Answer :
Final answer:
The statement "Tack welds do not require inspection before final welding" is not true regarding the acceptability of a tack weld, as all welding activities generally require some level of inspection for quality and safety.
Explanation:
The statement that is not true regarding the acceptability of a tack weld is c) Tack welds do not require inspection before final welding. It's important to note that all welding, including tack welding, usually requires some level of inspection to ensure quality and safety before proceeding to the final welding stages. Tack welds are indeed temporary welds used to hold parts in place (a)), they should be strong enough to maintain the position of parts during the final welding process (b)), and they should typically be ground flush with the base metal after final welding to ensure a smooth and uniform surface (d)).
