Which of the following statements is not correct?
A) Make the initial contact with the conductor(s) with the back of one hand or fingers before grasping it between the fingers.
B) Always use lock-out/tag-out procedures for power when possible.
C) If multiple power sources in a PLC system are present, you should check the status of each before work on the system problem starts.
D) It is usually safe to make direct contact with victim receiving a shock as you remove the victim from the shock source.
D
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Answer the following statement(s) true (T) or false (F)
1. The human ear detects all frequencies equally. 2. A sound wave cannot exist at various different frequencies. 3. Any two sounds whose frequencies make a 2:1 ratio are said to be separated by an octave. 4. The Potential Acoustic Gain Formula states that as the listeners double their distance from the sound source, the sound pressure level they perceive will decrease by 6dB. 5. Low frequencies are direct line of sight.
The primary purpose of the OSHA and ASME standards for personnel-platform design and construction is _____.
a. to provide an income stream for the federal government from fines b. to establish extraordinary government control over the industry c. the safety of the platform occupants d. to give all competitors equal access to the market
If the edge of a countertop has a ____ corner, the laminate can be bent.
a.square b.beveled c.fluted d.rounded
Suspension cylinders could use either of these two kinds of gas:
a. Helium or oxygen b. Helium or nitrogen c. Nitrogen or acetylene d. Butane or propane