Building Materials, Third Edition

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1. Consider the following statements :
   Conifers
   (i) are endogenous trees
   (ii) grow outwards
   (iii) have pointed needle like leaves
   Of the above statements
   (a) (i), (ii) are correct (b) (ii), (iii) are correct
   (c) (i), (ii) and (iii) are correct (d) (i), (iii) are correct


2. The age of trees can be predicted by
   (a) length of medulary rays (b) counting number of rings
   (c) by measuring the diameter of pith (d) by the thickness of bark


3. Lumber
   (a) implies a living tree (b) is a part of felled tree
   (c) is log of timber sawn into pieces of desired shape
   (d) is used to denote standing timber.


4. Match List-I with List-II and select the correct answer using the codes given below the
   lists :
   List-I List-II
   A. The innermost part of 1. Transverse septa
   core of the stem of a tree (Medullary rays)
   B. The vascular tissue which 2. Annual rings
   encloses the pith
   C. A cellular tissue and 3. The cambium layer
   woody fibre arranged
   in distinct concentric circle
   D. The thin layer below the 4. The outermost cover or skin
   bark not converted into of the stem
   sap wood as yet


5. Medulla (pith)
   Codes:
   (a)ABCD (b)ABCD
   2534 5123
   (c)ABCD (d)ABCD
   4321 5143


6. Match List-I with List-II and select the correct answer using the codes given below the
   lists :
   List-I List-II
   A. Deciduous 1. Soft wood
   B. Conifer 2. Hard wood
   C. Endogenous 3. Eucalyptus
   D. Exogenous 4. Bamboo