Practice question

A diesel hammer's stroke (the height the ram rises per blow) is monitored because it indicates:

The pile color
The energy being delivered; a higher stroke under increasing resistance reflects more energy per blow, which must stay within the hammer and pile limits
The operator's experience level
The ambient air pressure only

Answer: B — The energy being delivered; a higher stroke under increasing resistance reflects more energy per blow, which must stay within the hammer and pile limits

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