The forces acting normally on the cross section of a bar shown in the given figure introduce_______________?
(A) Compressive stress
(B) Tensile stress
(C) Shear stress
(D) None of these
The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is_________________?
(A) wl3/3EI
(B) wl4/3EI
(C) wl4/8EI
(D) wl4/12EI
A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is________________?
(A) 4.0 mm
(B) 4.5 mm
(C) 5.0 mm
(D) 5.5 mm
A concentrated load P is supported by the free end of a quadrantal ring AB whose end B is fixed. The ratio of the vertical to horizontal deflections of the end A, is______________?
(A) /6
(B) /2
(C) /3
(D) /4
The assumption in the theory of bending of beams is_________________?
(A) Material is homogeneous
(B) Material is isotropic
(C) Young’s modulus is same in tension as well as in compression
(D) All the above
The ratio of the area of cross-section of a circular section to the area of its core, is_______________?
(A) 4
(B) 8
(C) 12
(D) 16
The force in CD of the truss shown in given figure, is________________?
(A) 3t compression
(B) 3t tension
(C) Zero
(D) 1.5t compression
An isolated load W is acting at a distance a from the left hand support, of a three hinged arch of span 2l and rise h hinged at the crown, the horizontal reaction at the support, is_________________?
(A) Wa/h
(B) Wa/2h
(C) 2W/ha
(D) 2h/Wa
A bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is_________________?
(A) WL/2AE
(B) WL/AE
(C) W²L/AE
(D) W²L/2AE
The greatest load which a spring can carry without getting permanently distorted, is called_________________?
(A) Stiffness
(B) Proof resilience
(C) Proof stress
(D) Proof load