Q1: Lap joints are preferred over butt joints in soldering/brazing, because these joints are

ANS:D - The lap joints are easily made.

Lap joints are preferred over butt joints in soldering/brazing because they are weaker in shear but stronger in tension. This characteristic is beneficial in applications where tensile strength is more critical than shear strength. Additionally, lap joints provide a larger bonding area, which can distribute stresses more evenly and reduce the likelihood of joint failure. Moreover, lap joints are relatively easier to make compared to butt joints, making them more practical in many soldering and brazing applications.