Ingeniero

CBIP Examination Paper - Magnetic Particle Inspection
Level 1 General
1

The magnetic field is strongest when:
A. The item is demagnetised
B. The magnetising voltage is reversing
C. Themagnetising current is not flowing
D. The magnetising current is flowing

2

A Longitudinal magnetic field may be induced into a specimen by which of the following methods?
A. Passing a currentthrough the part (head shot)
B. By using a Coil
C. Central conductor (threader bar)
D. All of the above

3

Magnetic Particle prods are used for:
A. Measuring the permeability of the material
B.Portable inspection producing a circular field
C. Inspection of aluminium parts
D. None of the above

4

Wrapping a cable around a shaft will:
A. Produce a circular field in the part
B. Producea 45 degree magnetic field
C. Produce a longitudinal field in the part
D. Saturate the part irrespective of the amount of current

5

The distance between the heads on a magnetic particle benchunit will:
A. Have no affect on the strength of the magnetic field produced
B. Effect the permeability of the part
C. Require the current values to be changed to match the distance
D. Require thecurrent values to be revised

6

Which of the following is the most effective method for the detection of sub surface defects?
A. AC
B. Half Wave DC
C. Wet method
D. Sub surface defects cannotbe detected with MT

7

When preparing a bath it is important to have the bath strength/concentration at the proper level,
as too many particles can result in:
A. An increase in sensitivity
B.Having to increase the magnetising current
C. Masking some of the indications
D. None of the above

8

When using the wet continuous method, the flow of suspension from the hose should be shutoff:
A. 5 to 10 seconds after stopping the current
B. Immediately before applying the current
C. While the current is flowing
D. 10 seconds before applying the current

9

The generally...