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In FMEA studies, how to calculate the RPN ?

RPN : Risk Priority Number 

For each failure mode we calculate the RPN 

Pick up the correct choice 

 

A. RPN= Likelihood of Occurrence 

B. RNP= Likelihood of Occurrence × Likelihood of Detection 

C. RNP=Likelihood of Occurrence × Likelihood of Detection × Severity

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Question added by LABIB KOOLI , Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet , Tunisian Vocational Training Agency (ATFP)
Date Posted: 2015/01/31
Saiful Islam Hiron
by Saiful Islam Hiron , Site HR Manager , Handicap International

Agree with Tartir...........................

The right answer is Choice (C) RNP=Likelihood of Occurrence × Likelihood of Detection × Severity

Agreed with  experts

It's  C 

Vinod Jetley
by Vinod Jetley , Assistant General Manager , State Bank of India

Calculation of the Risk Priority Number

The system calculates the risk priority number for each potential defect of a function as follows:

It chooses the effect with the greatest significance B (highest number of points in valuation).

It chooses the cause with the greatest probability of occurrence A (highest number of points in valuation).

If one or more detection actions are assigned to the defect cause, the system chooses the highest probability of detection E (lowest number if points in valuation) from all the assigned detection actions that have at least the status Confirmed .

The risk priority number results as follows: RPN = B * A * E.

 

Mohamed Hamdy Kamal Riad
by Mohamed Hamdy Kamal Riad , Senior Solution Architect , IBM

3rd Answer                                                                                                     

C

جعفر هندي زين السقاف
by جعفر هندي زين السقاف , مهندس أستشاري , مشاريع اﻻشغال العامة

Answer is option "c " RPN = O × D × S

Elke Woofter
by Elke Woofter , Project Assistant , American Technical Associates

 In FMEA normally we'll calcualte the RPN as Sev x Occ x Det

C. RNP=Likelihood of Occurrence × Likelihood of Detection × Severity

Yeah, it's 'C'. Product of all three.

As Saleh
by As Saleh , Recruitment Manager , Saudi House Recruitment

I think my choice and that of the development of the possibilities that are less risk

B. RNP = Likelihood of Occurrence × Likelihood of Detection

 

VENKITARAMAN KRISHNA MOORTHY VRINDAVAN
by VENKITARAMAN KRISHNA MOORTHY VRINDAVAN , Project Execution Manager & Accounts Manager , ALI INTERNATIONAL TRADING EST.

answer option >>>>>>>>>>>>>>C. RNP=Likelihood of Occurrence × Likelihood of Detection × Severity

B sounds like the correct answer.

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