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Logic Families and Their Characteristics - Technical MCQs

Q1:

Special handling precautions should be taken when working with MOS devices. Which of the following statements is not one of these precautions?

A All test equipment should be grounded.

B MOS devices should have their leads shorted together for shipment and storage.

C Never remove or insert MOS devices with the power on.

D Workers handling MOS devices should not have grounding straps attached to their wrists.

ANS:D - Workers handling MOS devices should not have grounding straps attached to their wrists.

All CMOS devices should be placed on a ground bench surface and operators should ground themselves prior to handling devices since a worker can be statically charged with respect to the bench surface. Wrist straps in contact with skin are strongly recommended.