Question

what is value engineering?
substituting low - cost components with high - quality components that still meet the products lifetime duration and basic purpose
engineering products that are meant to be replaced frequently but have a low cost
engineering products that are not meant to be replaced but have a high cost
substituting high - quality components with low - cost components that still meet the products lifetime duration and basic purpose

Explanation:

Value engineering focuses on optimizing value by reducing costs while maintaining functionality. Substituting high - quality components with low - cost ones that still meet product requirements (lifetime and basic purpose) aligns with this concept. Replacing frequently (but low - cost) or not replacing (high - cost) products don't directly address the core of value engineering. Substituting low - cost with high - quality (cost increase) is contrary.

Answer:

Substituting high - quality components with low - cost components that still meet the product's lifetime duration and basic purpose.