Remote Field Testing - Sample Examination / Interview Questions & Answers - Level 1, Level 2, Level 3

 NDT Level I

1. In remote field testing (RFT), the major electromagnetic energy distribution method is said to be:

a. reflected impedance.

b. through-transmission.

c. piezoelectric energy conversion.

d. magnetic motive force.

2. In a properly designed RFT probe, the detector coil is positioned in the:

a. direct field zone.

b. transition zone.

c. remote field zone.

d. junction between remote field zone and transition zone.

3. The zone next to the near zone is called the:

a. transition zone.

b. normal zone.

c. near field extension zone.

d. remote field zone.

NDT Level II

1. In the remote field zone with distance, the magnetic field distribution decays:

a. linearly.

b. exponentially.

c. logarithmically.

d. and then increases with distance.

2. The exciter and the receiver coil/ coils in a remote field probe are separated by a distance greater than

_____ the tube diameter.

a. twice

b. three times

c. one time

d. four times

3. Frequencies selected for RFT inspection are:

a. higher than used in eddy current.

b. lower than used in eddy current.

c. carefully selected and must never be changed during an inspection.

d. higher than used in ultrasonic testing.