Scientific Method & Engineering Process Flashcards
7 cards from real EMS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Scientific Method & Engineering Process flashcards as text
When an EMS auditor evaluates whether an organization's environmental targets are SMART, the 'M' criterion specifically requires that targets be:
Answer: Measurable with defined metrics and methods
The 'M' in SMART targets stands for Measurable, requiring that progress can be quantified using defined indicators and measurement methods.
A scatter plot analysis of vehicle fuel consumption versus carbon emissions at a logistics company shows a correlation coefficient (r) of 0.97. An EMS auditor should interpret this as:
Answer: A strong positive linear association warranting further investigation
An r of 0.97 indicates a very strong positive correlation, but correlation alone does not establish causation — further analysis is warranted.
Which engineering design principle is most directly embodied by ISO 14001's requirement to consider life cycle perspective when designing products?
Answer: Systems thinking applied across all product stages
Life cycle thinking applies systems engineering principles by considering environmental impacts at every stage — from raw material extraction through end-of-life.
An organization's EMS team discovers that two different analysts measuring the same water sample report BOD values of 42 mg/L and 67 mg/L. This discrepancy most likely indicates a problem with:
Answer: Reproducibility
Reproducibility refers to agreement between results obtained by different analysts; a large discrepancy between analysts signals poor reproducibility.
In the engineering design process for an emission control system, a 'feasibility study' is most analogous to which scientific method step?
Answer: Hypothesis testing through preliminary experimentation
A feasibility study tests whether a proposed solution is viable under real constraints, equivalent to preliminary experimentation before full commitment.
An EMS auditor reviewing an organization's noise pollution reduction project finds that baseline measurements were taken only during peak production. What scientific method flaw does this represent?
Answer: Biased or non-representative sampling
Measuring only during peak production introduces sampling bias, as baseline data does not represent the full range of operational conditions.
Which of the following is the correct order of steps in the engineering design process when developing an EMS control measure?
Answer: Define problem → Develop solutions → Test prototype → Evaluate and refine
The standard engineering design process proceeds from defining the problem through developing and testing solutions to iterative evaluation and refinement.