Quantitative Risk Analysis in Safety Engineering
Homework 12, Solutions
Due Tuesday, 4/15/14
1. IRME, 7.1: Covariate model with variables of operating temperature and ratio of
operating voltage/rated voltage of a ceramic capacitor. Find which of two
modif

Quantitative Risk Analysis in Safety Engineering
Homework 1
Due 01/21/14
1. You are asked to explain briefly the difference between hazard and risk. Provide an
answer to identify and clarify the distinction between hazard and risk.
2. Provide a brief desc

Quantitative Risk Analysis in Safety Engineering
Homework 6, Solutions
Due Tuesday, February 25, 2014
1. Five identical road graders are used for a highway project. Company data
show that the operational life T of each grader follows lognormal behavior wi

Risk Analysis in Safety Engineering
Homework 12, Solutions
Due Tuesday, 11/19/13
As discussed in the QRA course, students and engineers are expected to do the
following:
A. Begin a calculation by writing the general expressions and then decide
whether one

Quantitative Risk Analysis in Safety Engineering
Homework 1, Solutions
Due 01/21/14
1. You are asked to explain briefly the difference between hazard and risk. Provide an
answer to identify and clarify the distinction between hazard and risk.
A hazard is

Risk Analysis in Safety Engineering
Homework 2, Solutions
Due 9/10/13
1. Modarres RAE, 2, p. 30: As stated in the problem, draw or sketch the excess
frequency/consequence plot with labeled axes and find the frequency of
exceeding 100 fatalities. Note that

Quantitative Risk Analysis in Safety Engineering
Homework 4, Solutions
Due 2/11/14
1. Consumption of jet fuel for maneuvering a satellite during one year is normally
distributed with a mean of 10,000 hr and a std. deviation of 1000 hr. Calculate the
proba

Quantitative Risk Analysis in Safety Engineering
Homework 11, Solutions
Due Tuesday, 4/8/14
1. Your team has developed a new chemical process with an uncertain efficiency. If
the process is highly efficient (EH), a small unit (reactor) A is sufficient. If

Introduc)on to Reliability and
Maintainability
Unit 6 a
Quantitative Risk Analysis
in Safety Engineering
Spring 2014
1
References
Ebeling, C.E., Introduction to Reliability and Maintainability
Engineering, 2nd ed, Waveland Press, 2010, Chapte

Risk Communication
Unit 32
Quantitative Risk Analysis
in Safety Engineering
Spring 2014
1
References
Modarres, M., Risk Analysis in Engineering, Taylor&Francis,
2006 (Modarres, RAE)
Fischhoff, Baruch and Kadvany, J., Risk a Very Short Introduction, Oxfor

Parameter Learning with
Con0nuous Distribu0on BNs
Unit 27
Risk Analysis
in Safety Engineering
Spring 2014
1
References
Fenton, N. and M. Neil, Risk Assessment and Decision Analysis with
Bayesian Networks, CRC Press, 2

Multiattribute Decision Analysis
1
References
Making Acute Risk Decisions with Chemical Process Safety
Applications, CCPS, AIChE, 1995 (AIChE, 1995)
Ang, A. H-S. and W.H. Tang, Probability Concepts in Engineering
Planning and Design, Vol 2, Wiley, D

Risk Analysis in Safety Engineering
Homework 8, Solutions
Due Tuesday, 10/27/15
1. The following is an engaging lesson about the influence of bias on probability
estimation and risk perception:
John Hinckley was on trial in 1982 for attempting to kill Pre

Expert Opinion Bayes Judgment
and Engineering Judgment in Risk
and Performance Assessment
Unit 28
Quantitative Risk Analysis
in Safety Engineering
Spring 2014
1
References
Modarres, M.,M. Kaminskiy, and V. Krivtsov, Reliability Engineering
and Risk Analy

Risk Measures
Unit 30
Quantitative Risk Analysis
in Safety Engineering
Spring 2014
References
Modarres, M., Risk Analysis in Engineering, Taylor & Francis, 2006,
Chap 8 on website (Modarres, RAE)
Modarres, M., M. Kaminskiy, and Vasiliy Krivtsov, Reliabi

Human Reliability Analysis
Unit 29
Quantitative Risk Analysis
in Safety Engineering
Spring 2014
1
References
Modarres, M.,M. Kaminskiy, and V. Krivtsov, Reliability Engineering and Risk Analysis, 2nd ed,
Taylor&Francis, 2010 (Modarres, RERA)
Modarres, M.,

Representation of
Risk Values and Risk
Acceptance Criteria
Unit 31
Quantitative Risk Analysis in Safety Engineering
Spring 2014
1
References
Modarres, M., Risk Analysis in Engineering,
Taylor&Francis, 2006, Chap 7 on website
(Modarres, RAE)
Modarres, M.,

Risk Management
Unit 33
Quan1ta1ve Risk Analysis
in Safety Engineering
Spring, 2014
References
Modarres, M., Risk Analysis in Engineering, Taylor & Francis, 2006 (Modarres, RAE)
Fenton, N. and M. Neil, Risk Assessment and Decision An

Review 3
Unit 34
Quantitative Risk Analysis
in Safety Engineering
Spring 2014
1
Review 1
Unit 10
Quantitative Risk Analysis
in Safety Engineering
Spring 2014
2
Hazard, Risk, and Decision Analysis
Integration: System Way of Thinking
System Monito

QRA in Safety Engineering
Homework 7
Due Tuesday, 3/8/16
1. Measurement Idiom Application: Indicators for Process Attributes (RDBN, pp. 257-259)
Begin with the Indicators.cmp AgenaRisk model in which the attribute, Process Quality
is measured indirectly t

Risk Analysis in Safety Engineering
Homework 13, Solutions
Due Tuesday, 11/26/13
As discussed in the QRA course, students and engineers are expected to do the
following:
A. Begin a calculation by writing the general expressions and then decide
whether one

Risk Analysis in Safety Engineering
Homework 11, Solutions
Due Tuesday, 11/12/13
1. Your team has developed a new chemical process with an uncertain efficiency. If
the process is highly efficient (EH), a small unit (reactor) A is sufficient. If the
proces

Risk Analysis in Safety Engineering
Homework 14, Solutions
Due 12/3/13
1. Your team has been called to consult on the reliability of the NASA space shuttle.
There have been many estimates of the probability of failure on demand, pfd,
from 1 in 106 to more

Risk Analysis in Safety Engineering
Homework 8, Solutions
Due Tuesday, 10/22/13
1. The following is an interesting problem about the influence of bias on probability
estimation and risk perception:
John Hinckley was on trial in 1982 for attempting to kill

Risk Analysis in Safety Engineering
Homework 6, Solutions
Due Tuesday, 10/8/13
1. This problem continues HW 3, Problem 8 beginning at h) below.
A new structure will be proof tested. It is assumed that the maximum proof load
is specified at sufficiently hi

Risk Analysis in Safety Engineering
Homework 7, Solutions
Due Tuesday, 10/15/13
1. Consider a system in which an enclosed tank can be ruptured through overfilling.
For the reduced fault tree (FT) below with Tank Rupture the top event, do the
following:
a)

Risk Analysis in Safety Engineering
Homework 10, Solutions
Due Tuesday, 11/5/13
1. Reliability Forecasting using Bayesian Network
Begin with the AgenaRisk model, Reliability forecast using Reliability
forecast.ast, which forecasts the reliability of a was