Choose the Option That Puts the Waves in Order from Slowest

question 27

Multiple Choice

Choose the option that puts the waves in order from slowest to quickest.

• A) P-waves, S-waves, surface waves
• B) S-waves, P-waves, surface waves
• C) surface waves, P-waves, S-waves
• D) surface waves, S-waves, P-waves

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Definitions:

Scan Time

The amount of time it takes for a PLC to complete one cycle of reading input conditions, executing logic, and updating outputs.

PLC

A programmable logic controller, an industrial digital computer adapted for controlling manufacturing processes.

XIO Instruction

stands for "Examine if Off" in programmable logic controllers (PLC), used to check if a specific condition or input is false or not present.

Physical Input

A hardware interface through which real-world data is received by a system or device.