Struck-By, Equipment, Cranes, Hoisting, and Rigging
Equipment questions test mechanized equipment, struck-by hazards, material handling, cranes, hoisting, rigging, load control, hand signals, work zones, and exclusion areas.
How to study for CHST
Use the CHST5 blueprint as a jobsite safety map: identify the hazard, choose controls, document the program element, and communicate the action clearly to crews and supervisors.
Core concepts
Concept 1
Struck-By, Equipment, Cranes, Hoisting, and Rigging questions reward the answer that follows the official source, the professional role, and the stated facts.
Exam cue: Identify the candidate role, client or public risk, source rule, calculation, or process step being tested.
Concept 2
The strongest answer identifies the rule, safety concern, ethical duty, calculation, client factor, or process step before acting.
Exam cue: Check whether the fact pattern is using a national standard, jurisdiction rule, handbook policy, or scenario-specific instruction.
Concept 3
Eliminate answers that ignore requirements, skip documentation, overreach the role, or treat convenience as the standard.
Exam cue: Choose the compliant and professionally scoped answer before the convenient or familiar answer.
Risk pitfalls and guardrails
Treating related standards as interchangeable without checking the source.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Skipping screening, documentation, authorization, sanitation, recordkeeping, or other required procedure.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Choosing an answer that protects convenience instead of client safety, public protection, or the stated professional duty.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Memory anchors
Struck-By
Struck-by prevention uses traffic control, exclusion zones, spotters, visibility, securing loads, and overhead protection.
Mobile Equipment
Mobile equipment controls include inspections, operator authorization, backup alarms, seat belts, routes, and separation.
Crane Operation
Crane safety requires capacity, setup, ground conditions, swing radius, communication, powerline clearance, and inspections.
Rigging
Rigging requires rated components, sling angle awareness, balance, hitch selection, inspection, and qualified direction.
Load Chart
Load charts depend on radius, boom length, configuration, counterweight, outrigger position, and load weight.
Tagline
Taglines can control load rotation when they do not create additional entanglement or pinch hazards.
Exclusion Zone
Exclusion zones keep workers away from suspended loads, swing radii, pinch points, and struck-by paths.
Material Handling
Material handling controls address storage, lifting, stacking, stability, access, and ergonomic exposure.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A load weighs 4,000 pounds and is lifted by two vertical slings sharing the load equally. What load does each sling carry?
A crane has a rated capacity of 20,000 pounds at a given radius. A planned lift is 15,000 pounds. What percent of capacity is the lift?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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