For utility trenching in California, what is the maximum allowable slope for Type B soil without shoring when the excavation depth is 8 feet?
Correct Answer
A) 1:1 (horizontal to vertical)
Cal/OSHA Section 1541.1 specifies that Type B soil requires a maximum slope of 1:1 (45 degrees) for excavations. This is more restrictive than federal OSHA standards and reflects California's seismic conditions and soil characteristics that require enhanced safety measures for worker protection.
Why This Is the Correct Answer
Cal/OSHA Section 1541.1 specifies that Type B soil requires a maximum slope of 1:1 (45 degrees) for excavations. This is more restrictive than federal OSHA standards and reflects California's seismic conditions and soil characteristics that require enhanced safety measures for worker protection.
More trade-general-building Questions
When installing engineered lumber joists (I-joists) in California residential construction, what is the primary code requirement for web stiffeners?
What is the required attic ventilation ratio when a vapor retarder is installed on the warm-in-winter side of the ceiling according to the California Residential Code?
In California's Wildland-Urban Interface (WUI) areas, which underlayment requirement applies to Class A fire-rated roof assemblies?
In California, when installing a tankless water heater in a seismic zone, what additional requirement must be met beyond standard installation practices?
According to the California Building Code (CBC), what is the minimum lap splice length for #4 rebar in a concrete foundation wall in normal weight concrete with f'c = 3000 psi?
According to CBC requirements for retaining walls in California, what additional design consideration must be addressed for retaining walls over 4 feet in height located in seismic design categories D, E, and F?
When constructing retaining walls in California that exceed 4 feet in height, which CBC requirement must be met regarding drainage?
Under California regulations, when is a reduced pressure principle (RPP) backflow prevention assembly required for a residential water service connection?
Under California Title 24, what is the minimum electrical service size required for new single-family residential construction?
According to the California Building Code, buildings located in Seismic Design Category D must comply with which specific seismic design requirements?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass
Project Management
60 questions · 70% to pass
Related Study Resources
Previous Question
What is the minimum bearing length required for floor joists bearing on wood sill plates or girders according to the California Residential Code?
Next Question
According to California's Title 24 Energy Code, what is the maximum allowable fenestration area as a percentage of conditioned floor area for residential buildings in Climate Zone 16 (hot climates)?