A person has started a new technical job. In which situation would ESD be an issue?

Question:
A person has started a new technical job. In which situation would ESD be an issue?

• when installing a processor
• when using a grounded mat and working on a computer on an ungrounded workbench
• when installing a dual-voltage power supply
• while exchanging one laptop AC adapter with one that is not from the original equipment manufacturer

Other case

• when installing RAM
• when installing an additional display in a workplace cubicle
• when replacing high voltage laser printer parts
• while attaching speakers to a surround sound card

Other case

• while exchanging one laptop AC adapter with one that is not from the original equipment manufacturer
• when using a grounded mat and working on a computer on an ungrounded workbench
• when replacing a motherboard
• when installing a dual-voltage power supply

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