Question

Which of the following is not true about cylindrical folds?

(a) They resemble sections of pipes

(b) They have very well defined axes of folds

(c) These well defined axes are repeated parallel to each other

(d) These well defined axes are not repeated parallel to each other

I have been asked this question in an online quiz.

My question is from Classification of Folds in section Folds and Folding of Engineering Geology

Answer 1

Correct answer is (d) These well defined axes are not repeated parallel to each other

The explanation: Folds in which repetition of axes parallel to themselves is not possible, are classified as non-cylindrical. The first three statements are true about the cylindrical folds.