Block 3 - 3B - ESD

What type of failure is it when a component or assembly totally fails?

• Catastrophic

• Intermitten

• Latent

Intermitten failure is...

• Irregular failure

• Items appear to be operating normally, but may experience permanent failure

• Total failure of component or assembly

Latent failure is...

• Total failure of component or assembly

• Irregular failure

• items appear to be operating normally, but may experience premature failure

With the wrist strap, what is the minimum amount of resistance needed to prevent shock?

• 10 megaohms

• 1 megaohm

• 1miliohms

• 10 ohms

What do you have to do to dissipate static charges after removing an ESDS device from an aircraft?

• Test the device with a multimeter

• Install conductive caps on all external connectors

• Wrap the ESDS device in plastic

• Stand on an insulated mat

Which of the following should you follow to protect ESDS device from ESD?

• Test it with a multimeter

• Stand on an insulated mat

• Work on a grounded workstation

• Cover the leads in conductive caps

ESDS are generally packaged with

• Their leads shorted together

• With conductive foam

• With insulated foam

• Their leads exposed

Before installing or removing ESD make sure...

• The aircraft is grounded

• To touch the connector pins

• Test it with a multimeter