Heat and Cold Stress Course 2026
This course is for security guards and other workers in Canada who work outdoors or in very hot or cold places. It covers how heat and cold affect the body, the warning signs of heat illness and cold injury, first steps to take and how to prevent harm. It is background knowledge only and does not replace a first aid course or your employer's heat and cold plans.
إجابة سريعة
تتضمن هذه الدورة المجانية نحو 25 دقيقة من الدروس واختبارًا يضم 25 من الأسئلة. احصل على 80% أو أكثر لتنزيل شهادة إتمام (خاصة، غير معتمدة). تمت مراجعته مقارنةً بالمصادر الرسمية في 13 أكتوبر 2026.
ما ستتعلمه
- Explain heat stress, humidex and wind chill in plain terms
- Recognize the signs of heat exhaustion and heat stroke
- Take the right first steps for heat stroke and hypothermia
- Prevent heat stress with water, acclimatization and planning
- Recognize frostnip, frostbite and trench foot
- Dress in layers and plan warm-up breaks for cold work
احصل على 80% أو أكثر لتنزيل شهادتك.
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السؤال 1 من 25
أظهر الإجابة
الإجابة: A. About 37°C
CCOHS says the body normally keeps its core temperature near 37°C. A change of more than 1°C signals a problem.
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السؤال 2 من 25
أظهر الإجابة
الإجابة: B. The total heat load on a worker from work, surroundings and clothing
CCOHS describes heat stress as the overall heat load from metabolic heat, environmental factors and clothing.
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السؤال 3 من 25
أظهر الإجابة
الإجابة: D. How hot it feels when heat and humidity combine
Humidex estimates how hot people feel when warm temperatures and humidity combine, much like wind chill does for cold.
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السؤال 4 من 25
أظهر الإجابة
الإجابة: B. Dangerous; heat stroke possible
CCOHS rates a humidex of 46 and over as dangerous, with heat stroke possible.
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السؤال 5 من 25
أظهر الإجابة
الإجابة: A. To take every reasonable precaution to protect workers
Ontario's guidance says employers must take every reasonable precaution in the circumstances to protect workers, which may include protection from heat stress.
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السؤال 6 من 25
أظهر الإجابة
الإجابة: C. Do a heat stress assessment and make an exposure control plan
Section 7.29 of BC's OHS Regulation requires a heat stress assessment and a heat stress exposure control plan.
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السؤال 7 من 25
أظهر الإجابة
الإجابة: A. Heat cramps
CCOHS says heat cramps are caused by a salt imbalance from heavy sweating. Move to a cool area and drink fluids.
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السؤال 8 من 25
أظهر الإجابة
الإجابة: B. Heavy sweating, pale moist skin, nausea and thirst
CCOHS lists heavy sweating, weakness, dizziness, nausea, headache, thirst and pale, cool, moist skin as signs of heat exhaustion.
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السؤال 9 من 25
أظهر الإجابة
الإجابة: C. Call 911, then start cooling them right away
Confusion and odd behaviour in the heat point to heat stroke, a medical emergency. Call 911 and cool the person while you wait.
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السؤال 10 من 25
أظهر الإجابة
الإجابة: B. Yes, sweating does not rule out heat stroke
CCOHS notes that exertional heat stroke, after hard work or exercise, often comes with sweating, so sweat does not rule it out.
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السؤال 11 من 25
أظهر الإجابة
الإجابة: A. Head, neck, armpits and groin
CCOHS first aid for heat stroke includes cold, wet cloths or ice on the head, neck, armpits and groin, after calling 911.
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السؤال 12 من 25
أظهر الإجابة
الإجابة: D. About 250 mL every 20 minutes
CCOHS suggests about one cup (250 mL) every 20 minutes, even without thirst, and no more than 1.5 litres an hour.
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السؤال 13 من 25
أظهر الإجابة
الإجابة: A. The body adjusting to heat over several days
Acclimatization is the set of changes in the body after several days of heat exposure that help it cope with heat.
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السؤال 14 من 25
أظهر الإجابة
الإجابة: D. No more than 20% of normal
CCOHS suggests no more than 20% exposure on day 1, adding no more than 20% on each extra day.
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السؤال 15 من 25
أظهر الإجابة
الإجابة: C. 9 days or more
Ontario's heat stress guidance says workers returning after being ill or away for 9 or more days need to re-adjust to the heat gradually.
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السؤال 16 من 25
أظهر الإجابة
الإجابة: D. In the cooler morning or evening
CCOHS and Ontario both advise moving strenuous work to cooler times of the day.
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السؤال 17 من 25
أظهر الإجابة
الإجابة: D. Below 35°C
CCOHS says hypothermia happens when the core body temperature falls below 35°C.
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السؤال 18 من 25
أظهر الإجابة
الإجابة: C. Warm their chest, armpits and groin with blankets
CCOHS says to handle the person gently, warm the upper body such as the chest, armpits and groin, not rub the skin and not rewarm too quickly with a hot bath.
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السؤال 19 من 25
أظهر الإجابة
الإجابة: D. A warning that frostbite is beginning
CCOHS calls frostnip the mildest freezing injury and a warning that frostbite is beginning.
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السؤال 20 من 25
أظهر الإجابة
الإجابة: C. Do not thaw them until refreezing is no longer a risk
CCOHS says do not thaw a frostbitten area if it may freeze again, do not rewarm it on site, and never rub it or apply snow.
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السؤال 21 من 25
أظهر الإجابة
الإجابة: B. 15.5°C
CCOHS says trench foot can happen at temperatures as high as 15.5°C if the feet stay wet.
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السؤال 22 من 25
أظهر الإجابة
الإجابة: D. It gets damp quickly and stops keeping you warm
CCOHS does not recommend cotton because it gets damp quickly. Wool and synthetic fibres keep their insulation when wet.
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السؤال 23 من 25
أظهر الإجابة
الإجابة: B. Below -17°C
CCOHS recommends gloves for light work below 4°C and moderate work below -7°C, and mittens below -17°C.
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السؤال 24 من 25
أظهر الإجابة
الإجابة: D. -7°C
Section 7.36 of BC's OHS Regulation requires a nearby heated shelter when the equivalent chill temperature is below -7°C.
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السؤال 25 من 25
أظهر الإجابة
الإجابة: B. It gives a false feeling of warmth
CCOHS says alcohol creates a false sense of warmth and increases the risk of cold injury.
لوحة المفاتيح: 1–4 للإجابة، وEnter للسؤال التالي.
ما يجب معرفته قبل الاختبار
- Heat stroke is a medical emergency. Body temperature is often above 40°C. Call 911 and start cooling the person.
- CCOHS suggests drinking about 250 mL of water every 20 minutes in the heat, even if you are not thirsty.
- Hypothermia begins when core body temperature falls below 35°C.
- BC requires heat and cold stress assessments and control plans where there is a risk (OHS Regulation ss. 7.29 and 7.34).
- Ontario's heat stress guidance says employers must take every reasonable precaution to protect workers, which may include protection from heat stress.
الأسئلة الشائعة
What is the difference between heat exhaustion and heat stroke?
Heat exhaustion causes heavy sweating, weakness, nausea and pale, moist skin. Heat stroke is more serious: the person may be confused, collapse or have a seizure. Heat stroke is a medical emergency, so call 911.
How do I prevent frostbite on a winter patrol?
Dress in layers, cover your ears, wear mittens in deep cold, keep clothing dry and take warm-up breaks. Never ignore numbness, which is often the first sign.
Does this course count as first aid training?
No. It is background knowledge only. First aid for heat stroke and hypothermia is taught in a first aid course, and your province's OHS rules decide what first aid training your workplace needs.
Is there a temperature at which work must stop in Canada?
There is no single national cut-off. Each province and territory sets its own rules. For example, BC uses assessments and control plans, while Ontario points to the employer's duty to take every reasonable precaution.
هل الشهادة معتمدة أو معترف بها رسميًا؟
لا. إنها شهادة إتمام خاصة للمعرفة فقط. وهي غير معترف بها أو معتمدة أو موافق عليها من أي حكومة أو جهة ترخيص أو هيئة تنظيمية أو مؤسسة تعليمية، ولا تحل محل أي رخصة أو شهادة أو تدريب يفرضه القانون.
المصادر
- CCOHS: Hot environments - health effects and first aid
- CCOHS: Hot environments - control measures
- CCOHS: Humidex rating and work
- CCOHS: Cold environments - health effects and first aid
- CCOHS: Cold environments - control measures
- Government of Ontario: Managing heat stress at work
- WorkSafeBC: OHS Regulation Part 7 (Division 4, Thermal exposure)