Structural Analysis If there are m unknown member forces, r unknown reaction components and j number of joints, then the degree of static indeterminacy of a pin-jointed plane frame is given by m + r – 2j m + r – 3j m – r + 2j m + r + 2j m + r – 2j m + r – 3j m – r + 2j m + r + 2j ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal(i) Of a stiffness matrix must be positive(ii) Of a stiffness matrix must be negative(iii) Of a flexibility matrix must be positive(iv) Of a flexibility matrix must be negativeThe correct answer is (i) and (iv) (ii) and (iv) (i) and (iii) (ii) and (iii) (i) and (iv) (ii) and (iv) (i) and (iii) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis The deformation of a spring produced by a unit load is called stiffness unit strain influence coefficient flexibility stiffness unit strain influence coefficient flexibility ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that the load position should be such that the section divides the load in the same ratio as it divides the span the head of the load reaches the section the tail of the load reaches the section the load position should be such that the section divides it equally on both sides the load position should be such that the section divides the load in the same ratio as it divides the span the head of the load reaches the section the tail of the load reaches the section the load position should be such that the section divides it equally on both sides ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis Muller Breslau’s principle for obtaining influence lines is applicable to i) trusses ii) statically determinate beams and frames iii) statically indeterminate structures, the material of which is elastic and follows Hooke’s law iv) any statically indeterminate structure The correct answer is (i) and (ii) only (i) (i), (ii) and (iii) (i), (ii) and (iv) (i) and (ii) only (i) (i), (ii) and (iii) (i), (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis Degree of kinematic indeterminacy of a pin-jointed plane frame is given by 3j – r 2j – r j – 2r 2j + r 3j – r 2j – r j – 2r 2j + r ANSWER DOWNLOAD EXAMIANS APP
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