The range of economical spacing of trusses varies from________________?
(A) L/3 to L/5
(B) L/4to2L/5
(C) L/3 to L/2
(D) 2L/5 to 3L/5 where L is span
Gantry girders are designed to resist_________________?
(A) lateral loads
(B) longitudinal loads and vertical loads
(C) lateral, longitudinal and vertical loads
(D) lateral and longitudinal loads
Bearing stiffener in a plate girder is used to__________________?
(A) transfer the load from the top flange to the bottom one
(B) prevent buckling of web
(C) decrease the effective depth of web
(D) prevent excessive deflection
The least dimension in case of a circular column of diameter D is taken as_______________?
(A) 0.5 D
(B) 0.68 D
(C) 0.88 D
(D) D
The bracing provided in the plane of end posts is called__________________?
(A) sway bracing
(B) portal bracing
(C) top lateral bracing
(D) bottom lateral bracing
The sway bracing is designed to transfer____________________?
(A) 2Vi % of the top panel wind load to bottom bracing
(B) 10% of the top panel wind load to bottom bracing
(C) 25% of the top panel wind load to bottom bracing
(D) 50% of the top panel wind load to bottom bracing
If the floor is supported at or near the bottom but top chords of a bridge are not braced, then the bridge is called________________?
(A) deck type
(B) through type
(C) half through type
(D) double deck type
Maximum pitch of rivets, used in steel stacks, is limited to_______________?
(A) 6t
(B) 101
(C) 121
(D) 161 where t is thickness of thinner plate being connected
The bracing between two columns of a steel tank will be designed to resist_________________?
(A) horizontal shear due to wind or earthquake only
(B) horizontal, shear due to wind or earthquake + 2.5% of column loads
(C) column loads + 2.5% of horizontal shear due to wind or earthquake
(D) column loads + full horizontal shear due to wind or earthquake
Which of the following sections should preferably be used at places where torsion occurs ?
(A) angle section
(B) channel section
(C) box type section
(D) any of the above