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Locking and Unlocking

Locks are devices which are commonly used for houses to keep all the necessary things safe.They can be used to anything and anywhere, we also get a key with it to lock and unlock.

  • Quiz By: John P.George on 16-Sep-11

    Plays: 1038
  • Category : General in Quiz

    Tags : locks
Locking and Unlocking
  • 1 of 10:

    First mechanical locks were made up of ?

  • A) Steel
  • B) Iron
  • C) Wood
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