Theory of Structures For calculating the allowable stress of long columns σ0 = σy/n [1 - a (1/r)²]is the empirical formula, known as Perry Parabolic formula Straight line formula Rankine Perry Parabolic formula Straight line formula Rankine ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following: Q = S + F Q = S × F Q = F – S Q = S – F Q = S + F Q = S × F Q = F – S Q = S – F ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The load on a spring per unit deflection, is called Stiffness Proof resilience Proof load Proof stress Stiffness Proof resilience Proof load Proof stress ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures A truss containing j joints and m members, will be a simple truss if m = 3j – 2 j = 2m – 3 j = 3m – 2 m = 2j – 3 m = 3j – 2 j = 2m – 3 j = 3m – 2 m = 2j – 3 ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The equivalent length is of a column of length having both the ends fixed, is L 2 L L/2 l L 2 L L/2 l ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If Esteel = 2 × 106 kg/cm², the side of the rod, is 2 cm 1.5 cm 2.5 cm 1 cm 2 cm 1.5 cm 2.5 cm 1 cm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS