Question

1. what does the term \interpass temperature\ refer to in smaw welding?

a) the temperature of the workpiece during welding
b) the temperature of the weld bead after welding
c) the temperature of the welding electrode
d) the temperature of the welding machine

1. in smaw welding, what is \stringer\ bead?

a) a type of welding defect
b) a straight line weld bead
c) a welding electrode
d) a type of filler material

1. what is the primary cause of \inclusions\ in smaw welding?

a) not enough filler material deposition
b) lack of preheating
c) contaminants trapped in the weld
d) incorrect electrode angle

1. what is the purpose of \post - weld heat treatment\ in some smaw applications?

a) to reheat the workpiece for additional welding
b) to cool the workpiece quickly
c) to relieve residual stresses and improve weld properties
d) to inspect the weld for defects

1. which of the following is not a type of joint commonly used in smaw welding?

a) butt joint
b) lap joint
c) banana joint
d) t - joint

1. when smaw welding, what is

oot penetration\?
a) the depth to which the weld penetrates the base metal on the first pass
b) a type of welding electrode
c) the final pass of the weld
d) the appearance of the weld bead

Explanation:

• Question 35: In SMAW (Shielded Metal Arc Welding), the interpass temperature is the temperature of the workpiece during welding. It is crucial for controlling the cooling rate and ensuring proper weld quality.
• Question 36: A "stringer" bead in SMAW is a straight - line weld bead. It is a basic type of weld bead formation.
• Question 37: Inclusions in SMAW welding are mainly caused by contaminants trapped in the weld. These contaminants can come from the base metal surface, electrode coatings, etc.
• Question 38: Post - weld heat treatment in SMAW is to relieve residual stresses and improve weld properties. Residual stresses can cause cracking over time, and heat treatment can enhance the mechanical properties of the weld.
• Question 39: Banana joint is not a commonly used joint type in SMAW. Butt, lap, and T - joints are standard joint configurations in welding.
• Question 40: Root penetration in SMAW is the depth to which the weld penetrates the base metal on the first pass. It is important for ensuring a strong and complete weld at the root of the joint.

Answer:

• 35. a) The temperature of the workpiece during welding
• 36. b) A straight line weld bead
• 37. c) Contaminants trapped in the weld
• 38. c) To relieve residual stresses and improve weld properties
• 39. c) Banana joint
• 40. a) The depth to which the weld penetrates the base metal on the first pass