Laboratory Science Lab Safety and Equipment

Question 1

What class of fire extinguisher is appropriate for a chemical laboratory fire involving flammable liquids?

Accepted Answer

Class B

Answer

Class A

Answer

Class C

Answer

Class D

Question 2

Which type of personal protective equipment (PPE) is required when handling concentrated acids?

Accepted Answer

Chemical splash goggles and acid-resistant gloves

Answer

Latex gloves only

Answer

Safety glasses only

Answer

Face shield only

Question 3

What is the correct procedure when a chemical spill occurs on the skin?

Accepted Answer

Flush with large amounts of water for at least 15 minutes

Answer

Apply neutralizing agent immediately

Answer

Cover with a dry cloth and seek help

Answer

Apply ice to the affected area

Question 4

Which biosafety level (BSL) is required for working with agents that pose a moderate risk to personnel but low risk to the community?

Accepted Answer

BSL-2

Answer

BSL-1

Answer

BSL-3

Answer

BSL-4

Question 5

What is the purpose of a fume hood in a laboratory?

Accepted Answer

To contain and exhaust hazardous vapors away from lab personnel

Answer

To store chemicals safely

Answer

To protect samples from contamination

Answer

To maintain sterile conditions

Question 6

According to OSHA's Hazard Communication Standard, what must be on every chemical container in the lab?

Accepted Answer

GHS-compliant label with hazard information

Answer

Purchase date and cost

Answer

Technician's initials

Answer

Storage temperature only