QUESTIONS AND WELL VERIFIED
ANSWERS[ALREADY GRADED A+} REAL EXAM
100%
The greatest area of stress in a trench is at the: - ANS✔✔---Bottom of the trench
Trench walls that have water seeping from them tend to be: - ANS✔✔---Weaker than a dry trench
wall
Cracks in the soil surface adjacent to the trench indicates: - ANS✔✔---The trench wall could collapse
at any moment
, For trenches deeper than 4 feet a ladder must be placed every "_____" ft. - ANS✔✔---25 ft.
Deeper than "_____" ft. must be tested before entry. - ANS✔✔---4 ft. (Flammable, Explosive, Oxygen
deficient, Corrosive, Poisonous)
True or False, sloping removes material for protection? - ANS✔✔---True
What does the color red mean on a dig safe marking? - ANS✔✔---Electric
Using my own machine on my own property does not require a hoisting license in MA. - ANS✔✔---
False
80% sand is what type soil? - ANS✔✔---"C-type" soil
If I prevent a DPS inspector from doing his job, I could be fined up to: - ANS✔✔---$3000
How old must you be to get a hoisting license? - ANS✔✔---18
Grade 70 chains are ok to use for lifting. - ANS✔✔---False
The slope ratio of type B soil is: - ANS✔✔---1:1, (45 degrees)
A trench must be tested for hazardous atmosphere if it is deeper than: - ANS✔✔---4 feet
Per OSHA, who must classify soil? - ANS✔✔---Competent person
I should dig into a bank at a 45 degree angle - ANS✔✔---True