Undercut is a groove along the _____ of the weld.

Undercut is a groove along the _____ of the weld.
 
  A) middle B) side C) top D) bottom

---

[Ques. 2] X-rays are very sensitive and can be used to inspect the _____ of almost any material.
 
  A) density B) magnetic flux
  C) magnetic permeability D) acoustic impedance

---

[Ques. 3] Ultrasonic monitors are very effective at detecting cracks in _____ materials.
 
  A) thick B) thin C) surface D) hot

---

[Ques. 4] Magnetic particle inspection works only for materials that can be _____.
 
  A) immersed B) magnetized C) bent D) heated

---

[Ques. 5] The major reasons for false indications in dye penetrant tests are rough, irregular surfaces of the test metal and failure to _____.
 
  A) highlight the cracks properly B) apply the penetrant correctly
  C) draw the penetrant out of the sample D) stain properly