CSP Hazard Identification and Risk Assessment 2

Question 1

What does HAZOP stand for, and in what setting is it most commonly applied?

Accepted Answer

Hazard and Operability Study — applied in process industries to identify deviations from design intent

Answer

HAZOP (Hazard and Operability Study) is a structured technique used in process industries to identify hazards and operability problems caused by deviations from design intent using guidewords.

Question 2

In a Fault Tree Analysis (FTA), what does an AND gate represent?

Accepted Answer

The top event will occur only if ALL input events occur simultaneously

Answer

An AND gate in FTA means all input events must occur simultaneously for the output event to occur, indicating a more reliable system than an OR gate configuration.

Question 3

What is 'residual risk' in the context of risk management?

Accepted Answer

The risk that remains after all feasible controls have been implemented

Answer

Residual risk is the level of risk remaining after all practicable controls have been applied — it is the risk that must ultimately be accepted or further reduced through additional measures.

Question 4

What does the ALARP principle stand for, and how is it applied in risk management?

Accepted Answer

As Low As Reasonably Practicable — risks should be reduced until further reduction is grossly disproportionate to the benefit

Answer

ALARP (As Low As Reasonably Practicable) requires that risks be reduced until the cost of further reduction is grossly disproportionate to the additional safety benefit gained.

Question 5

Which qualitative risk assessment technique uses a visual diagram showing causes on one side and consequences on the other side of a 'tie'?

Accepted Answer

Bow-Tie Diagram

Answer

A Bow-Tie Diagram combines fault tree analysis (causes on the left) with event tree analysis (consequences on the right) around a central hazardous event, resembling a bow tie.

Certified Safety Professional Exam Practice Test

Certified Safety Professional Exam Practice Test

CSP Hazard Identification and Risk Assessment 2