7.2 Lesson 1 Flameless Heater

1.     What criteria should be considered when designing a flameless heater?

• It should only work indoors

• It must use electricity.

• It should require special tools.

• It should heat food safely without fire.

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2.     What limitation might you face when creating a flameless heater?

• It could use too much water.

• It might not reach the required temperature for safety.

• It can be too heavy to carry.

• It may need a lot of space.

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Which of the following would be the most effective way to prepare people for heating food when typical methods are unavailable?

• a) Show them how to create a homemade flameless heater.

• Teach them how to use a microwave safely.

• Instruct them on how to install a gas stove.

• Encourage them to eat only cold foods.

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4. 4. Analyze the benefits and drawbacks of using a flameless heater in a rescue scenario.

• It’s always faster than other heating methods.

• It requires an open flame, which can be dangerous.

• It can provide warm meals even when conventional methods aren’t available.

• All meals are heated perfectly every time

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5.     Determine the most significant challenge of using a flameless heater in a confined space, such as a small room or tent.

• It can’t be turned off once activated.

• The heater is too bulky to use in small spaces.

• The heater doesn’t get warm enough.

• It can displace oxygen and release vapors that need ventilation.

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6.     Evaluate the statement: “MREs with flameless heaters can only be used by trained professionals.”

• True; they require special handling skills.

• False; they are designed for easy use by the general public.

• True; only professionals can understand the complexity.

• False; but training is highly recommended for all users.

7.     Determine the most significant factor affecting the heating efficiency of flameless heaters.

• a) The amount of water added

• The type of food being heated

• The brand of the MRE

• The size of the heater bag

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8.     Analyze the importance of clear instructions provided with MREs for their effective use.

• Instructions are only helpful for beginners.

• Instructions are not very important.

• Only experts need to understand the instructions.

• Clear instructions are crucial for safe and effective use.

9.     What can be a good investigation question related to flameless heaters?

• Why are flameless heaters not sold in toy stores?

• What is the best aroma for food heated by flameless heaters?

• a) How does the chemical reaction in a flameless heater generate heat?

• What is the best color for the heater?

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10.     What is one investigation idea to test your flameless heater?  SELECT ALL THAT APPLY

• Comparing the temperature of food heated with different chemical reactions

• Testing how different lighting conditions affect its performance

• Measuring how much energy it consumes

• Running it for a long time to see how long it lasts

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