Question 1

Some of the benefits of acclimatization can be lost in as little as two or three days.

Accepted Answer

A) True 
 B)False  True

Question 2

Heat stress is net heat load to which a worker is exposed.

Accepted Answer

A) True 
 B)False  True

Question 3

Wind chill factor is the cooling effect produced by a combination of temperature, wind, velocity, and/or air movement.

Accepted Answer

A) True 
 B)False  True

Question 4

What would be comfortable humidex level?

Accepted Answer

A)  Humidex level below 29°C 
B)  Humidex level 30°C to 39°C 
C)  Humidex level 40°C to 45°C 
D)  Humidex level over 45°C 
E)  Humidex level equal to body temperature 
A)  Humidex level below 29°C 
B)  Humidex level 30°C to 39°C 
C)  Humidex level 40°C to 45°C 
D)  Humidex level over 45°C 
E)  Humidex level equal to body temperature

Question 5

The skin serves several important purposes including the following: protection of body tissue, sensation, excretion, and respiration.

Accepted Answer

A) True 
 B)False

Question 6

What would be the body's response if the core temperature was 33°C?

Accepted Answer

A)  Metabolic rate increases 
B)  Pronounced shivering 
C)  Severe hypothermia 
D)  Progressive loss of consciousness begins 
E)  Pulmonary 
A)  Metabolic rate increases 
B)  Pronounced shivering 
C)  Severe hypothermia 
D)  Progressive loss of consciousness begins 
E)  Pulmonary

Question 7

Convection is the transfer of heat between two bodies that are touching or from one location to another within a body.

Accepted Answer

A) True 
 B)False

Question 8

Temperature, humidity, air distribution, personal preference, and acclimatization are all determinants of comfort in the workplace.

Accepted Answer

A) True 
 B)False

Question 9

Humidex levels between 30°C to 39°C are generally considered dangerous.

Accepted Answer

A) True 
 B)False

Question 10

Third-degree burns are minor and result only in a mild inflammation of the skin, known as erythema.

Accepted Answer

A) True 
 B)False

Question 11

What is the most important factor affecting the severity of a burn?

Accepted Answer

A)  Age of victim 
B)  Location of burn 
C)  Amount of burned area 
D)  Depth to which burn penetrates 
E)  The source of heat 
A)  Age of victim 
B)  Location of burn 
C)  Amount of burned area 
D)  Depth to which burn penetrates 
E)  The source of heat

Question 12

Core body temperature that is greater than 37.5°C is a sign of heat strain.

Accepted Answer

A) True 
 B)False

Question 13

ACGIH recommends the same work/rest schedule for acclimatized and non-acclimatized workers.

Accepted Answer

A) True 
 B)False

Question 14

What percentage of body surface (BSA) area is represented by one leg and one arm?

Accepted Answer

A)  18% of BSA 
B)  27% of BSA 
C)  36% of BSA 
D)  45% of BSA 
E)  50% of BSA 
A)  18% of BSA 
B)  27% of BSA 
C)  36% of BSA 
D)  45% of BSA 
E)  50% of BSA

Question 15

What is the maximum temperature in which an acclimatized worker may perform heavy work safely?

Accepted Answer

A)  24.5 degrees Celsius 
B)  26 degrees Celsius 
C)  27.5 degrees Celsius 
D)  28.5 degrees Celsius 
E)  30.0 degrees Celsius 
A)  24.5 degrees Celsius 
B)  26 degrees Celsius 
C)  27.5 degrees Celsius 
D)  28.5 degrees Celsius 
E)  30.0 degrees Celsius

Question 16

Critical burns are second-degree burns covering what percent of BSA (Body Surface Area)?

Accepted Answer

A)  5% 
B)  10% 
C)  15% 
D)  20% 
E)  30% 
A)  5% 
B)  10% 
C)  15% 
D)  20% 
E)  30%

Question 17

The wet bulb globe temperature is a measure of the heat stress in direct sunlight, which takes into account temperature, humidity, wind speed, and solar heat load.

Accepted Answer

A) True 
 B)False

Question 18

First-degree burns are classified as critical burns.

Accepted Answer

A) True 
 B)False

Question 19

According to ACGIH, what is the maximum recommended time a worker should be permitted to work outside if the temperature is -38°C and the wind is 20kp/h?

Accepted Answer

A)  75 minutes 
B)  55 minutes 
C)  40 minutes 
D)  30 minutes 
E)  Non-emergency work is prohibited 
A)  75 minutes 
B)  55 minutes 
C)  40 minutes 
D)  30 minutes 
E)  Non-emergency work is prohibited

Question 20

Hypothermia is the condition that results when the body's core temperature drops below 35°C (95°F).

Accepted Answer

A) True 
 B)False

Exam 18: Hazards of Temperature Extremes and Chemical Burns

Some of the benefits of acclimatization can be lost in as little as two or three days.

Heat stress is net heat load to which a worker is exposed.

Wind chill factor is the cooling effect produced by a combination of temperature, wind, velocity, and/or air movement.

What would be comfortable humidex level?

The skin serves several important purposes including the following: protection of body tissue, sensation, excretion, and respiration.

What would be the body's response if the core temperature was 33°C?

Convection is the transfer of heat between two bodies that are touching or from one location to another within a body.

Temperature, humidity, air distribution, personal preference, and acclimatization are all determinants of comfort in the workplace.

Humidex levels between 30°C to 39°C are generally considered dangerous.

Third-degree burns are minor and result only in a mild inflammation of the skin, known as erythema.

What is the most important factor affecting the severity of a burn?

Core body temperature that is greater than 37.5°C is a sign of heat strain.

ACGIH recommends the same work/rest schedule for acclimatized and non-acclimatized workers.

What percentage of body surface (BSA) area is represented by one leg and one arm?

What is the maximum temperature in which an acclimatized worker may perform heavy work safely?

Critical burns are second-degree burns covering what percent of BSA (Body Surface Area)?

The wet bulb globe temperature is a measure of the heat stress in direct sunlight, which takes into account temperature, humidity, wind speed, and solar heat load.

First-degree burns are classified as critical burns.

According to ACGIH, what is the maximum recommended time a worker should be permitted to work outside if the temperature is -38°C and the wind is 20kp/h?

Hypothermia is the condition that results when the body's core temperature drops below 35°C (95°F).

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