Discussion
In which of the following methods of electrical resistivity exploration, all four electrodes are placed in a line, but the distance between current electrodes is maintained equal to or more than five times the distance between potential electrodes ?
Answer: C
The arrangement described is the Schlumberger configuration (printed Schlamberger).
In the Schlumberger array the four electrodes are in line and symmetrical about the centre, and the potential electrodes are kept close together: the current electrode spacing AB is at least five times the potential spacing MN. For a sounding, the current electrodes are moved outward while MN stays fixed for as long as the signal allows.
In the Wenner array all four electrodes are equally spaced, so AB is exactly three times MN. In the dipole-dipole array the current pair and potential pair are separated as two dipoles, not with the potential pair between the current electrodes. The Orellana-Mooney name refers to published master curves for interpreting soundings, not to an array.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development