Pneumatic controls operate by:
A) Hydraulic pressure. B) Air pressure.
C) Electricity. D) Water pressure.
B
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Guard boards and toe boards are needed when scaffolding is more than _____ feet high.
a. four b. five c. six d. seven
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The movement of spray droplets by wind is called ____________________
Fill in the blank(s) with correct word
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"Candling" an egg is a test of fertility.
Answer the following statement true (T) or false (F)
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The rationale for emergency preparation is that the emergency response professionals quickly organize, stabilize, and administer.