HSE Occupational Health and Industrial Hygiene 3

Question 1

Under OSHA's Hazard Communication Standard (HCS), Safety Data Sheets must contain how many standardized sections?

Accepted Answer

16

Answer

The GHS-aligned HCS requires 16 standardized sections on every SDS to ensure consistent hazard information worldwide.

Question 2

What is the primary purpose of conducting a job hazard analysis (JHA) before assigning a new task to workers?

Accepted Answer

To identify hazards and determine protective measures before the task begins

Answer

A JHA systematically breaks down a job into steps, identifies associated hazards, and recommends controls, preventing incidents proactively.

Question 3

Which health effect is most closely associated with chronic inhalation of crystalline silica dust?

Accepted Answer

Silicosis

Answer

Silicosis is the irreversible fibrotic lung disease caused by prolonged inhalation of respirable crystalline silica particles.

Question 4

An industrial hygienist measures a TWA of 0.08 mg/m³ for respirable crystalline silica. OSHA's PEL (as a TWA) is 0.05 mg/m³. What must the employer do first?

Accepted Answer

Implement feasible engineering and work-practice controls

Answer

When exposure exceeds the PEL, OSHA's silica standard requires employers to first use feasible engineering and work-practice controls before relying on respirators.

Question 5

Which parameter is measured by a direct-reading photoionization detector (PID)?

Accepted Answer

Volatile organic compound concentration

Answer

PIDs use UV light to ionize gas molecules and measure the resulting current, making them ideal for detecting and quantifying VOCs.

(HSE) Certified Health Safety Environment Practice Test

(HSE) Certified Health Safety Environment Practice Test

HSE Occupational Health and Industrial Hygiene 3