Osha 30 Construction Excavation UPDATED Exam Questions and CORRECT Answers

Osha 30 Construction Excavation
UPDATED Exam Questions and
CORRECT Answers

when your trench is deeper than 4 feet and hazards may be present air monitoring must be
done before entry - Correct Answer- A. true


Excavation safety standards have introduced in 1989 - Correct Answer- A. true


To be classified as type a the soil cannot be - Correct Answer- E. all of the above


each of the following is a type b soil except - Correct Answer- D. sand


A soil are usually clays and cemented soil such as caliche and hardpan - Correct Answer- A.
true


Which of the following are common soil classification tests - Correct Answer- E. all except c


the most important distinction between stable rock types is - Correct Answer- C. degree of
stability


the definition of type c 60 soil is provided by manufacturers to allow the competent person an
opportunity to use vertical shores or other protective systems in accordance with tables
provided by the manufacturer - Correct Answer- A. true


A defining feature of stable rock is that it will - Correct Answer- B. remain intact while
exposed


Osha requires that the competent person perform two visual and two manual tests - Correct
Answer- B. False


A soil cannot be type a if it is - Correct Answer- D. all of the above