Gate Exam General Ability


Two shafts 'A' and 'B' are made of same material. The shaft 'A' is solid and has diameter D. The shaft 'B' is hollow with outer diameter D and inner diameter D/2. The strength of hollow shaft in torsion is __________ as that of solid shaft.


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

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Gate Other Question

The extremeties of any diameter on Mohr's circle represent


A. principal stresses
B. normal stresses on planes at 45°
C. shear stresses on planes at 45°
D. normal and shear stresses on a plane


The bending moment of a cantilever beam of length l and carrying a gradually varying load from zero at free end and w per unit length at the fixed end is __________ at the fixed end.


A. wl/2
B. wl
C. wl2/2
D. wl2/6