Question

The following table is taken from a FMEA analysis for an industrial process, which statement is correct?

Potential Failure Mode	Severity	Occurrence	Detection	RPN
Pump overheating	6	4	9
Pump cavitation	3	7	5
Faulty pH sensor	9	3	9
Faulty flow sensor	2	1	2

Group of answer choices

The failure from a faulty flow sensor is very severe

Having a faulty flow sensor occurs very often

The RPN for having a pump cavitation is 15

It is difficult to detect a faulty pH sensor

Having a faulty pH sensor occurs very often, but it is easily detectable

It is easy to detect pump overheating

Answer 1

The higher the rating under a head the higher is the risk.

e.g. Higher a number under detection, higher is the risk of not detecting.

Accordingly, the statement "It is difficult to detect a faulty pH sensor" is correct.

Answer: It is difficult to detect a faulty pH sensor

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