Theory of Structures The point of contraflexure is the point where S.F. is zero M. changes sign M. is minimum M. is maximum S.F. is zero M. changes sign M. is minimum M. is maximum ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm², the tensile force developed at a temperature of 50°C, is 120 N/mm² 100 N/mm 2 150 N/mm² 80 N/mm² 120 N/mm² 100 N/mm 2 150 N/mm² 80 N/mm² ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is M/T 2M/ T T/M 2T/M M/T 2M/ T T/M 2T/M ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm², the bending strain energy stored in the bar, is 711 N mm 511 N mm 611 N mm 411 N mm 711 N mm 511 N mm 611 N mm 411 N mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is 1/3 1/2 1/8 1/4 1/3 1/2 1/8 1/4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures Total strain energy theory for the failure of a material at elastic limit, is known Haig’s theory St. Venant’s theory Rankine’s theory Guest’s or Trecas’ theory Haig’s theory St. Venant’s theory Rankine’s theory Guest’s or Trecas’ theory ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS