Answer :
Final answer:
The weld type being referred to is a fillet weld, which is economical and requires no advanced joint preparation but is not as strong as a full-penetration groove weld. So, correct the option is 1) Fillet weld
Explanation:
The type of weld being described is a fillet weld. This weld does not require advanced preparation of the joint, making it a quick and economical option for joining two surfaces at a right angle. However, it is not as strong as a full-penetration groove weld, which involves preparing the edges of the materials to form a groove and then filling that groove with weld material to create a strong bond.