Environmental and Systems Engineering Flashcards
6 cards from real ME or MEng Master of Engineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Environmental and Systems Engineering flashcards as text
In engineering risk analysis, risk is typically defined as:
Answer: The product of probability of occurrence and consequence severity
Risk = Probability × Consequence; this formulation allows quantitative comparison of hazards with different likelihoods and impacts.
Noise pollution is typically measured in decibels (dB), which is a:
Answer: Logarithmic scale of sound pressure level relative to a reference
SPL (dB) = 20 log₁₀(p/p_ref), where p_ref = 20 μPa; the logarithmic scale reflects the ear's response to sound across many orders of magnitude.
ISO 14001 is an international standard for:
Answer: Environmental management systems
ISO 14001 specifies requirements for an Environmental Management System (EMS) to help organizations minimize environmental impact and comply with regulations.
The concept of 'carrying capacity' in environmental systems engineering refers to:
Answer: Maximum population or load an ecosystem can sustainably support
Carrying capacity is the maximum population size (or resource use level) that an environment can sustain indefinitely without degradation.
Design for Disassembly (DfD) in sustainable engineering focuses on:
Answer: Enabling easy separation of components for recycling or reuse at end of life
DfD principles facilitate efficient disassembly at end-of-life, allowing materials recovery and reuse, supporting circular economy goals.
In a control system block diagram, the transfer function G(s) of a system is defined as:
Answer: The ratio of output to input in the frequency domain (Laplace transform)
The transfer function G(s) = Y(s)/X(s) is the ratio of the Laplace-transformed output to input, assuming zero initial conditions.