Standard fire pumps must be equipped with master pressure gauges that read pressures up to _____ psi

Which of the following statements about oxygen concentrations and combustions is MOST accurate?

A. Combustion does not occure at concentrations below about 18% because fire needs oxygen to burn. B. Combustion will occur below normal oxygen levels only when the substance burning is an oxidizer C. Combustion requires oxygen levels in the immediate range of ambient air (21%) in order to burn freely D. Combustion may occur at oxygen concentrations as low as 14% or lower given the right circumstances

On the Smiths Medical Pneupac ventiPAC ventilator, which of the following would provide a 15 breaths/min respiratory rate?

a. Set inspiratory-to-expiratory ratio at 1:4 b. Set the rate control = 15 breaths/min c. Set inspiratory time at 1.5 s and expiratory time at 2.5 s d. Set flow rate control = 30 L/min, tidal volume = 500 mL, and expiratory time = 3 seconds