Structural Analysis The principle of virtual work can be applied to elastic system by considering the virtual work of None of these Internal forces only Internal as well as external forces External forces only None of these Internal forces only Internal as well as external forces External forces only ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis For a single point load W moving on a symmetrical three hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is 0.5 L 0.211 L 0.234 L 0.25 L 0.5 L 0.211 L 0.234 L 0.25 L ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis The degree of static indeterminacy of a pin-jointed space frame is given by (where m is number of unknown member forces, r is unknown reaction components and j is number of joints) m + r + 3j m + r – 2j m + r – 3j 3m + r – 3j m + r + 3j m + r – 2j m + r – 3j 3m + r – 3j ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis A pin-jointed plane frame is unstable if (where m is number of members, r is reaction components and j is number of joints) m + r = 2j None of these (m + r)>2j (m + r)<2j m + r = 2j None of these (m + r)>2j (m + r)<2j 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), (ii) and (iii) (i) and (ii) (i), (ii) and (iv) only (i) (i), (ii) and (iii) (i) and (ii) (i), (ii) and (iv) only (i) ANSWER DOWNLOAD EXAMIANS APP
Structural Analysis When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would Change from tension to compression Always be compression Always be tension Change from compression to tension Change from tension to compression Always be compression Always be tension Change from compression to tension ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS