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Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called
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The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as
L is older than M and taller than N. O is younger than P, older than N and shorter than Q. R is older than S, younger than N, shorter than S and taller than Q. S is older than L, M, O, P, Q, R and S is necessarily false?
The compressive strength of cast iron is __________ that of its tensile strength.
The tensile strength of ductile materials is _________ its compressive strength.
The approximate value of the ratio between direct tensile strength and flexural strength is
ভঙ্গুর পদার্থের compressive strength, tensile strength হতে -
The steel used for the manufacture of rails, is