1. Using the hazard assessment matrix shown below, describe the risk for the fol
ID: 360035 • Letter: 1
Question
1. Using the hazard assessment matrix shown below, describe the risk for the following activities. Explain your reasoning.
a. Getting hit by a car while crossing the street.
b. Having a grease fire in your kitchen.
c. Being involved in a plane crash.
d. Working at your computer keyboard.
Frequency of Occurrence
Hazard Categories
1
Catastrophic
2
Critical
3
Marginal
4
Negligible
(A) Frequent
1A
2A
3A
4A
(B) Probable
1B
2B
3B
4B
(C) Occasional
1C
2C
3C
4C
(D) Remote
1D
2D
3D
4D
(E) Improbable
1E
2E
3E
4E
Unacceptable risk
Requires mgt. review
Acceptable w/review
Acceptable w/out review
Frequency of Occurrence
Hazard Categories
1
Catastrophic
2
Critical
3
Marginal
4
Negligible
(A) Frequent
1A
2A
3A
4A
(B) Probable
1B
2B
3B
4B
(C) Occasional
1C
2C
3C
4C
(D) Remote
1D
2D
3D
4D
(E) Improbable
1E
2E
3E
4E
Unacceptable risk
Requires mgt. review
Acceptable w/review
Acceptable w/out review
Explanation / Answer
a. Getting hit by a car while crossing the street.
The risk category is 2B as the result of getting hit would be definitely critical and the chances of occurrence is also probably high because of number of times such an event has happened.
b. Having a grease fire in your kitchen.
Now the result would be catastrophic because a fire would destroy everything. The chances are however improbable because of safety interlocks in place and regular cleaning. So risk category is 1E
c. Being involved in a plane crash.
Definitely catastrophic with a remote likelihood and hence 1D risk category.
d. Working at your computer keyboard.
This is very common so high frequency and negligible damage can occur. So risk category is 4A
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