Wednesday, September 7, 2016
S.B. Roll No. _____________
Duration : 4 Hrs.
1. Fill in the blanks
a. Quarrying of stones is the process of _________
b. The standard dimension of ideal brick as per BIS are _____
c. Tolerable absorption value of bricks is ______ to ________
d. Pure lime is made by ______
e. Final setting time of OPC should not be more than _______
f. Where sub soil is moist, we should use only _________ mortar.
g. Light weight cone is made by using __________ aggregate.
h. Exogenous trees are those in which growth takes place by addition of new cells in the form of _________ around the existing cells.
i. In paint , vehicle is the term indicating _______
j. Staking is the process of breaking lumps of lime into powder form by adding ________
Chose the correct one
k. Vehicle used for distempers is (oil/water)
l. Steel is (more/less) elastic than rubber.
m. Wood near the bark is (youngest/ oldest)
n. Standard sand is obtained from (Haryana/madras)
o. Roofing tiles are thinner /thicker than the floor tiles.
a. Enumerate factors affecting the durability of stones.
b. What is the composition of a good brick earth?
c. What is slaking of lime?
d. What are ingredient of Portland cement.
e. Differentiate between lime mortar and cement mortar.
f. What are uses of lime mortar?
g. What is water cement ratio?
h. What are defects in timber?
i. What are the ingredients of paints?
j. What are raw materials used in plastics manufacture
Note: Attempt any two question
3. How are ties classified? Describe the essential characteristics of some common type of roofing tiles. Illustrate your answer with neat sketches.
4. Explain in detail deterioration and preservation of timber
5. Write detailed account of functions, types and methods of applications of vanishes.
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