Question

What is the density of a light timber?

(a) 5.5 kN/m^3

(b) Less than 2.5 kN/m^3

(c) 2.5 kN/m^3

(d) Less than 5.5 kN/m^3

This question was addressed to me in quiz.

My question is based upon Classification of Timber topic in portion Materials for Construction of Basic Civil Engineering

Answer 1

The correct choice is (d) Less than 5.5 kN/m^3

The explanation is: Density of light to very light timber is less than 5.5 kN/m^3.  Moderate timber has density between 5.5 and 7.5 kN/m^3 and heavy to very heavy timber has density greater than 7.5 kN/m^3.