The use of force to free a patient from entrapment is called:

In a commercial kitchen setting, how often should dry-chemical cylinders that weigh less than 150 pounds (68 kg) be tested?

A. Every 5 years B. Every 7 years C. Every 12 years D. Every 15 years

Which type of system employs a deluge-type valve, fire detection devices, and closed sprinklers?

a. Preaction system b. Class III system c. Water curtain system d. Exhauster system