Update 2024-2025 Actual Exam from Credible
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"_______________" is the act of painting the scope of work by the excavator before
calling Digsafe. - CORRECT ANSWER: Pre-marking
80% sand is what type soil? - CORRECT ANSWER: "C-type" soil
A trench must be tested for hazardous atmosphere if it is deeper than: - CORRECT
ANSWER: 4 feet
All welding and cutting on equipment must be in accordance with: - CORRECT
ANSWER: Section IX of ASME code 520 CMR
Call Digsafe a minimum of "______hrs." notification (not including weekends and
holidays. - CORRECT ANSWER: 72 hrs.
Cave-ins usually occur in "_________". - CORRECT ANSWER: Stages
Cohesive soils are primarily made up of: - CORRECT ANSWER: Clay
Cracks in the soil surface adjacent to the trench indicates: - CORRECT ANSWER: The
trench wall could collapse at any moment
Deeper than "_____" ft. must be tested before entry. - CORRECT ANSWER: 4 ft.
(Flammable, Explosive, Oxygen deficient, Corrosive, Poisonous)
, Determining the soil type is the responsibility of the: - CORRECT ANSWER: Competent
person
For trenches deeper than 4 feet a ladder must be placed every "_____" ft. - CORRECT
ANSWER: 25 ft.
For which trench depth does federal OSHA require a protective system to be used? -
CORRECT ANSWER: Greater than 5 feet
Grade 70 chains are ok to use for lifting. - CORRECT ANSWER: False
How far back from the edge of trench must a spoil pile be? - CORRECT ANSWER: 2
feet back from the edge of trench
How much does soil weigh per cubic foot? - CORRECT ANSWER: 114 lbs.
How old must you be to get a hoisting license? - CORRECT ANSWER: 18
How wide can the bottom of an excavation be to be considered a trench? - CORRECT
ANSWER: At most 15ft wide
I should dig into a bank at a 45 degree angle - CORRECT ANSWER: True
If an excavation does not start within 30 days of notification to Digsafe.... - CORRECT
ANSWER: Markings become invalid
If I prevent a DPS inspector from doing his job, I could be fined up to: - CORRECT
ANSWER: $3000
If I rent equipment, what must I have? - CORRECT ANSWER: A valid MA hoisting
license on my person