Which joint does not require any special edge preparation?

The square welds are the most economical for pieces thinner than 3/8”, because they don't require the edge to be prepared. Double-groove welds are the most economical for thicker pieces because they require less weld material and time.

Explanation:

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Explanation:

need same answer

cassius, casca, and their allies plant false documents to manipulate brutus to join their cause to remove caesar. after doing so, they visit brutus at night in his home to persuade him of their views. there they plan caesar's death. brutus is troubled but refuses to confide in his devoted wife, portia. on 15 march, caesar's wife, calpurnia, urges him not to go to the senate. she has had visionary dreams and fears the portents of the overnight storms.