Top 150+ Solved Magnetic Particle Testing Level 1 MCQ Questions Answer
Q. The flux within and surrounding a magnetised part or around a conductor carrying acurrent is known as:
a. Saturation point
b. Magnetic field
c. Ferromagnetic
d. Paramagnetic
Q. A metal that is difficult to magnetise is said to have:
a. High permeability
b. Low permeability
c. High reluctance
d. Low retentivity
Q. Which residual field is most difficult to demagnetise?
a. Longitudinal
b. Circular
c. Vector
d. Binodal
Q. To detect lengthwise defects on the inside diameter of hollow parts, you should:
a. Pass current through it
b. Magnetise with a coil
c. Pass current through a central conductor
d. Increase the amperage used
Q. Which of the following is most often used for dry magnetic particle inspection:
a. Full cycle direct current
b. Half wave rectified alternating current
c. High voltage, low amperage current
d. Direct current from electrolytic cells
Q. When a magnetic field is induced in a part with prods spaced 150mm apart, the fieldis:
a. Solenoidal
b. Circular
c. Longitudinal
d. Distorted trapezoidal
Q. With current flowing from + to - in a coil, a longitudinal field is created. Which of thefollowing may be used to establish the direction of the magnetic field?
a. Left hand rule
b. Right hand rule
c. Ohms law
d. There is no relevant law
Q. Which form of magnetisation is easiest to control in most parts?
a. Longitudinal magnetisation
b. Permanent magnetism
c. Circular magnetization
d. Parallel magnetization
Q. The strength of a magnetic field within a coil is determined by:
a. The current in the coil
b. The number of turns in the coil\
c. The diameter of the coil
d. All of the above factors
Q. The field in a section of pipe being magnetised by means of a central conductor isstronger at:
a. The ends of the pipe
b. The outer surface of the pipe
c. The inside surface of the pipe
d. The middle of the pipe wall
Q. The space within and surrounding a magnetized part of a conductor carrying a currentis known as:
a. Saturation point
b. Magnetic field
c. Ferromagnetic
d. Paramagnetic
Q. Subjecting the part to a magnetic field that is constantly reversing in polarity andgradually diminishing in strength accomplishes which of the following:
a. Magnetises the part
b. Removes residual field from the part
c. Soaks in the flux density
d. Helps find deep lying defects
Q. The type of method most frequently used with mobile equipment is the:
a. Indirect induction method
b. Wet method with auxiliary tank
c. Yoke method
d. Dry magnetic particle powder method
Q. Which of the following is NOT a liquid vehicle in which particles are suspended inmagnetic particle testing:
a. Water treated with a wetting agent
b. Kerosene
c. Gasoline
d. Water treated with antifoam