Heat Stress & Cold Stress Awareness Exam 2026–2027 –
Certification on Recognizing, Preventing, and
Responding to Temperature-Related Hazards in Field
Operations
1. Which of the following is the primary cause of heat stress?
A) High humidity and wind
B) High temperatures combined with physical exertion
C) Low hydration
D) Cold environments
Heat stress occurs when the body is unable to cool itself effectively
during hot conditions and physical activity.
2. What is the most effective way to prevent heat stress?
A) Wearing heavy clothing
B) Frequent hydration and rest breaks
C) Reducing clothing ventilation
D) Ignoring early symptoms
Hydration and periodic rest help the body maintain a safe core
temperature.
3. Which symptom indicates early stages of heat exhaustion?
A) Shivering
B) Numbness in fingers
C) Profuse sweating and fatigue
D) Slow heart rate
, Early heat exhaustion often presents as heavy sweating, fatigue,
dizziness, and weakness.
4. Heat stroke is considered a medical emergency because:
A) It can cause organ failure or death if untreated
B) It always resolves on its own
C) It only affects the elderly
D) It is mild and self-limiting
Heat stroke is life-threatening due to the body’s inability to
regulate temperature.
5. Which of these is a common personal protective measure against
heat stress?
A) Wearing non-breathable clothing
B) Ignoring hydration
C) Light, breathable clothing and hats
D) Increasing caffeine intake
Light clothing and head protection help reduce heat absorption
and improve cooling.
6. In cold environments, frostbite affects which part of the body
first?
A) Torso
B) Fingers, toes, nose, and ears
C) Arms and legs
D) Neck
, Extremities are most vulnerable to frostbite due to reduced blood
flow.
7. Which of the following is a sign of hypothermia?
A) Sweating
B) Flushed skin
C) Shivering and confusion
D) Rapid breathing
Hypothermia occurs when core body temperature drops, leading
to uncontrolled shivering and mental confusion.
8. What is the recommended first action if someone shows signs of
heat stroke?
A) Give them coffee
B) Call emergency services and move them to a cool area
C) Have them continue working
D) Make them lie in the sun
Immediate cooling and professional medical care are critical in
heat stroke.
9. Cold stress can be prevented by:
A) Wearing single-layer clothing
B) Layering clothing and keeping dry
C) Reducing fluid intake
D) Avoiding shelter
, Multiple layers trap heat, and dry clothing helps prevent body heat
loss.
10. Which of these factors increases heat stress risk the most?
A) Low physical activity
B) High humidity combined with high temperature
C) Cold wind
D) Moderate hydration
High humidity reduces the effectiveness of sweating, raising the
risk of heat stress.
11. What is the most accurate way to monitor heat stress risk on
the job site?
A) Temperature alone
B) Heat Index or Wet Bulb Globe Temperature (WBGT)
C) Number of workers present
D) Wind direction
WBGT combines temperature, humidity, wind, and solar radiation
to assess heat risk accurately.
12. Heat cramps are primarily caused by:
A) Dehydration and low electrolytes
B) Muscle fatigue combined with fluid and electrolyte loss
C) Cold exposure
D) Sunburn
Certification on Recognizing, Preventing, and
Responding to Temperature-Related Hazards in Field
Operations
1. Which of the following is the primary cause of heat stress?
A) High humidity and wind
B) High temperatures combined with physical exertion
C) Low hydration
D) Cold environments
Heat stress occurs when the body is unable to cool itself effectively
during hot conditions and physical activity.
2. What is the most effective way to prevent heat stress?
A) Wearing heavy clothing
B) Frequent hydration and rest breaks
C) Reducing clothing ventilation
D) Ignoring early symptoms
Hydration and periodic rest help the body maintain a safe core
temperature.
3. Which symptom indicates early stages of heat exhaustion?
A) Shivering
B) Numbness in fingers
C) Profuse sweating and fatigue
D) Slow heart rate
, Early heat exhaustion often presents as heavy sweating, fatigue,
dizziness, and weakness.
4. Heat stroke is considered a medical emergency because:
A) It can cause organ failure or death if untreated
B) It always resolves on its own
C) It only affects the elderly
D) It is mild and self-limiting
Heat stroke is life-threatening due to the body’s inability to
regulate temperature.
5. Which of these is a common personal protective measure against
heat stress?
A) Wearing non-breathable clothing
B) Ignoring hydration
C) Light, breathable clothing and hats
D) Increasing caffeine intake
Light clothing and head protection help reduce heat absorption
and improve cooling.
6. In cold environments, frostbite affects which part of the body
first?
A) Torso
B) Fingers, toes, nose, and ears
C) Arms and legs
D) Neck
, Extremities are most vulnerable to frostbite due to reduced blood
flow.
7. Which of the following is a sign of hypothermia?
A) Sweating
B) Flushed skin
C) Shivering and confusion
D) Rapid breathing
Hypothermia occurs when core body temperature drops, leading
to uncontrolled shivering and mental confusion.
8. What is the recommended first action if someone shows signs of
heat stroke?
A) Give them coffee
B) Call emergency services and move them to a cool area
C) Have them continue working
D) Make them lie in the sun
Immediate cooling and professional medical care are critical in
heat stroke.
9. Cold stress can be prevented by:
A) Wearing single-layer clothing
B) Layering clothing and keeping dry
C) Reducing fluid intake
D) Avoiding shelter
, Multiple layers trap heat, and dry clothing helps prevent body heat
loss.
10. Which of these factors increases heat stress risk the most?
A) Low physical activity
B) High humidity combined with high temperature
C) Cold wind
D) Moderate hydration
High humidity reduces the effectiveness of sweating, raising the
risk of heat stress.
11. What is the most accurate way to monitor heat stress risk on
the job site?
A) Temperature alone
B) Heat Index or Wet Bulb Globe Temperature (WBGT)
C) Number of workers present
D) Wind direction
WBGT combines temperature, humidity, wind, and solar radiation
to assess heat risk accurately.
12. Heat cramps are primarily caused by:
A) Dehydration and low electrolytes
B) Muscle fatigue combined with fluid and electrolyte loss
C) Cold exposure
D) Sunburn
