Chains, Ropes, and Slings Test I Source: Questions and answers from the National Safety Council
Progress Indicator:
 
Question 3 of 20
3. An instrument, useful in monitoring blasting operations, that record ground vibration, particle velocity, displacement, or acceleration is generally measured and recorded in three mutually perpendicular directions.
Choices:
- Receptor (Acceptor)
- Safety Standard
- Seismograph
- Stray Current
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