Top 1000+ Solved Non Destructive Testing and Evaluation MCQ Questions Answer
Q. Which of the following produces a circular field?
a. Coil
b. Head shot
c. Yoke
d. All of the above
Q. A technique used to find transverse discontinuities at the ends of longitudinallymagnetised bars by the use of transient currents is called:
a. A coil technique
b. A fast break technique
c. A yoke technique
d. A head shot
Q. The best method of inducing a circular field in a tube is by a:
a. Central conductor
b. Head shot
c. Coil
d. Prod technique
Q. Magnetic flux density is zero at:
a. The inside surface of a tube magnetised with a central conductor
b. The outside surface of a tube magnetised with a central conductor
c. The outside surface of a bar magnetised with a head shot
d. The centre of a bar magnetised with a head shot
Q. Magnetic flux density is highest at:
a. The outside surface of a non-ferromagnetic tube magnetised with a central conductor
b. The inside surface of a non-ferromagnetic tube magnetised with a central conductor
c. The outside surface of a ferromagnetic tube magnetised with a central conductor
d. The inside surface of a ferromagnetic tube magnetised with a central conductor