Which one of the following conditions, both elastic and plastic methods of analysis of indeterminate structures have to satisfy?
Options
A. yield condition
B. mechanism condition
C. equilibrium
D. compatibility of deformation
Correct Answer
compatibility of deformation
GATE Exam Questions problems
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1. A vertical rod PQ of length L is fixed at its top end P and has a flange fixed to the bottom end Q. A weight W is dropped vertically from a height h(< L) on to the flange. The axial stress in the rod can be reduced by
Options
A. increasing the length of the rod
B. decreasing the length of the rod
C. decreasing the area of cross-section of the rod
D. increasing the modulus of elasticity of the material
5. The total active thrust on a vertical wall 3m high retaining a horizontal sand backfill (unit weight ?t = 20 kN/m3, angle of shearing resistance ?' = 30°) when the water table is at the bottom of the wall, will be:
6. At highway stretches where the required overtaking sight distance cannot be provided, it is necessary to incorporate in such sections the following :
Options
A. at least twice the stopping sight distance
B. half of the required overtaking sight distance
C. one third of the required overtaking sight distance
Correct Answer: at least twice the stopping sight distance
7. The plastic modulus of a section is 4.8 x 10-4 m3. The shape factor is 1.2. The plastic moment capacity of the section is 120 kN.m. The yield stress of the material is
10. The superelevation needed for a vehicle travelling at a speed of 60 kmph on a curve of radius 128 m on a surface with a coefficient of friction of 0.15 is :