Test: Safety And First Aid - 2 - Class 5 MCQ

Causes for fire to spread:
There are several factors that contribute to the spread of fire. These include:
1. Supply of fuel: Fire requires a source of fuel to sustain and spread. The presence of flammable materials such as wood, paper, fabric, gasoline, or propane can provide the necessary fuel for a fire to grow.The more fuel available, the faster and more intense the fire can become.
2. Low ignition/kindling temperature of fuel:The ignition temperature is the minimum temperature at which a fuel can spontaneously ignite.Some fuels have low ignition temperatures, meaning they can easily catch fire.When a fire starts, it can ignite nearby fuels with low ignition temperatures, leading to the spread of the fire.
3. Air current:Air currents can play a significant role in spreading fire.Strong winds can carry burning embers or sparks over long distances, allowing the fire to jump from one location to another.Air movement can also provide oxygen to the fire, which is necessary for combustion to occur.
4. All of these:All the factors mentioned above can contribute to the spread of fire, and they often work together.The combination of a fuel source, low ignition temperature, and air currents can result in a fire rapidly growing and spreading.Overall, the spread of fire is influenced by the availability of fuel, the ease of ignition, and the presence of air movement. It is important to understand these factors to effectively prevent and control fires.

Why Cotton is Preferred:Cotton is a natural fiber that is breathable and comfortable, especially in a hot kitchen environment.It absorbs sweat and keeps the body cool, which is essential for someone working near heat sources like stoves and ovens.Cotton is also less likely to catch fire compared to synthetic materials like nylon or polyester.

Why Nylon and Polyester are Not Suitable:Nylon and polyester are synthetic materials that are not breathable. They can trap heat and make the cook feel uncomfortable.These materials are more flammable and can melt when exposed to high heat, posing a safety risk in the kitchen.

So, Wearing a cotton dress is the best choice for a cook as it ensures comfort, safety, and practicality in the kitchen.

Why may Shaurya get an electric shock if he puts on the fan with wet hands?
There are several reasons why Shaurya may get an electric shock if he puts on the fan with wet hands.
1. Conductivity of water:
When water comes into contact with electricity, it becomes a conductor of electricity. Since wet hands have water on them, they can provide a pathway for the electric current to flow through the body, potentially causing an electric shock.
2. Completing the circuit:
When Shaurya touches the fan switch with wet hands, he completes the circuit between the live wire and the neutral wire. This allows the electric current to flow through his body, leading to an electric shock.
3. Increased risk of electrical accidents:
Wet hands increase the chances of accidents involving electricity. Any accidental contact with live electrical wires can result in electric shocks, burns, or even electrocution.
4. Impact on the fan:
Putting on the fan with wet hands may not necessarily make the fan useless. However, if the electrical current passes through the wet switch or any other components of the fan, it can damage the fan's internal circuitry, rendering it dysfunctional or unsafe to use.
In conclusion, putting on the fan with wet hands can be dangerous for Shaurya as it increases the risk of electric shock, potential damage to the fan, and other electrical accidents. Therefore, it is important to always ensure dry hands while dealing with electrical appliances to prevent any mishaps.

Electrical fires should be extinguished with a carbon dioxide (CO₂) fire extinguisher. CO₂ is the best extinguisher for electrical fires because it doesn't conduct electricity, so it won't cause any further damage to the equipment or building.

The correct answer is C: Fracture and Sprain.
- Sling is a first aid device used to immobilize and support an injured arm or shoulder.
- It is commonly used for fractures and sprains involving the upper extremities.
- A sling helps to reduce movement and provide stability to the injured area, promoting healing and preventing further damage.
- It is not suitable for treating burns, animal bites, or other types of injuries.
- When a fracture or sprain occurs, it is essential to seek medical attention to assess the severity of the injury and to determine the appropriate treatment.
- Sling application should be done under the guidance of a healthcare professional, as incorrect usage may worsen the condition or delay proper treatment.

1. (a) Zebra crossing matches with (iv) Cross the road.

2. (b) Cut on skin matches with (iii) Apply bandage.

3. (c) Burnt a finger matches with (ii) Put the finger in water.

4. (d) Nose bleeding matches with (i) Pinch the nose.

What to do if a stray dog bites your friend:
1. Clean the wound with running water and soap:
- The first step is to clean the wound thoroughly to reduce the risk of infection.
- Use clean running water and mild soap to wash the wound gently.
- Avoid using harsh chemicals or antiseptics as they can further irritate the wound.
2. Go to the doctor for immunization:
- After cleaning the wound, it is important to seek medical attention.
- The doctor will assess the severity of the bite and determine if further treatment is required.
- They may recommend a tetanus shot if the person hasn't received one in the last 5-10 years.
- Depending on the location and severity of the bite, the doctor may also prescribe antibiotics to prevent infection.
- In some cases, the doctor may recommend a rabies vaccination if the stray dog's rabies status is unknown.
3. Both:
- It is essential to perform both steps mentioned above to ensure proper wound care and prevent complications.
- Cleaning the wound reduces the risk of infection, while seeking medical attention ensures appropriate treatment and prevention of diseases such as tetanus and rabies.
4. None of these:
- Choosing not to take any action after a stray dog bite can increase the risk of infection, tetanus, and rabies.
Remember, it is always better to be cautious and seek medical advice after a dog bite, especially if it comes from a stray dog whose vaccination status is unknown.

During Diwali celebration, we should:
- Wear cotton clothes: Cotton clothes are recommended during Diwali celebrations as they are less likely to catch fire in case of any accidents. Synthetic materials such as nylon or polyester can easily catch fire and cause severe injuries.
- Keep water and first aid box ready: It is essential to have a water source and a first aid box readily available during Diwali celebrations. Fireworks and candles can sometimes lead to accidents or burns, and having water nearby can help in extinguishing any unexpected fires. The first aid box can provide immediate medical assistance in case of minor injuries.
- Hold fireworks and candle away from our clothes: It is crucial to maintain a safe distance between fireworks, candles, and our clothes. Fireworks can emit sparks and hot debris, which can easily ignite flammable materials. By keeping a safe distance, we can prevent any accidental fires or injuries.
- All of these: All the mentioned points are important to ensure a safe and enjoyable Diwali celebration. Wearing cotton clothes, keeping water and first aid box ready, and holding fireworks and candles away from our clothes are necessary precautions to prevent accidents and injuries during the festive season.
By following these guidelines, we can celebrate Diwali safely and enjoy the festivities without any mishaps.

Accidents happen because of:
Carelessness of others: Accidents can occur due to the negligence or carelessness of other individuals. This includes situations where someone fails to follow traffic rules, drives under the influence of alcohol or drugs, or engages in reckless behavior on the road.
Our carelessness: Accidents can also happen due to our own carelessness. This includes situations where we fail to pay attention while driving, ignore road signs, or engage in distracted driving activities such as texting or talking on the phone.
Hurry: Hurrying or rushing can also contribute to accidents. When we are in a hurry, we may be more prone to making mistakes or taking risks while driving, which can increase the likelihood of an accident.
All of these: Accidents can occur due to a combination of factors, including the carelessness of others, our own carelessness, and being in a hurry. It is important to be aware of these factors and take necessary precautions to minimize the risk of accidents.

 

Option A: Keep left on road: This is a safety measure as it ensures that vehicles are driving on the correct side of the road, reducing the risk of head-on collisions.
Option B: Cross the road on zebra cross: This is a safety measure as it provides a designated area for pedestrians to cross the road, increasing their visibility to drivers and reducing the risk of accidents.
Option C: Follow the traffic signal: This is a safety measure as it regulates the flow of traffic, ensuring that vehicles and pedestrians can move safely and efficiently.
From the analysis above, we can conclude that option D: All of these is the correct answer as all the given options (A, B, and C) are safety measures.