CIH CIH - Certified Industrial Hygienist Biological Hazards and Biosafety Questions and Answers 2

Question 1

Which biological agent is classified as a Category A bioterrorism agent by the CDC due to its high mortality and potential for widespread impact?

Accepted Answer

Bacillus anthracis

Answer

Staphylococcal enterotoxin B

Answer

Brucella species

Answer

Hantavirus

Question 2

What does the term 'zoonosis' refer to in the context of occupational biological hazards?

Accepted Answer

Diseases transmissible between animals and humans

Answer

Infections confined to laboratory animals only

Answer

Microorganisms found only in soil environments

Answer

Infections caused by parasitic vectors

Question 3

Which engineering control is most effective for preventing airborne biological hazard exposure in a clinical microbiology laboratory?

Accepted Answer

Biosafety cabinet (BSC)

Answer

Local exhaust ventilation hood

Answer

General dilution ventilation

Answer

Laminar flow clean bench

Question 4

What exposure assessment tool is used to estimate airborne concentrations of mold in indoor air quality investigations?

Accepted Answer

Spore trap sampling analyzed by direct microscopy

Answer

Impinger sampling with culture media

Answer

Cascade impactor with filter media

Answer

Swab sampling for surface contamination

Question 5

Under OSHA's Bloodborne Pathogens Standard, which items must be included in an Exposure Control Plan?

Accepted Answer

Exposure determination, implementation schedule, and procedures for evaluating exposure incidents

Answer

Only engineering controls and PPE requirements

Answer

Only vaccination records and post-exposure follow-up

Answer

Training records and medical surveillance logs only

Question 6

Which work practice control is most critical in reducing Legionella pneumophila risk in building water systems?

Accepted Answer

Maintaining water temperatures outside the 77–108°F growth range

Answer

Installing UV air purifiers in HVAC systems

Answer

Providing N95 respirators to building occupants

Answer

Testing for Legionella monthly using culture methods