level 1 q and ans

Question 1

Magnetic particle is a nondestructive testing
method used for:
a. locating surface and near surface
discontinuities in aluminum.
b. locating surface and near surface
discontinuities in steel.
c. finding and measuring material separation.
d. measuring flux density.

Answer 1

b. locating surface and near surface
discontinuities in steel.

Question 2

Ferromagnetic material is:
a. strongly attracted by a magnet.
b. not highly saturated by magnetic fields.
c. a material with a 0 permeability measurement.
d. not capable of being magnetized.

Answer 2

a. strongly attracted by a magnet.

Question 3

The permeability 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 demagnetize it.
d. the ability to retain the magnetic field.

Answer 3

a. the ease with which it can be magnetized.

Question 4

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 demagnetize it.
d. the ability to retain the magnetic field.

Answer 4

d. the ability to retain the magnetic field.