TUNE YOUR LOOP: Questions to keep you sharp.
1. For a ground to be an effective ground it must have a low resistive path to earth
(or the conductive surface used as earth).
- TRUE
- FALSE
2. What National Electrical Code (NEC) Article governs grounding?
- 240
- 250
- 430
- 501
3. Potential is measured in volts.
- TRUE
- FALSE
4. Lightning is a form of ESD.
- TRUE
- FALSE
5. DC Control voltage (24 V or less) must be grounded.
- TRUE
- FALSE
What are your answers before you read ahead?
1. a
2. b
3. a
4. a
5. b
From the ISA Course Electrical Noise Effects on Instrumentation Control Equipment (TI21) pre-instructional survey.


