CSCS Green Card Practice Test
CSCS - Construction Skills Certification Scheme Green Card CSCS Excavation Safety
What is the primary purpose of installing trench boxes during excavation work on a construction site?
Select your answer
A
To store tools and materials underground
B
To prevent the collapse of trench sides and protect operatives working within the excavation
C
To channel rainwater away from the trench
D
To mark the boundaries of the excavation for surveying
Hint
