CESCO Risk Assessment & Hazard Control 2

Question 1

In a qualitative 5x5 risk matrix, risk is typically determined by combining which two factors?

Accepted Answer

Likelihood and severity

Answer

Risk matrices rate a hazard by plotting how likely it is to occur against how severe the consequence would be.

Question 2

Which hazard analysis technique uses guide words such as 'more,' 'less,' 'no,' and 'reverse' applied to process parameters?

Accepted Answer

HAZOP

Answer

A Hazard and Operability Study (HAZOP) systematically applies guide words to design parameters to identify deviations.

Question 3

A Fault Tree Analysis begins with which element?

Accepted Answer

A defined top (undesired) event

Answer

FTA is a top-down deductive method that starts with an undesired event and works backward to contributing causes.

Question 4

In Failure Mode and Effects Analysis (FMEA), the Risk Priority Number (RPN) is calculated as:

Accepted Answer

Severity x Occurrence x Detection

Answer

RPN multiplies severity, occurrence, and detection ratings to prioritize failure modes.

Question 5

A Job Hazard Analysis (JHA) is most effectively structured by:

Accepted Answer

Breaking a task into sequential steps and identifying hazards and controls for each

Answer

A JHA divides a job into steps, identifies hazards in each step, and assigns controls.

CESCO - Certified Environmental, Safety and Compliance Officer Practice Test