A vigorous heat application with a hot pack is an example of a

One advantage of nondedicated smoke control systems is:

A. the elaborate nature of the system controls. B. less chance of component failure due to regular use and maintenance. C. the operation and control are simpler than dedicated smoke control systems. D. nondedicated systems are less likely to be affected by modification or failure of other building systems.

To which of the following classifications does Listerine belong?

A) Bisbiguanide B) Quaternary ammonium compound C) Phenolic D) Oxygenating agent E) Fluoride