[amp_mcq option1=”Only (i)” option2=”(i) and (ii)” option3=”(ii) and (iii)” option4=”(i), (ii) and (iii)” correct=”option4″]<\/p>\n
The correct answer is D. (i), (ii) and (iii).<\/p>\n
Creep is a slow, permanent deformation of a material under stress. It is a common phenomenon in railway tracks, where it can lead to buckling, derailment, and other problems.<\/p>\n
The amount of creep that occurs in a railway track depends on a number of factors, including the type of rail, the temperature, the loading, and the curvature of the track.<\/p>\n
In general, creep is greater on curves than on tangent track. This is because the rails on a curve are under a greater bending stress, which causes them to deform more.<\/p>\n
Creep is also greater in new rails than in old rails. This is because new rails are not yet fully consolidated, and they are therefore more susceptible to deformation.<\/p>\n
Finally, creep is greater on steep gradients than on level track. This is because the rails on a steep gradient are under a greater tensile stress, which causes them to deform more.<\/p>\n
Therefore, all three statements are correct.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”Only (i)” option2=”(i) and (ii)” option3=”(ii) and (iii)” option4=”(i), (ii) and (iii)” correct=”option4″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[653],"tags":[],"class_list":["post-8044","post","type-post","status-publish","format-standard","hentry","category-railway-engineering","no-featured-image-padding"],"yoast_head":"\n