Folds And Folding(Engineering > Engineering Geology ) Questions and Answers
Question 1. Gentle folds have fold angle between ___________
10° to 90°
90° to 170°
170° to 180°
They don’t belong to this type
Explanation:-
Answer: Option C. -> 170° to 180° Answer: (c).170° to 180°
Question 2. Which is the class of fold with the degree of curvature greater on the outer arc compared to the inner arc?
Class 1
Class 2
Class 3
Class 4
Explanation:-
Answer: Option C. -> Class 3 Answer: (c).Class 3
Question 3. The folds caused due to the drag effect are ___________
Monocline
Homocline
Basins
Drag folds
Explanation:-
Answer: Option D. -> Drag folds Answer: (d).Drag folds
Question 4. The fold which is associated with the formation of mountains is ___________
Geanticline
Geosyncline
Homocline
Basin
Explanation:-
Answer: Option B. -> Geosyncline Answer: (b).Geosyncline
Question 5. The anticlines signifying larger bending are called ___________
Geranticlines
Geosynclines
Geanticlines
Geoantinclines
Explanation:-
Answer: Option C. -> Geanticlines Answer: (c).Geanticlines
Question 6. Which of the following about drag fold is not true?
The axes of the drag folds are parallel to those of the major folds
The drag folds plunge in the same manner as the major folds
The layers on the upper side of the drag folds slide away from the synclinal axis
The axes of the drag folds are not parallel to those of the major folds
Explanation:-
Answer: Option D. -> The axes of the drag folds are not parallel to those of the major folds Answer: (d).The axes of the drag folds are not parallel to those of the major folds
Question 7. A group of strata centrally centrally uplifted is ___________
Dome
Basin
Valley
Cleavage
Explanation:-
Answer: Option A. -> Dome Answer: (a).Dome
Question 8. What is Orogeny?
Flat land building activity
River forming activity
Rock breaking activity
Mountain building activity
Explanation:-
Answer: Option D. -> Mountain building activity Answer: (d).Mountain building activity
Question 9. The fold associated with magmatic activity is ___________
Anticlinorium
Synclinorium
Diapiric fold
Box fold
Explanation:-
Answer: Option C. -> Diapiric fold Answer: (c).Diapiric fold
Question 10. Pick the incorrect statement about basins.
Basins are the reverse of the domes
They are a group of strata that are centrally depressed
Group of strata that are centrally uplifted
Involved layers dip towards a common central point from all sides
Explanation:-
Answer: Option C. -> Group of strata that are centrally uplifted Answer: (c).Group of strata that are centrally uplifted