Question

In the flattening test, the length of the tubing is taken _________ times of the diameter.

(a) 1

(b) 2

(c) 0.5

(d) 4

I have been asked this question in an interview for internship.

My enquiry is from Aircraft Materials in portion Testing Aircraft Materials of Aerospace Materials & Processes

Answer 1

The correct answer is (b) 2

The explanation: The flattening test is generally applied for tubing. It gives an idea about the ductility of the material. In this test, the length of the tube is taken as two times the diameter. It is flattened in a sideways direction and scrutinized to detect any defects.