Atmospheres with oxygen concentrations below ____ percent are classified as oxygen-deficient atmospheres.

Which of the following statements about the time of release of a biological agent is CORRECT?

a. The patient's breath usually has a strange odor. b. You can see a cloud of vapor above storage containers. c. Multiple patients immediately complain of similar symptoms. d. There may be no indication of an agent being released at all.

Which of the following types of electrical service panels are currently used to prevent overloads?

A. Fuse boxes B. Circuit breakers C. Master control switches D. Battery-powered kill panel