Osha 30 construction excavation UPDATED ACTUAL Exam Questions and CORRECT Answers

Osha 30 construction excavation UPDATED
ACTUAL 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