Which of the following instructions is accurate when performing a visual acuity test using the Snellen letter chart?
A. Close the eye not being tested
B. Start reading the chart at the 40-foot line
C. Stand with heels at the 20-foot mark
D. Stand with toes at the 20-foot mark
E. Hold the chart at arm's length
Answer: C
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The most basic rule of providing therapeutic massage is:
A) Watch your pressure B) Do no harm C) Trust your instincts D) Take calculated risks
Private dwelling fire safety surveys are performed:
A. on a voluntary basis. B. when required by local laws. C. as code infractions become obvious. D. every time occupants change the structure.
Which of the following types of portable fire extinguishers is limited to the use of water as the extinguishing agent?
A. Stored-pressure extinguisher B. Pump-operated extingusiher C. Combination-pressure extinguisher D. Cartridge-operated extinguisher
The function of the 12 pairs of cranial nerves is to:
A. conduct sensory impulses from the skin to the spinal cord. B. allow transmission of sensations directly to and from the brain. C. perform specialized functions in the neck and thoracic cavity.