Biju Patnaik University of Technology 2008-2nd Sem B.Arch Architecture Building Material-II - Question Paper
BUILDING MATERIAL - II
Full Marks - 70
Time : 3 Hours
Answer Question No. 1 which is compulsory and any five from the rest.
The figures in the right-hand margin indicate marks.
1. (a) Answer the following questions : 2*5
(i) State the cause and effect of white rot in wood.
(ii) What is French Polish and where it is used ?
(iii) What role does red lead play in oil paint ?
(iv) State the causes of cracking of paint film on painted surface.
(v) State at least two uses of glass wool.
(b) Fill in the blank space selecting appropriate word given at the end of each sentence : 2*5
(i) Creosote is used for preservation of __(concrete/steel/timber)
(ii) Blast furnace slag is sometimes used
in manufacture of__(Bronze/
Cement.
(iii) _steel is used in construc
tion of prestressed concrete structural members. (High tensile/Mild)
(iv) Covering the upper surface of iron with
a thin layer of_is known as
galvanising. (tin / zinc)
(v) _glass is formed by embedding a wire matting at the centre of the glass sheet during casting. (foamed/frosted/wired)
2. (a) Sketch the cross section of the trunk of an
exogenous tree and show there in (i) Pith,
(ii) Sap wood, (iii) Cambium layer and (iv) Annual rings. 4
(b) What are burls in a tree ? State the causes of formation of such burls. 4
(c) List the causes of occurrence of wet rot in timber. 2
3. (a) What are veneers ? How veneers are used
in manufacture of ply wood ? 5
(b) Enumerate the process of kiln seasoning of timber. 5
4. (a) State the properties of high tensile steel.
2
(b) Name the raw materials required in manufacture of pig iron. 3
(c) Describe the uses of rolled steel sections in buildings. 5
5. (a) State the functions of vehicle in oil paint.
Name at least two materials generally used as vehicle in oil paint. 4
(b) Describe the process of repainting of old iron and steel works with enamel paint. 6
6. (a) Name the raw materials required in manu
facture of glass. 4
(b) State the characteristics of soda lime glass and plate glass. 4
(c) Suggest the locations in a building where
(i) frosted glass and (ii) glass wool need to be used. 2
7. (a) Enumerate the advantages of corrugated
iron sheets over corrugated asbestos cement sheets as roofing material. 8
(b) State the function of (i) bitumen washer and
(ii) hook bolt in corrugated galvanised iron sheet roofing. 2
8. (a) Explain the difference between Allahabad
tile and Mangalore tile. 5
(b) State the I.S.I. specification regarding effective length and width of Mangalore tiles.
2
(c) Describe the pattern of placement of pot tiles as roof covering. 3
PAR 1004 4 -C
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| Earning: Approval pending. |
