35. what does the term \interpass temperature\ refer to in smaw welding?\na) the temperature of the…

35. what does the term \interpass temperature\ refer to in smaw welding?\na) the temperature of the workpiece during welding\nb) the temperature of the weld bead after welding\nc) the temperature of the welding electrode\nd) the temperature of the welding machine\n36. in smaw welding, what is \stringer\ bead?\na) a type of welding defect\nb) a straight line weld bead\nc) a welding electrode\nd) a type of filler material\n37. what is the primary cause of \inclusions\ in smaw welding?\na) not enough filler material deposition\nb) lack of preheating\nc) contaminants trapped in the weld\nd) incorrect electrode angle\n38. what is the purpose of \post - weld heat treatment\ in some smaw applications?\na) to reheat the workpiece for additional welding\nb) to cool the workpiece quickly\nc) to relieve residual stresses and improve weld properties\nd) to inspect the weld for defects\n39. which of the following is not a type of joint commonly used in smaw welding?\na) butt joint\nb) lap joint\nc) banana joint\nd) t - joint\n40. when smaw welding, what is \root penetration\?\na) the depth to which the weld penetrates the base metal on the first pass\nb) a type of welding electrode\nc) the final pass of the weld\nd) the appearance of the weld bead

35. what does the term \interpass temperature\ refer to in smaw welding?\na) the temperature of the workpiece during welding\nb) the temperature of the weld bead after welding\nc) the temperature of the welding electrode\nd) the temperature of the welding machine\n36. in smaw welding, what is \stringer\ bead?\na) a type of welding defect\nb) a straight line weld bead\nc) a welding electrode\nd) a type of filler material\n37. what is the primary cause of \inclusions\ in smaw welding?\na) not enough filler material deposition\nb) lack of preheating\nc) contaminants trapped in the weld\nd) incorrect electrode angle\n38. what is the purpose of \post - weld heat treatment\ in some smaw applications?\na) to reheat the workpiece for additional welding\nb) to cool the workpiece quickly\nc) to relieve residual stresses and improve weld properties\nd) to inspect the weld for defects\n39. which of the following is not a type of joint commonly used in smaw welding?\na) butt joint\nb) lap joint\nc) banana joint\nd) t - joint\n40. when smaw welding, what is \root penetration\?\na) the depth to which the weld penetrates the base metal on the first pass\nb) a type of welding electrode\nc) the final pass of the weld\nd) the appearance of the weld bead

Answer

Brief Explanations:

  • Question 35: In SMAW (Shielded Metal Arc Welding), "interpass temperature" refers to the temperature of the workpiece during welding. This is crucial for controlling the microstructure and properties of the weld metal.
  • Question 36: A "stringer" bead in SMAW welding is a straight - line weld bead. It is a basic type of weld bead used in many welding applications.
  • Question 37: "Inclusions" in SMAW welding are primarily caused by contaminants trapped in the weld. These contaminants can come from the base metal, electrode coatings, or the surrounding environment.
  • Question 38: The purpose of "post - weld heat treatment" in SMAW applications is to relieve residual stresses and improve weld properties. This helps to enhance the mechanical and metallurgical characteristics of the welded joint.
  • Question 39: A "banana joint" is not a commonly used type of joint in SMAW welding. The commonly used joints are butt, lap, and T - joints.
  • Question 40: "Root penetration" in SMAW welding is the depth to which the weld penetrates the base metal on the first pass. It is an important parameter for ensuring a sound weld.

Answer:

  1. a) The temperature of the workpiece during welding
  2. b) A straight line weld bead
  3. c) Contaminants trapped in the weld
  4. c) To relieve residual stresses and improve weld properties
  5. c) Banana joint
  6. a) The depth to which the weld penetrates the base metal on the first pass