Gate Exam HR Interview


Two closely-coiled helical springs 'A' and 'B' of the same matenal, same number of turns and made from same wire are subjected to an axial load W. The mean diameter of spring 'A' is double the mean diameter of spring 'B'. The ratio of deflections in spring 'B' to spring 'A' will be


A. 1/8
B. 1/4
C. 2
D. 4

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Gate Other Question

A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be


A. tensile
B. compressive
C. shear
D. zero


Two shafts 'A' and 'B' have the same material. The shaft 'A' is solid of diameter 100 mm. The shaft 'B' is hollow with outer diameter 100 mm and inner diameter 50 mm. The torque transmitted by shaft 'B' is __________ as that of shaft 'A'.


A. 1/6
B. 1/8
C. 1/4
D. 15/16