Heat Stress Laboratory

Question 1

Enumerate 9 factors affecting an indiv’s sensitivity to heat

Answer 1

Factors Affecting an Indivi dual’s Sensitivity to Heat

1. Age
2. Weight
3. Degree of Physical Fitness
4. Degree of Acclimatization
5. Metabolism
6. Use of Alcohol or Drugs
7. Certain Medical Conditions
8. Type of Clothing Worn
9. Prior Heat Injury

Question 2

enumerate 5 envt factors affecting heat load

Answer 2

1. Ambient Air Temperature
2. Radiant Heat
3. Air Movement
4. Conduction
5. Relative Humidity

Question 3

For continuous all-day or several hour exposures, the __should be averaged over a 60-minute period
Intermittent exposures should be averaged over a 120-minute period.

Answer 3

Wet Bulb Globe Temperature Index

Question 4

Heat stress monitor: 3 parts? enumerate

Answer 4

A.dry-bulb temperature
B.natural wet-bulb temperature
C.globe temp

Question 5

[Heat Stress Monitor]
measures air temp
A.dry-bulb temperature
B.natural wet-bulb temperature 
C.globe temp

Answer 5

A

Question 6

[Heat Stress Monitor]
measures air humidity
A.dry-bulb temperature
B.natural wet-bulb temperature 
C.globe temp

Answer 6

B

Question 7

[Heat Stress Monitor]
measures radiant heat
A.dry-bulb temperature
B.natural wet-bulb temperature 
C.globe temp

Answer 7

C

Question 8

[Average Wet Globe Temp]
For indoor and outdoor conditions with no solar load,
what is the formula?

Answer 8

WBGT = 0.7 NWB + 0.3 GT

Question 9

[Average Wet Globe Temp]
For outdoor conditions with solar load,
what is the formula?

Answer 9

WBGT = 0.7 NWB + 0.2GT + 0.1DB

Question 10

enumerate 4 types of auxiliary body cooling

Answer 10

 Ice vests
 Wetted clothing
 Water-cooled garments
 Circulating air

Question 11

two general types of PPE for heat stress=enumerate & indicate which should be worn loosely

Answer 11

1. reflective clothing - must be worn loosely

2. auxiliary body cooling