Set Heat Device Requirements Practice Test

Ice cream transport design challenge: You need a container to transport 1 liter of ice cream from the store to home in 30 minutes without melting. The ice cream must stay at or below -5°C. The container must cost under $15, be portable (easy to carry), not leak, and be made from food-grade safe materials.

Which statement correctly distinguishes criteria from constraints for this design?

Laboratory sample storage design challenge: You must transport biological samples to a lab and keep them at 4°C ± 2°C (must stay between 2°C and 6°C) for 8 hours. The container must hold 200 mL of samples, be insulated, include temperature monitoring, be shock-resistant, and stay within a $100 budget.

Which measurement plan best tests whether the temperature criterion is met?