UPDATED Exam Questions and CORRECT
Answers
failure - CORRECT ANSWER - - departure of an item from its required or intended
operation, function, or behavior
- inability of a system, subsystem, or component to perform its required function
- inability of an item to perform within previously prescribed limits
failure mode - CORRECT ANSWER - - manner by which an item fails
- mode or state the items is in after it fails
- way in which the failure of an item occurs
FMEA questions - CORRECT ANSWER - FM: what could go wrong and how?
E: what are the consequences
A: Probability of occurrences and severity of the consequences
FMEA - CORRECT ANSWER - tool for evaluating the effects of potential failure modes
of subsystems, assemblies, components or functions
- equipment oriented and not hazards oriented
FMEA answers the following questions: - CORRECT ANSWER - - what can fail?
- how does it fail?
- how frequently will it fail?
- what are the effects of the failure?
- what is the reliability/safety consequence of the failure?
FMEA Worksheet - CORRECT ANSWER - item
, identification
description
failure modes
effects
safeguards
actions
Process Steps FMEA - CORRECT ANSWER - 1. Define system
2. Plan FMEA
3. Establish safety criteria
4. Acquire Data
5. Conduct FMEA: Worksheet, Failure Modes, TLMs, SCFs
6. Evaluate risk
7. recommend actions
8. monitor corrective action
9. track hazards
10. document FMEA
general failure modes - CORRECT ANSWER - - failure to operate
- premature operation
- intermittent operation
- failure to cease operation at prescribed time
- loss of output
- degraded output
example - switch - CORRECT ANSWER - open, partially open, closed, partially closed,
chatter