ARM 401 UPDATED ACTUAL Questions and CORRECT Answers
1. Which one of the following types of risk analysis Quantitative analysis
uses historical data to assign specific values to con-
sequences and their probabilities to reach a numeric
indication of the level of risk?
2. From a system safety perspective, change analysis is That projects the effects
an analysis a given system change is
likely to have on an exist-
ing system
3. A worker for Build-Rite Construction Company re- Inadequate training
moved the pressure gauge and warning sticker from
an air compressor. The pressure gauge automatical-
ly shuts off the compressor when the pressure gets
too high. The sticker warned that an explosion could
result if the pressure was too high. Without the pres-
sure gauge in place, the air compressor exploded.
The explosion killed one worker and severely injured
another. If Build-Rite performs a root cause analysis
(RCA) of this fatal accident, which one of the following
might be determined to be a root cause?
4. Using fault tree analysis, an "and" gate is connecting .006 ----- (p(C) X p(D) X
the events in rectangles C, D, and E to the event in p(E); .10 X .20 X .30 = .006
rectangle A. If the probabilities of events in rectangles
C, D, and E of the fault tree are .10, .20, and .30,
respectively, what is the probability that the event in
rectangle A will occur?
5. A phase in the life of a system when the basic purpose Conceptual phase
and preliminary design of the system are formulated
is the
,6. Within a system safety context, the engineering phase The system's design is
of a system's life cycle is that phase in which constructed and proto-
types are tested.
7. One form of root cause analysis utilizes a fishbone di- "5 Whys" analysis.
agram. Under this technique, a team of investigators
brainstorms the causes of a risk event, sorts them into
categories, and traces them to their origin. This type
of analysis relies heavily on a
8. The second step in the root cause analysis (RCA) Causal factors
process is charting the agents that directly result in
one event triggering another event. In RCA, these
agents are called
9. Harris Company is analyzing its workers compensa- Quantitative analysis
tion loss exposure. Harris Company retains most of
the exposure and purchases excess insurance to cap
its liability on any individual claim. Because Harris
Company has a large work force, it can predict its
workers compensation cost with some level of accu-
racy. For next year, the risk manager estimates that
there is a 70% chance that workers compensation
costs will be $6 million or less, a 25% chance workers
compensation costs will be between $6 million and
$8 million, and a 5% chance workers compensation
costs will exceed $8 million. The type of analysis the
risk manager performed is called
10. Vicki has been hired to investigate industrial accidents Fault tree analysis
for a biotech company that produces a number of
drugs. In most cases, she will be asked to look at a
particular system failure and trace the events leading
, to the failure backwards. Which system safety analysis
technique would be most appropriate for this applica-
tion?
11. An approach to accident causation, which looks at an System safety analysis
organization as a whole to identify potential sources
of losses is
12. Air-Freight Company wants to use failure mode and Indenture levels
effects analysis (FMEA) to analyze its systems, subsys-
tems, components, sub-assemblies, and parts. Level
1 is the overall system for shipping freight. Level 2 is
the system segments, with the prime items (air freight
hubs, schedulers, and logistics) designated as Level 3.
Level 4 is the subsystems (local freight handlers, pack-
age sorters, etc.). Level 5 is the hardware and parts
(forklifts, conveyor belts, planes, and delivery vans,
etc.). In FMEA, these various systems and subsystems
are called
13. After a metal pressing machine crushed an employ- 5 Whys
ee's arm, the risk manager of Metal Fab Company
called a meeting. Those present at the meeting includ-
ed the company's safety manager, the plant foreman,
the part-time mechanic in charge of maintenance of
the machine, the co-worker who taught the injured
worker to use the machine, and the plant manag-
er who purchased the machine two years ago. Af-
ter completely describing the injury, the risk manag-
er led a discussion on what caused the injury. Each
time the group agreed on a cause, the risk manager
asked what the reason for the cause was. After several
1. Which one of the following types of risk analysis Quantitative analysis
uses historical data to assign specific values to con-
sequences and their probabilities to reach a numeric
indication of the level of risk?
2. From a system safety perspective, change analysis is That projects the effects
an analysis a given system change is
likely to have on an exist-
ing system
3. A worker for Build-Rite Construction Company re- Inadequate training
moved the pressure gauge and warning sticker from
an air compressor. The pressure gauge automatical-
ly shuts off the compressor when the pressure gets
too high. The sticker warned that an explosion could
result if the pressure was too high. Without the pres-
sure gauge in place, the air compressor exploded.
The explosion killed one worker and severely injured
another. If Build-Rite performs a root cause analysis
(RCA) of this fatal accident, which one of the following
might be determined to be a root cause?
4. Using fault tree analysis, an "and" gate is connecting .006 ----- (p(C) X p(D) X
the events in rectangles C, D, and E to the event in p(E); .10 X .20 X .30 = .006
rectangle A. If the probabilities of events in rectangles
C, D, and E of the fault tree are .10, .20, and .30,
respectively, what is the probability that the event in
rectangle A will occur?
5. A phase in the life of a system when the basic purpose Conceptual phase
and preliminary design of the system are formulated
is the
,6. Within a system safety context, the engineering phase The system's design is
of a system's life cycle is that phase in which constructed and proto-
types are tested.
7. One form of root cause analysis utilizes a fishbone di- "5 Whys" analysis.
agram. Under this technique, a team of investigators
brainstorms the causes of a risk event, sorts them into
categories, and traces them to their origin. This type
of analysis relies heavily on a
8. The second step in the root cause analysis (RCA) Causal factors
process is charting the agents that directly result in
one event triggering another event. In RCA, these
agents are called
9. Harris Company is analyzing its workers compensa- Quantitative analysis
tion loss exposure. Harris Company retains most of
the exposure and purchases excess insurance to cap
its liability on any individual claim. Because Harris
Company has a large work force, it can predict its
workers compensation cost with some level of accu-
racy. For next year, the risk manager estimates that
there is a 70% chance that workers compensation
costs will be $6 million or less, a 25% chance workers
compensation costs will be between $6 million and
$8 million, and a 5% chance workers compensation
costs will exceed $8 million. The type of analysis the
risk manager performed is called
10. Vicki has been hired to investigate industrial accidents Fault tree analysis
for a biotech company that produces a number of
drugs. In most cases, she will be asked to look at a
particular system failure and trace the events leading
, to the failure backwards. Which system safety analysis
technique would be most appropriate for this applica-
tion?
11. An approach to accident causation, which looks at an System safety analysis
organization as a whole to identify potential sources
of losses is
12. Air-Freight Company wants to use failure mode and Indenture levels
effects analysis (FMEA) to analyze its systems, subsys-
tems, components, sub-assemblies, and parts. Level
1 is the overall system for shipping freight. Level 2 is
the system segments, with the prime items (air freight
hubs, schedulers, and logistics) designated as Level 3.
Level 4 is the subsystems (local freight handlers, pack-
age sorters, etc.). Level 5 is the hardware and parts
(forklifts, conveyor belts, planes, and delivery vans,
etc.). In FMEA, these various systems and subsystems
are called
13. After a metal pressing machine crushed an employ- 5 Whys
ee's arm, the risk manager of Metal Fab Company
called a meeting. Those present at the meeting includ-
ed the company's safety manager, the plant foreman,
the part-time mechanic in charge of maintenance of
the machine, the co-worker who taught the injured
worker to use the machine, and the plant manag-
er who purchased the machine two years ago. Af-
ter completely describing the injury, the risk manag-
er led a discussion on what caused the injury. Each
time the group agreed on a cause, the risk manager
asked what the reason for the cause was. After several
