ASP Risk Assessment and Control 4

Question 1

A facility uses the 'Bow-Tie' analysis method. What does the 'knot' or center of the bow-tie represent?

Accepted Answer

The top event or hazardous event

Answer

A control measure

Answer

A consequence pathway

Answer

A threat source

Question 2

When applying the hierarchy of controls, substitution is preferred over engineering controls because:

Accepted Answer

It eliminates or reduces the hazard at the source rather than containing it

Answer

It is always cheaper to implement

Answer

It requires less regulatory documentation

Answer

It is easier to train workers on

Question 3

A safety manager calculates a Risk Priority Number (RPN) of 120 for a hazard. Which FMEA inputs produce this value if severity = 8 and detectability = 5?

Accepted Answer

Occurrence = 3

Answer

Occurrence = 2

Answer

Occurrence = 4

Answer

Occurrence = 15

Question 4

In quantitative risk assessment, 'risk tolerance' criteria are typically expressed as:

Accepted Answer

A maximum acceptable individual or societal risk level (e.g., 1×10⁻⁵/year)

Answer

A qualitative color on a risk matrix

Answer

The number of near-misses per quarter

Answer

OSHA recordable incident rate

Question 5

Which of the following BEST describes a 'leading indicator' in safety risk management?

Accepted Answer

Percentage of safety observations completed on schedule

Answer

Number of lost-time injuries last quarter

Answer

Workers' compensation costs year-to-date

Answer

OSHA 300 log total recordable cases

Question 6

A root cause analysis reveals that a pressure relief valve was bypassed because workers lacked time under production pressure. This root cause is BEST categorized as:

Accepted Answer

Organizational/management system failure

Answer

Technical failure

Answer

Human error (skill-based)

Answer

Environmental factor

Question 7

OSHA's Process Safety Management (PSM) standard requires a Process Hazard Analysis (PHA) to be revalidated at least every:

Accepted Answer

5 years

Answer

3 years

Answer

7 years

Answer

10 years