Top 150+ Solved Magnetic Particle Testing Level 1 MCQ Questions Answer
Q. A continuous linear indication along the edge of a new fillet weld would most likelybe a:
a. Crater crack
b. Fatigue crack
c. Stress corrosion crack
d. Heat affected zone hydrogen crack
Q. Ferromagnetic material is:
a. Strongly attracted by a magnet
b. Capable of being magnetized
c. Both (a) and (b)
d. Not capable of being magnetized
Q. The retentivity of a material describes:
a. The ease with which it can be magnetized
b. The depth of the magnetic field in the part
c. The length of time required to demagnetise it
d. The ability to retain the magnetic field
Q. The magnetic field is strongest when:
a. The magnetising voltage is flowing
b. The magnetising current is flowing
c. The material exhibits high coercive forces
d. The magnetising current is not flowing
Q. Which statement is true when related to magnetic lines of force?
a. They never cross
b. They are most dense at the poles of a magnet
c. They seek the path of least resistance
d. All of the above
Q. Magnetic lines of force:
a. Travel in straight lines
b. Form a closed loop
c. Are randomly oriented
d. Overlay in highly ferromagnetic materials
Q. The areas on a magnetised part from which the magnetic field is leaving or returninginto the part are called:
a. Salient points
b. Defects
c. Magnetic poles
d. Nodes
Q. The magnetism which remains in a piece of magnetisable material after themagnetising force has been removed is called the:
a. Tramp field
b. Residual field
c. Damped field
d. Permanent field
Q. Which technique is the most sensitive?
a. Continuous
b. Residual
c. Interrupted
d. Counter current
Q. The point at which the magnetism in a material cannot be increased even though themagnetising force continues to increase is known as the:
a. Salient pole
b. Saturation point
c. Residual point
d. Remnant point
Q. An electric current through a copper wire:
a. Creates a magnetic field around the wire
b. Creates magnetic poles in the wire
c. Magnetises the wire
d. Does not create a magnetic field
Q. A longitudinal surface crack in a circularly magnetised part will cause:
a. The magnetic field to die out
b. A decrease in permeability
c. A magnetic leakage field
d. A current to flow
Q. The type of current that is best suited to detect surface discontinuities is:
a. DC
b. AC
c. Pulsating DC
d. Half wave