CSP-11 CSP-11 D6.01 · Domain 6 · Occupational Health and Applied Science · 10%
Heat / Cold / IAQ
A roofing crew is working beside a heat-absorbing black surface while the break trailer has a gas-fired heater that may be backdrafting. The supervisor offers salt tablets and points to the outdoor air temperature. Your decision is to assess heat with WBGT, workload, clothing and acclimatization, and to treat possible CO as a combustion-source hazard.
Updated . Independent CSP-11 practice. Not BCSP-endorsed. No pass guarantee.
Decision rule
Heat is WBGT, work-rest, water, and source control. A vest is PPE.
Salt tablets are not engineering.
In 20 seconds
- Heat is WBGT, work-rest, water, and source control.
- A vest is PPE.
- Distinguish air temperature from WBGT heat-stress assessment.
- Calculate an illustrative indoor WBGT from its two measured components.
How to apply Heat / Cold / IAQ
THEORY: Acclimatization, shade, rest, medical watch. Cold is insulation and dryness. IAQ starts with source and ventilation. CALC: Use stem-given WBGT only. Do not invent ACGIH tables. FIELD: 38 °C WBGT die-cast cells. Engineer cooling/exhaust; vests residual. ASSESS: Water cooler as the only control while HVAC can change is the trap.
Worked case
Wrong first move: Issue vests and keep the heat source. Correct move: Cool the cells; then admin/PPE.
Why the rule holds
Related: 02, 81.
Same rule, different setting
A crew is pulling a tower on a 95 °F pad. Supervisor offers salt tablets and “hydrate harder,” and a nearby building HVAC economizer is backdrafting a heater. You are the CSP. The question is WBGT/work-rest and indoor air as design, not a tablet as engineering.
A crew is pouring on a 95 °F black roof. Supervisor offers salt tablets and “hydrate harder,” and the job-shack heater is backdrafting. You are the CSP. The question is WBGT/work-rest and indoor air as design, not a tablet as engineering.
Picture / model
Assess occupational heat with on-site WBGT plus workload, clothing and acclimatization; manage cold through wetness, wind, insulation, warming and work practices; and treat suspected carbon monoxide from combustion as an immediate source-control and air-monitoring issue.
Exam traps
Original SafePath contrasts for Heat / Cold / IAQ. These are study traps, not recalled BCSP items.
| Trap | Correct read |
|---|---|
| WBGT | Weighted wet-bulb + globe (+ dry-bulb in sun) — not dry-bulb folklore |
| Work-rest / shade / cool area | Admin + some engineering — still above salt tablets |
| Salt tablets | Not a hierarchy control; can harm |
| Cold wind chill / wet | Heat loss drivers — dry insulation, breaks, dry clothes |
| IAQ source control | Stop the emitter (backdraft, VOC) before a comfort filter |
Field move
0.7 times 28 plus 0.3 times 32 is 29.2.
Scenarios
Scenario 1 · Fundamental · CSP-11 D6.01
At an indoor workstation without solar load, natural wet-bulb temperature is 28 °C and globe temperature is 32 °C. Using WBGT = 0.7Tnwb + 0.3Tg, what is the result?
Best action: 29.2 °C, from 0.7×28 + 0.3×32.
Why: Evaluate the best response. Indoors without solar load, WBGT is 0.7 times natural wet-bulb plus 0.3 times globe. That is 0.7 times 28 plus 0.3 times 32, which is 19.6 plus 9.6, or 29.2 °C. Globe alone, an equal average, and wet-bulb alone drop a term. 32 °C, using globe temperature alone. — 32 °C u…
Scenario 2 · Applied Scenario · CSP-11 D6.01
A hot outdoor pour can be moved to morning and shaded rest is feasible. A supervisor proposes salt tablets as the entire heat plan. What should the CSP recommend?
Best action: Move the task to cooler hours, provide shade/cool rest and water, and plan acclimatization and symptom response for residual risk.
Why: Evaluate the best response. The hot outdoor pour can move to morning and shaded rest is feasible. Recommend the cooler hours, shade or cool rest, water, and a plan for acclimatization and symptoms. Tablets, impermeable coveralls, and a WBGT number alone are not that plan. Use tablets as a substitut…
Scenario 3 · Applied Scenario · CSP-11 D6.01
Under the stated outdoor sun formula WBGT = 0.7Tnwb + 0.2Tg + 0.1Tdb, the readings are 28, 36, and 34 °C respectively. What is WBGT?
Best action: 30.2 °C, from 19.6 + 7.2 + 3.4.
Why: Evaluate the best response. The stated sun formula is 0.7 times 28 plus 0.2 times 36 plus 0.1 times 34, which is 19.6 plus 7.2 plus 3.4, or 30.2 °C. 29.6 °C, from an arithmetic slip in the sum. — 29.6 °C is an arithmetic slip in that sum. 30.4 °C, applying 0.3 to globe and omitting dry-bulb. — 30.4…
If the stem says this
| Stem signal | Best direction |
|---|---|
| assess heat in context | Measure at the task, include radiant load, humidity, clothing, workload, acclimatization and vulnerable groups. |
| calculate correctly | For the illustrative indoor/no-sun WBGT form, WBGT=0.7Tnwb+0.3Tg, all in °C; sun-exposed outdoor work uses a different formula. |
| control the work | Reduce heat source, provide cool shaded rest, water, work-rest and acclimatization with worker monitoring; a salt tablet is not an engineering control. |
| treat indoor combustion | Stop exposure to a suspected backdrafting heater, isolate the source and involve qualified emergency or building personnel; assess CO and correct venting. |
Check before you leave
- ✓ Distinguish air temperature from WBGT heat-stress assessment.
- ✓ Calculate an illustrative indoor WBGT from its two measured components.
- ✓ Select cooling, rest and acclimatization measures based on work demands.
- ✓ Identify CO from a backdrafting heater as a source-control emergency, not a ventilation comfort complaint.
- ✓ Do not treat 95°F dry-bulb as WBGT.
- ✓ Indoor and outdoor-sun WBGT formulas differ.
Blueprint mapping
Heat / Cold / IAQ is the SafePath study class for CSP-11 D6.01 inside CSP-11 Domain 6, Occupational Health and Applied Science (10%). This domain combines occupational hygiene with applied science: exposure assessment, public health, toxicology, ergonomics, chemistry, and physics.
SafePath uses the publicly posted CSP-11 outline as a study map. It does not reproduce official exam content, and it is not affiliated with or endorsed by BCSP or Pearson VUE.
Practice / flashcards / formulas
More classes in Occupational Health and Applied Science
Nearby lessons mapped to the same CSP-11 domain.
CSP-11 D6.01
Other classes on this task
Guides that use Heat / Cold / IAQ
- CSP calculationsIncident rates, noise, ventilation, and unit checks
- Formula deskNamed expressions used in occupational-health items
- Manufacturing safety study guideExposure, noise, and process controls
- CSP-11 exam prep guideDomain weights, sample items, and a study sequence
- CSP-11 blueprint and weightsSeven published domains and the class map
Heat / Cold / IAQ study questions
- What decision does the Heat / Cold / IAQ class train?
- Heat is WBGT, work-rest, water, and source control. A vest is PPE. This is independent SafePath CSP practice for CSP-11 D6.01. It is not an official BCSP item and it is not a pass guarantee.
- What exam trap shows up in Heat / Cold / IAQ?
- A common miss treats this as sufficient: WBGT The stronger read is: Weighted wet-bulb + globe (+ dry-bulb in sun) — not dry-bulb folklore
- How does Heat / Cold / IAQ map to the CSP-11 blueprint?
- SafePath maps this class to CSP-11 D6.01 in Domain 6, Occupational Health and Applied Science (10% of the published blueprint). Use the public outline for study planning. SafePath is not affiliated with or endorsed by BCSP.
Verify
Verify: Confirm current certification requirements with BCSP and technical requirements with the cited authoritative standard.