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2.1.4 ESD Protection

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Questions and Answers

What is the primary reason for unplugging a system before using a grounding strap?

To eliminate the risk of electric shock. (correct)

To prevent static buildup.

To ensure the power supply is completely off.

To avoid damage to the internal components.

What is a misconception about the safety of a powered-off system with an attached power supply?

There will be no current flowing if the power supply switch is off.

The system will not supply current unless the power is turned on. (correct)

It is safe to work on the components without additional precautions.

The motherboard is safe because it only receives DC current.

Which type of current is likely to be present on the motherboard even when the system is switched off?

High voltage current

Low frequency current

AC current

DC current (correct)

What should you do to protect against electrostatic discharge damage while working on a PC system?

Use a static mat and unplug the system. Signup and view all the answers

What is the potential consequence of a fault in the power supply while the system is plugged in?

Risk of receiving an electric shock. Signup and view all the answers

What is the primary purpose of using a static mat when working on a PC system?

To equalize static charge between components Signup and view all the answers

Which action is recommended before attaching grounding clips when working on a PC system?

Unplug the case Signup and view all the answers

How does grounding the case to the mat prevent static charge build-up?

It establishes conductivity that dissipates charge Signup and view all the answers

What role does the wristband play in ESD protection?

It grounds the individual to eliminate charge build-up Signup and view all the answers

Which of the following is NOT a method to prevent electrostatic discharge while working on a PC?

Wearing rubber gloves Signup and view all the answers

Why is it necessary to maintain equalized charges while working on a PC?

To prevent damage to sensitive electronic parts Signup and view all the answers

What is the consequence of connecting grounding clips when the PC system is plugged in?

Risk of electric shock Signup and view all the answers

What should you do if you feel static electricity before touching PC components?

Use a grounding strap Signup and view all the answers

Study Notes

Electrostatic Discharge (ESD) Prevention

ESD occurs when different electrical potentials build up between objects due to static charge.
ESD can damage PC components.
Static mats equalize static charges by providing a conductive surface that allows charge to dissipate.
Grounding is essential for ESD Prevention, creating a single electrical potential between you, the case, and the mat.
You need to establish a connection between the case, the mat, and yourself.
Ground the case to the mat using an alligator clip.
Ground yourself by connecting a wristband with a metal plate to your wrist.
Always unplug the PC system before connecting grounding cables.
Plugged-in power supplies can still provide a continuous current, even when the system is turned off.
This can be hazardous as a faulty power supply could leak AC current to the system.
A static mat and proper grounding procedures are essential for preventing ESD damage.

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Description

This quiz covers essential procedures for preventing Electrostatic Discharge (ESD) damage to PC components. It discusses the importance of grounding, the use of static mats, and safe practices when working with electronic devices. Test your knowledge on effective ESD prevention methods and practices.