ENGR 1322 Final Exam Practice
Questions & Answers 2024/2025
What happened to the Space Shuttle Challenger? - ANSWERSThe shuttle had an o-ring failure, which
caused the fuel tanks to explode
Failure is a normal part of the design process (T/F) - ANSWERSTrue
Many factors influence design choices. The challenger disaster was a result of which influence(s)? -
ANSWERSA) Political
B) Money
C) Ethics
5 Why's - ANSWERSFor every event, ask "Why did this happen?" or "What caused this to occur?
Fault Tree Analysis - ANSWERS- Top down logical analysis to determine potential root causes for
undesired event
- "AND" and "OR" gates
- Drive down through system design to identify basic events
FMECA - ANSWERSBottom up analysis of the results of component or system failure and to identify
potential causes for the initial component failure
Ishiwaka (Fishbone) Diagrams - ANSWERSGraphical extension of "5 Whys" with categories to stimulate
thinking
Design Cycle - ANSWERSProblem Analysis, Design Generation, Design Realization, Design Evaluation
, Ergonomics - ANSWERSThe science of how the body interacts with machines (focuses on the size,
weight, and placement of control devices that interact with the human body
Antrhopometric data - ANSWERSStatistics on height, arm length, joint location, gait, finger spacing, eye
level
Cognition - ANSWERS- How we know and perceive the world
- Related to design -- how a user learns about the device and masters its features
The human machine interface - ANSWERSDesigners seek to make machines easier to understand,
operate, and maintain
What is the goal of test and evaluation effort? - ANSWERSTo identify failures inside a controlled
environment
Goal of safety engineering? - ANSWERSTo identify and prevent hazardous failures BEFORE testing
Goal of reliability engineering - ANSWERSTo reduce failure rates for cost and safety reasons
Deepwater Hoirzon Oil Platform - ANSWERS
Failure event - ANSWERSThe result (symptom) of underlying causes and conditions
Symptom of the problem "The weed" - ANSWERSAbove the surface (obvious)
The Underlying Causes "The Root" - ANSWERSBelow the surface (not obvious)
Existing products or systems - ANSWERS- Re-design, recall and retro-fit
- Limit usage to less severe conditions
- Limit usage to less severe conditions
Questions & Answers 2024/2025
What happened to the Space Shuttle Challenger? - ANSWERSThe shuttle had an o-ring failure, which
caused the fuel tanks to explode
Failure is a normal part of the design process (T/F) - ANSWERSTrue
Many factors influence design choices. The challenger disaster was a result of which influence(s)? -
ANSWERSA) Political
B) Money
C) Ethics
5 Why's - ANSWERSFor every event, ask "Why did this happen?" or "What caused this to occur?
Fault Tree Analysis - ANSWERS- Top down logical analysis to determine potential root causes for
undesired event
- "AND" and "OR" gates
- Drive down through system design to identify basic events
FMECA - ANSWERSBottom up analysis of the results of component or system failure and to identify
potential causes for the initial component failure
Ishiwaka (Fishbone) Diagrams - ANSWERSGraphical extension of "5 Whys" with categories to stimulate
thinking
Design Cycle - ANSWERSProblem Analysis, Design Generation, Design Realization, Design Evaluation
, Ergonomics - ANSWERSThe science of how the body interacts with machines (focuses on the size,
weight, and placement of control devices that interact with the human body
Antrhopometric data - ANSWERSStatistics on height, arm length, joint location, gait, finger spacing, eye
level
Cognition - ANSWERS- How we know and perceive the world
- Related to design -- how a user learns about the device and masters its features
The human machine interface - ANSWERSDesigners seek to make machines easier to understand,
operate, and maintain
What is the goal of test and evaluation effort? - ANSWERSTo identify failures inside a controlled
environment
Goal of safety engineering? - ANSWERSTo identify and prevent hazardous failures BEFORE testing
Goal of reliability engineering - ANSWERSTo reduce failure rates for cost and safety reasons
Deepwater Hoirzon Oil Platform - ANSWERS
Failure event - ANSWERSThe result (symptom) of underlying causes and conditions
Symptom of the problem "The weed" - ANSWERSAbove the surface (obvious)
The Underlying Causes "The Root" - ANSWERSBelow the surface (not obvious)
Existing products or systems - ANSWERS- Re-design, recall and retro-fit
- Limit usage to less severe conditions
- Limit usage to less severe conditions
