The proportioning method which uses an external pump or head pressure to force foam concentrate into the fire stream is:
A. injection.
B. eduction.
C. premixing.
D. batch-mixing.
A
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When you are caring for a patient with either a medical complaint or traumatic injury, you should typically perform the reassessment:
A) before the secondary assessment. B) when a life-threatening condition is found. C) immediately following the primary assessment. D) while transporting the patient to the hospital.
Which of the following is NOT a way in which the combustibility of an interior finish can contribute to the behavior of fire?
A. It produces smoke and toxic gases. B. It affects the rate of fire growth to flashover. C. It adds to the intensity of a fire because it contributes oxygen. D. It contributes to fire extension by flame spread over its surface.
The cervical spine:
A) is the weakest part of the spinal column, yet is generally the least injured part of the spine. B) includes the first seven bones of the vertebral column that indirectly protect the spinal cord. C) consists of vertebrae that are slightly larger than those of the less powerful thoracic spine. D) supports the weight of the head and permits a high degree of mobility in multiple planes.
The metric system was developed in:
A) England. B) Germany. C) France. D) The United States.