Chapter 5 Exercise Solutions
Chance or common causes of variability represent the inherent, natural variability of
a process - its background noise. Variation resulting from assignable or special
causes represents generally large, unsatisfactory dist
IE 4453 Quality Control and Six Sigma
Pretest #2 Spring 2009
Samples of size n=10 are collected from a process every hour. After 50 samples have
been collected, we calculate x =20 and s =1.5. Assume that both charts exhibit control
and that the quali
1. Discuss the different categories of hazards
Primary Hazards are actual failures of equipment or operations that cause accidents.
Initiating Hazards are initial conditions, which started the chain of events to produce the
1) Is the most important reason for accident prevention economic, legal, or
There really is no right answer for this question. It depends on the type of
person you are morally. Most small companies think monetary issues are the
1. Cite some hazards involved in the use of electrical equipment.
a. Shock to personnel
b. Ignition of combustible materials
c. Overheating of equipment
e. Involuntary activation of equipment
2. What is let-go curre
1. Discuss the types of errors that can place a worker in jeopardy through no fault of the
Errors in the design of the workplace or by another worker or manager controlling the
environment can place a worker in jeopardy through n
1. How many facilities are covered by the 1993 OSHA regulation, PermitRequired Confined Spaces? How many employees are in these affected
There were 300,000 facilities with over 12 million employees.
2. 1994 NIOSH revi
LOUISIANA STATE UNIVERSITY
MECHANICAL AND INDUSTRIAL ENGINEERING DEPARTMENT
IE 4462 SAFETY ENGINEERING
SYLLABUS - Fall 2015
An introduction to occupational safety and accident prevention management. Topics include design and
Each student is assigned two sets of data taken from two different processes. Each set of
data has phase I data and phase 2 data. Each data point is a raw observation. That is n=1.
For each student, the first step is to extract the assigned data
Chapter 10 Exercise Solutions
A = 2.530, nA = 15, A = 101.40
B = 2.297, nB = 9, B = 60.444
C = 1.815, nC = 18, C = 75.333
D = 1.875, nD = 18, D = 50.111
Standard deviations are approximately the same, so the DNOM chart can be used.
R = 3.8, = 2.
Chapter 6 Exercise Solutions
1. The MINITAB convention for determining whether a point is out of control is: (1) if
a plot point is within the control limits, it is in control, or (2) if a plot point is on or
beyond the limits, it is out of control
Chapter 14 Exercise Solutions
Note: To analyze an experiment in MINITAB, the initial experimental layout must be
created in MINITAB or defined by the user. The Excel data sets contain only the data
given in the textbook; therefore some information require
Chapter 11 Exercise Solutions
Note: MINITABs Tsquared functionality does not use summary statistics, so many of
these exercises have been solved in Excel.
Phase 2 T 2 control charts with m = 50 preliminary samples, n = 25 sample size, p = 2
1. Why is management support necessary for a safety engineer to accomplish his or her job?
If the safety engineer doesnt have management support then he would not be able to get help
and it would make the job very frustration and hard to
1) For what purpose is a preliminary hazard analysis used? When should it be
prepared? Describe the information that might be concluded.
Preliminary hazards analysis is the thorough evaluation of the possible hazards
1) A NIOSH study concluded that there was a substantial body of evidence of an
association between MSDs and certain work- related factors. List some of those
Age, gender, smoking
2) What are the effects of overuse dis
1) List some types of documents which might list safety criteria or requirements. Give examples.
The types of documents : Standards, codes, OSHA check sheet
2) Indicate the uses to which codes and standards can be put.
They help lessen c
1. What are the three major factors on which the ability to withstand a fall
Velocity of an initial impact, magnitude of the deceleration, orientation of the
body on impact
2. What level of energy can cause a skull to fracture if it is hit by a h
IE 4462 SAFETY ENGINEERING
CHAPTERS 1 - 9
This is a combination of everything I have from notes from class (which is not much), last day review, stuff from
noteswap, and stuff from Ryan Usry from when he took it.
CHAPTER 1 ACCIDENT LOSSES
1. Each state has had an industrial safety code for many years, so why was it
necessary to enact the OSHAct ? What is the difference between the OSHAct
Each state had code that was inaccurate at preventing ac
1. Why has it been said that engineers can cause more fatalities and injuries
than can physicians?
Engineers are responsible for designing processes, building and large
equipment where if something went wrong a large amount of people cou
3.1) Discuss each of the six stated objectives expressed by the U.S. Chamber of
Commerce and how well each has been met in actual practice.
1 The first objective is to provide sure, prompt and reasonable income and
Emergency Showers and Eyewash Stations
Emergency showers and eyewash stations are some of the most important
safety equipment present at the workplace. Showers and eyewash stations flush
away hazardous substances a
1. What are the uses and needs for accident investigations? Who might call for an
investigation? Should that person participate in the investigation?
Accident investigations are used to review an accident scene and determine wher
1) Discuss why personnel in modern plants are less subject to the mechanical injuries that
were so common in early industrial plants.
Over time, laws and codes have been put in place that start requiring guards to be
1. What conditions are required for a fire to start?
i. A heat source
ii. A fuel source
iii. An oxygen source
2. What is a fuel? Give ten types of fuels.
Fuel is a material burned to produce heat or power
1)A material can be considered toxic or poisonous when a small quantity
will cause an injurious effect in the body of the average normal, adult
human.Allergies are an unusual susceptibilities to substances that
produce violent or fatal r