In a shaft, the shear stress is not directly proportional to_________________?
(A) Radius of the shaft
(B) Angle of twist
(C) Length of the shaft
(D) Modulus of rigidity
The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being EI, is______________?
(A) WL3/3EL
(B) WL3/8EL
(C) WL3/24EL
(D) WL3/48EL
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___________________?
(A) 411 N mm
(B) 511 N mm=
(C) 611 N mm
(D) 711 N mm
The equivalent length is of a column of length having both the ends fixed, is_________________?
(A) 2 L
(B) L
(C) L/2
(D) L
The equivalent length of a column of length L having one end fixed and the other end free, is______________?
(A) 2L
(B) L
(C) L/2
(D) L
a uniform circular bar of diameter d and length , which extends by an The deflection of amount under a tensile pull , when it carries the same load at its mid-span, is___________________?
(A) el/2d
(B) e²l/3d²
(C) el²/3d²
(D) e²l²/3d²
The radius of gyration of a rectangular section (depth D, width B) from a centroidal axis parallel to the width is__________________?
(A) D/2
(B) D
(C) D
(D) D
section modulus of a square section of side B and that of a circular section of The ratio of the diameter D, is___________________?
(A) 2 /15
(B) 3 /16
(C) 3 /8
(D) /16
The locus of reaction of a two hinged semi-circular arch, is_________________?
(A) Straight line
(B) Parabola
(C) Circle
(D) Hyperbola
A truss containing j joints and m members, will be a simple truss if_________________?
(A) m = 2j – 3
(B) j = 2m – 3
(C) m = 3j – 2
(D) j = 3m – 2