CPT Safety Protocols & Hazard Management 3

Question 1

Which tool is most commonly used during a Process Hazard Analysis (PHA) to systematically identify deviations from design intent?

Accepted Answer

HAZOP (Hazard and Operability Study)

Answer

HAZOP uses guide words (e.g., MORE, LESS, NO) applied to process parameters to identify deviations and their potential consequences.

Question 2

A process vessel is being prepared for maintenance entry. After blinding and purging, the confined space atmosphere tests at 20.8% oxygen and 0 ppm toxic gases. What should happen next?

Accepted Answer

Issue the confined space entry permit and post an attendant

Answer

Acceptable atmospheric conditions are necessary but not sufficient alone; a formal permit must be issued and an attendant stationed outside.

Question 3

What does 'inherently safer design' (ISD) mean in process safety?

Accepted Answer

Eliminating or reducing hazards at the source rather than relying on controls

Answer

ISD reduces risk by minimizing inventory, substituting less hazardous materials, or simplifying processes so hazards cannot occur rather than just being controlled.

Question 4

Which of the following best describes the purpose of a safety shower and eyewash station in a chemical processing area?

Accepted Answer

To flush corrosive or hazardous chemicals from the body or eyes immediately after contact

Answer

Safety showers and eyewashes provide immediate, high-volume water flushing to minimize injury from chemical exposure within 10 seconds of exposure.

Question 5

In the hierarchy of controls, which control measure is considered MOST effective for managing workplace hazards?

Accepted Answer

Elimination of the hazard

Answer

Elimination removes the hazard entirely and is the most reliable because it does not depend on human behavior or equipment maintenance.

(CPT) Certified Process Technician Practice Test

(CPT) Certified Process Technician Practice Test

CPT Safety Protocols & Hazard Management 3