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UPSC Civil Service Exam Questions - Engineering

Q1:

The defect which develops due to uncontrolled and non-uniform loss of moisture from wood is known as which one of the following ?

A Kont

B Shake

C Warping

D Cross grain

ANS:C - Warping

Warping is the distortion in the shape of timber arising due to uneven moisture loss either in kiln or during air drying.

Heavy weights are placed on the top of kiln charge to counter waring during kiln operation or kiln seasoning of timber.