To maintain proper airflow while working in a fume hood, what position should the sash be kept?: A. As low as practical B. All the way up C. At the certification height D. Six inches high

When the fume hood sash is opened up all the way, which of the following best describes what will happen?: A. Vapors will be contained within the hood B. Proper airflow will be maintained to ensure a fume hood's protective function C. The hood face velocity will slow down potentially allowing vapors to spill into the room air D. Airflow will stop

Which of the following should you not do when working in a fume hood?: A. Place the chemicals 6 inches from the front opening B. Make sweeping motions with your arms C. Put your head inside the hood D. Keep traffic near the fume hood to a minimum E. B and C

Before you start work in the fume hood, you should do all of the following except: A. Place all the materials to be used inside the fume hood B. Make sure the certification has not expired C. Push all materials to the edges of the fume hood to make your work area is as big as possible D. Evaluate the need for bench top protectors

After finishing working in a fume hood, which of the following should you do?: A. Store the chemical containers in the fume hood B. Return the chemical containers to the designated storage locations C. Allow chemical waste to evaporate in the hood

Before using a fume hood you need to be sure the certification sticker is signed by your laboratory supervisor: A. True B. False