CHST 3 EXAM QUESTIONS AND ANSWERS (ALL CORRECT) 2024 NEWEST VERSION
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CHST 3 EXAM QUESTIONS AND ANSWERS (ALL CORRECT) 2024 NEWEST VERSION
Formula for Outdoor heat stress situations: - Answer WBGT = 0.7 x Wet Bulb Temperature + 0.2 x Globe Temperature + 0.1 x Reference temperature
Heatstroke is characterized by a markedly elevated body temperature —generally gr...
CHST 3 EXAM QUESTIONS
AND ANSWERS (ALL
CORRECT) 2024 NEWEST
VERSION
Formula for Outdoor heat stress situations: - Answer ✔ WBGT = 0.7 x Wet Bulb
Temperature + 0.2 x Globe Temperature + 0.1 x Reference temperature
Heatstroke is characterized by a markedly elevated body temperature —generally
greater than 104 - Answer ✔ 104 degrees Fahrenheit
All accidents, incidents, and "near-miss" occurrences at work sites should be - Answer
✔ investigated even if they result in property damage only or have no visible damage
whatsoever.
OSHA accident incident rate of injury - Answer ✔ Injuries divided by hours worked times
200 000
Individual heat stress monitoring is recommended when the worker is under heavy
loads (burning ? kcal./ hr) and the temperature is at least ? degrees F. Oral temperature
and water loss must be measured, along with heart rate monitoring. - Answer ✔
500kcal/69.9 F
The work cycle should be shortened for any worker whose oral temperature exceeds ?
degrees Centigrade or ? Fahrenheit degrees. - Answer ✔ 37.6 C or 99.68 F
Body water weight loss should not be more than ? percent of total body weight per day.
Fluid intake should be increased if loss approaches that amount. - Answer ✔ 1.5
percent
Body water loss measurements are taken by weighing the worker at the beginning and
end of each day.
FMEA can provide mathematical predictions about the - Answer ✔ expected rate of
failure for the process.
, Exit discharge refers to an exit which leads - Answer ✔ directly to an outdoor area or
street
Exit routes are different from exit discharges in that they - Answer ✔ do not necessarily
pass out into a street, yard, or open area away from the building.
An exit route is an - Answer ✔ unobstructed walking traffic pattern which leads to any
place of relative safety. An exit route, for example, commonly leads to a refuge area.
Refuge areas are - Answer ✔ places along an exit route which have fire resistant
protections which will retard the advance of flames and smoke.
In order to meet the conditions of being classified as a chemical accident or release, the
occurrence must meet one or more of the following criteria: - Answer ✔ A chemical
accident or release must result in one or more human fatalities.
A chemical accident or release must result in the hospitalization of three or more
workers or non-employees in the vicinity.
A chemical accident or release is such that it causes an estimated half million dollars in
property damage. Such damage can occur at the construction site or offsite.
A chemical accident or release causes evacuation, environmental contamination, or
closure of transportation routes.
Emergencies involves - Answer ✔ Release of toxic substances in high concentrations.
Imminent danger to life and health (IDLH). Oxygen deficient environments where
employees could suffocate or sustain damage to respiratory systems.
Clear danger of fire and explosion.
Most emergency situations require evacuation of an area because of the danger posed
to employees.
An incident command system is - Answer ✔ directed by a Unified Command which
develops and implements overall strategies involving fire departments, police, hazmat
teams, or other agencies.
A HAZMAT team is - Answer ✔ an organized group of workers designated to handle
and control leaks or spills of hazardous materials.
Before marching into a site where hazards may be yet unknown, the HAZMAT team
surveys and monitors the site by: - Answer ✔ Assessing the level of threat for IDLH
(Immediate Danger to Life and Health) or ionizing radiation.
Monitoring for ionizing radiation with test equipment which measures such radiation.
Employ gas meters and detector tubes to measure conditions which may cause death
or serious harm. Content levels of oxygen are frequently measured in earth cavities
which result from cave-in, for example. Ground samples or plugs may be taken for
laboratory assessment of toxicity.
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