JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II BUILDING MATERIALS, CONSTRUCTION AND PLANNING Previous Question Paper (December - 2018 - R16)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
PART A
Write the Physical classification of rocks with examples.
Answer
Rocks are physically classified into three types based on their structure: Stratified rocks (e.g., Sandstone, Limestone), which show distinct layers; Unstratified rocks (e.g., Granite, Trap), which are crystalline or granular and lack layers; and Foliated rocks (e.g., Slate, Schist), which have a tendency to split along definite planes.
Why Bricks are to be wetted before use?
Answer
Bricks are wetted before use to prevent them from absorbing moisture from the mortar, which would otherwise cause the mortar to dry prematurely and lose its strength. Additionally, wetting removes dust from the surface, ensuring a better bond between the brick and the mortar, and helps in achieving uniform setting of the masonry.
What are various types of cement?
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State the field tests on cement.
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Compare the flat roofs with sloped roofs.
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What are the Fire Hazards?
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Discuss the general principles in Brick Masonry Construction.
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What is meant by underpinning?
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What do you mean by Byelaws?
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Write short notes on floor area ratio.
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PART B
With the help of a sketch, explain the working of Hoffman’s kiln for the burning of bricks.
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Explain different types of shakes in timber.
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Explain defects due to seasoning.
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Explain the procedure for finding initial setting time of cement with neat sketch.
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What are the different types of admixtures used in concrete and explain any two of them.
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Explain with sketches, various basic forms of pitched roofs.
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What do you mean by Air- conditioning? Explain about any one method.
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What are the various types of Ashlar masonry? Explain any two.
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Write short notes on: (a) Double scaffolding (b) Cantilever scaffolding.
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Explain Byelaws objectives and underlying principles in detail.
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How Floor Area Ratio (FAR) is related to height of the building. Explain.
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