus 1/2 the diameter
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
