Structural Geology – MCQs

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1. The branch of geology dealing with the study of rock deformation is:





2. The study of rock structures includes:





3. The intensity of deformation in rocks is called:





4. The force applied per unit area is:





5. The ratio of change in shape to original shape is:





6. If stress is removed and rock returns to its original shape, the deformation is:





7. Permanent deformation without fracture is called:





8. Sudden breakage of rocks under stress is:





9. Rocks deform plastically at:





10. A planar structure in rocks formed by layering is called:





11. A fracture along which no displacement has occurred is called:





12. A fracture along which displacement has occurred is:





13. The plane along which fault movement occurs is called:





14. The block of rock above the fault plane is called:





15. The block of rock below the fault plane is called:





16. In a normal fault, the hanging wall moves:





17. In a reverse fault, the hanging wall moves:





18. A nearly vertical fault with horizontal displacement is:





19. A low-angle reverse fault is called:





20. A down-dropped block between two faults is:





21. An uplifted block between two faults is:





22. Bends or curves in rock layers due to stress are called:





23. The fold with limbs dipping away from the axis is:





24. The fold with limbs dipping towards the axis is:





25. A fold with only one limb bent is:





26. A circular upward fold is called:





27. A circular downward fold is:





28. The top of a fold is called:





29. The lowest part of a fold is called:





30. The line dividing two limbs of a fold is called:





31. The angle between a fold limb and horizontal is:





32. The direction of a horizontal line on an inclined plane is:





33. The angle between a line and horizontal plane is:





34. A fold whose axis is horizontal is:





35. A fold whose axis is inclined is:





36. A fold whose limbs dip at the same angle is:





37. A fold whose limbs dip at different angles is:





38. A fold with both limbs dipping in the same direction is:





39. A fold with nearly parallel limbs is:





40. A recumbent fold has:





41. Lineation in structural geology refers to:





42. Cleavage develops best in rocks that are:





43. Slickensides are:





44. The San Andreas Fault is an example of:





45. A nappe is a:





46. A shear zone is a region of:





47. The measure of a rock’s ability to resist deformation is:





48. Which factor strongly influences ductile deformation?





49. The Mohr circle is used to analyze:





50. Which type of stress shortens and thickens rocks?





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