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Q. What do you mean by Ozone Test?
Some research and studies determined that the ozone test was unnecessary as this affects only the surface layer. In un-stretched rubber, ozone degradation is confined to a thin surface layer, typically 0.5 µ. Ozone cracks develop at right angles to the tensile strain and they degrade rubber's tensile strength and may also initiate fatigue growth that ultimately leads to failure of rubber products. Because cracks only occur in regions where tensile stresses are induced, they are unable to penetrate very far into objects, which are under compression. In bearings, the growth of cracks ceases close to the surface because cracks quickly encounter compressive rather than tensile stresses. Therefore, it has been contended that ozone damage is a serious concern in thin-walled products, but not in those bulky products like bearings. Contrarily there is a harmful effect because the manufacturers use anti ozanant waxes to protect against ozone attack. This viscous layer of wax is responsible for a significant number of serious slipping problems where the bearings 'walked-out' of the support area.
The diameter of an electric cable, say X, is assumed to be continous random variable with pdf;f(x)=6x(1-x), 0 b}.
At a large port facility near New York City tractor-trailer trucks are lined-up in long queues as their drivers wait to have their containers inspected and documents processed. As
Q. Show the Functions of diaphragm walls? The functions of diaphragm walls are as follows: (i) It is designed to maintain soils during the construction of underground
why lacing is better than battens?
give a short description about water supply system
Q. Which are the Colloidal Impurities in water? The finely divided particles of soil such that their small quantities are not Visible to the naked eye are
Q. Residual stresses in steel after welding? Considerable residual stresses are persuaded in connecting steel members after welding operation. Local temperature of steel where
Explain about reciprocal ranging
#questiondefination of structure ..
describe details about stairs and its type also draw sketch?
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