Top 1000+ Solved Non Destructive Testing and Evaluation MCQ Questions Answer
Q. Halogen content of penetrant materials is limited because of the possibility of stresscorrosion cracking in which of the following materials?
a. High tensile steel
b. Austenitic stainless steel
c. Titanium alloys
d. All of the above
Q. The most likely cause of loss of performance in a lipophilic emulsifier is:
a. High viscosity
b. Water contamination
c. Phase separation
d. Improper concentration
Q. In performing a water content test of a lipophilic emulsifier per ASTM D-95, whatsolvent is used?
a. Naptha
b. Trichloroethane
c. Benzene
d. Xylene
Q. Which of the following developers would you expect to be the least sensitive?
a. Water suspendable wet (immersion)
b. Water suspendable wet (spray)
c. Dry immersion (dip)
d. Non-aqueous wet (solvent spray)
Q. Which of the following developers would you expect to be the most sensitive?
a. Water suspendable wet (immersion)
b. Water suspendable wet (spray)
c. Dry immersion (dip)
d. Non-aqueous wet (solvent spray)
Q. Which of the following developers would you expect to be the least sensitive?
a. Water suspendable wet (immersion)
b. Water suspendable wet (spray)
c. Water soluble (spray)
d. Water soluble (immersion)
Q. Which of the following developers would you expect to be the most sensitive?
a. Water suspendable wet (immersion)
b. Water suspendable wet (spray)
c. Water soluble (spray)
d. Water soluble (immersion)
Q. Dual purpose penetrants are viewed under what type of light?
a. White light
b. Black light
c. Both a and b
d. None of the above
Q. When is it possible to detect slightly sub-surface defects using penetrant testing?
a. Only if you are using fluorescent penetrant
b. When using post-emulsifiable penetrant
c. It is not possible to detect slightly sub-surface defects using penetrant testing
d. When using dual sensitivity penetrants
Q. Which of the following would be classed as an in-service fault?
a. A shrinkage crack
b. A fatigue crack
c. A grinding crack
d. All could be in-service faults
Q. Magnetic particles testing is most likely to find subsurface discontinuities in:
a. Soft steels with high permeability
b. Soft steels with low permeability
c. Hardened steels with low permeability
d. Hardened steels with high permeability
Q. Which of the following is not an advantage of magnetic particles testing?
a. Fast and simple to perform
b. Can detect discontinuities filled with foreign material
c. Most reliable for finding surface cracks in all types of material
d. Works well through a thin coat of paint
Q. The most effective NDT method for locating surface cracks in ferromagnetic materialsis:
a. Ultrasonic testing
b. Radiographic testing
c. Magnetic particle testing
d. Liquid penetrant testing
Q. Which of the following may cause magnetic particle test indications?
a. A joint between two ferromagnetic materials of different permeability
b. A shrink fit joint in ferromagnetic materials
c. A brazed joint in ferromagnetic materials
d. All of the above
Q. Opposition to establishment of a magnetic field is called:
a. Reluctance
b. Retentivity
c. Permeability
d. Electromagnetism