Construction safety math: slopes, fall arrest and sling tension
CHST written lesson, 9 min read. CHST Domain 1: Hazard and Risk Identification and Control
AI-drafted from the cited rules and fact-checked against them. Study aid, not site-specific safety advice. The official rule controls.
What you'll learn
- Apply the maximum allowable slopes to a simple slope excavation
- Calculate the top width of a trench cut at a given slope
- State the free fall and deceleration limits for a fall arrest system
- Calculate sling leg tension using a load angle factor
- Decide how many sling legs may be counted as carrying a load
What this lesson covers
This lesson covers three numbers-driven areas of construction safety: maximum allowable slopes for shallow simple slope excavations, free fall and deceleration limits on a fall arrest system, and how sling angle raises leg tension. Exam questions apply a stated limit or one short formula.
This lesson is included with a pass
Written lessons come with every CHST pass, along with the video lessons, the question bank, mocks and the tutor. $80 per exam or $143 for all three, for 180 days.
Try the free construction safety math: noise and excavation slopes practice questions
Visualize this
- Pick the soil and the depth and watch the maximum allowable slope redraw.
- Move the anchor, the lanyard and the deceleration distance and watch where the worker stops.
An interactive diagram, included with every CHST pass.