Tue. Jun 25th, 2024

Movement of the Earth

  1. The inclination of rock beds with respect to the horizontal plane is known as

    Options:
    1. Axial plane
    2. Strike
    3. Dip
    4. Middle limb

    Option: C

  2. The direction of any horizontal line along a bedding plane is known as

    Options:
    1. Dip
    2. Axial plane
    3. Strike
    4. Middle limb

    Option: C

  3. What are the upfolded rock beds called?

    Options:
    1. Synclines
    2. Anticlines
    3. Folds
    4. Axial planes

    Option: B

  4. What is the type of anticline where the dip angle is less than 40°?

    Options:
    1. Symmetrical anticline
    2. Asymmetrical anticline
    3. Gentle anticline
    4. Steep anticline

    Option: C

  5. What are downfolded rock beds called?

    Options:
    1. Synclines
    2. Anticlines
    3. Folds
    4. Axial planes

    Option: A

  6. A folded structure that includes an extensive syncline having numerous minor anticlines and synclines is called

    Options:
    1. Synclinorium
    2. Anticlinorium
    3. Canoe structure
    4. Fan fold

    Option: A

  7. The type of folded structure in the regions of folded mountains where there are a series of minor anticlines and synclines within one extensive anticline is known as

    Options:
    1. Synclinorium
    2. Anticlinorium
    3. Canoe structure
    4. Fan fold

    Option: B

  8. When are anticlines called asymmetrical anticlines?

    Options:
    1. When the slopes of both the limbs or sides of an anticline are uniform.
    2. When the dip angle is less than 40°.
    3. When the dip angle ranges between 40° and 90°.
    4. When the slopes of both the limbs or sides of an anticline are unequal.

    Option: D

  9. What factors determine the nature of folds?

    Options:
    1. The nature of rocks, the nature and intensity of compressive forces, duration of the operation of compressive forces, et
    2. The type of minerals presents in the rocks
    3. The temperature and pressure at which the rocks were formed
    4. The amount of rainfall in the area where the rocks are located

    Option: A

  10. Which factor affects the nature and magnitude of the folding process?

    Options:
    1. The color of the rocks
    2. The age of the rocks
    3. The elasticity of the rocks
    4. The density of the rocks

    Option: C

  11. Which type of rocks are subjected to intense folding?

    Options:
    1. Hard and elastic rocks
    2. Soft and elastic rocks
    3. Hard and rigid rocks
    4. Soft and rigid rocks

    Option: B

  12. How does the difference in the intensity and magnitude of compressive forces affect folds?

    Options:
    1. It causes variations in the characteristics of folds.
    2. It has no effect on the characteristics of folds.
    3. It causes folds to become symmetrical.
    4. It causes folds to become asymmetrical.

    Option: A

  13. What is a symmetrical fold?

    Options:
    1. A fold in which both limbs incline at different angles.
    2. A fold in which both limbs are of equal inclination.
    3. A fold in which one limb is shorter than the other.
    4. A fold in which both limbs are steeply incline

    Option: B

  14. What is an asymmetrical fold?

    Options:
    1. A fold in which both limbs incline at different angles.
    2. A fold in which both limbs are of equal inclination.
    3. A fold in which one limb is shorter than the other.
    4. A fold in which both limbs are steeply incline

    Option: A

  15. What is a monoclinal fold?

    Options:
    1. A fold in which both limbs incline at different angles.
    2. A fold in which both limbs are of equal inclination.
    3. A fold in which one limb inclines moderately with regular slope while the other limb inclines steeply at right angle and the slope is almost vertical.
    4. A fold in which both limbs become parallel but not horizontal.

    Option: C

  16. What are isoclinal folds?

    Options:
    1. Folds in which both limbs are of equal inclination.
    2. Folds in which one limb inclines moderately with regular slope while the other limb inclines steeply at right angle and the slope is almost vertical.
    3. Folds in which both limbs become parallel but not horizontal.
    4. Folds in which both limbs become parallel as well as horizontal.

    Option: C

  17. What are recumbent folds?

    Options:
    1. Folds in which both limbs are of equal inclination.
    2. Folds in which both limbs become parallel but not horizontal.
    3. Folds in which both limbs become parallel as well as horizontal.
    4. Folds in which one limb of the fold is thrust upon another fold due to intense compressive forces.

    Option: C

  18. What are plunge folds?

    Options:
    1. Folds in which the limbs are thrust upon each other.
    2. Folds in which the axis of the fold becomes tilted and forms a plunge angle which is the angle between the axis and the horizontal plane.
    3. Folds resembling a fan.
    4. Folds with an obtuse angle between the limbs.

    Option: B

  19. What are open folds?

    Options:
    1. Folds in which both limbs become parallel as well as horizontal.
    2. Folds in which the angle between the two limbs of the fold is acute.
    3. Folds in which the angle between the two limbs of the fold is obtuse.
    4. Folds in which the axis of the fold becomes tilted and forms a plunge angle

    Option: C

  20. What causes the formation of nappes?

    Options:
    1. Vertical movement of rock beds
    2. Compressive force and horizontal movement
    3. Erosion by denudational processes
    4. Superimposition of one nappe upon another

    Option: B