Question

Number of corrugations in one big-six type A.C. sheet is _________

(a) Three and a half

(b) Five and a half

(c) Seven and a half

(d) Nine and a half

I have been asked this question in an interview.

This is a very interesting question from Roof Coverings for Pitched Roofs topic in portion Roofing Materials of Construction & Building Materials

Answer 1

The correct answer is (c) Seven and a half

Best explanation: Number of corrugations in one big-six type A.C. sheet is seven and a half. The overall depth of big six-type A.C. sheets is 55 mm. While the standard corrugated sheets have ten and a half corrugations per sheet.