A straight 95-foot trench is at least 4 feet deep with unobstructed walking along its length. This layout requires safe access at both ends. Considering only the 25-foot maximum lateral travel to an access point, what minimum total number of access points is needed?
Correct Answer
A) 3 points.
Three points at 0, 47.5 and 95 feet give at most 23.75 feet of travel. Endpoints alone leave 47.5 feet at the midpoint. Thus three is the minimum for this stated layout; the rule limits worker travel, not point spacing. Source: https://www.dir.ca.gov/title8/1541.html
Why This Is the Correct Answer
Three points at 0, 47.5 and 95 feet give at most 23.75 feet of travel. Endpoints alone leave 47.5 feet at the midpoint. Thus three is the minimum for this stated layout; the rule limits worker travel, not point spacing. Source: https://www.dir.ca.gov/title8/1541.html
Independent practice; verify any reference hint against the edition and category permitted for your booking. Official exam and reference-list sources →
More Class B Trade Questions
An attic furnace platform blocks required access to service panels. What should be maintained?
A panel edge called out for blocking in the structural notes is left unsupported. What should be installed?
A new dwelling laundry area has a 125-volt, 20-ampere receptacle supplied by a 120-volt single-phase circuit, without required personnel ground-fault interruption. Which protection is missing?
Which listed hazard is directly increased by carrying a forklift load high while traveling through a doorway?
A penetration through a rated gypsum wall is patched with ordinary joint compound only. What must be maintained?
A shear wall panel is installed but the specified edge nailing is missing at panel edges. What is the issue?
A service panel is installed where stored material blocks the working area. What must be maintained?
A fire-rated wall patch is finished with standard materials without matching the tested assembly. What must be preserved?
A joist hanger is installed with drywall screws instead of the fasteners specified by the hardware manufacturer. What should be corrected?
A field change includes 28 added labor-hours at $69 per hour plus $880 in material. What direct cost should be priced before markup?