In case of timber structures, the simple bending formula M = fz may be applied for________________?
(A) rectangular beams up to 300 mm depth
(B) all rectangular beams
(C) solid circular beams only
(D) all square cross-section beams
The shape factor of an isosceles triangle for bending about the axis parallel to the base is________________?
(A) 1.5
(B) 1.7
(C) 2.0
(D) 2.34
The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be___________________?
(A) 4.5 mm
(B) 6 mm
(C) 8 mm
(D) 10 mm
Lug angles_________________?
(A) are used to reduce the length of connection.
(B) are unequal angles.
(C) increases shear lag.
(D) all the above
The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of___________________?
(A) 75 t2/h
(B) 125 t3/h2
(C) 125 t2/h
(D) 175 t2/h
For rivets in tension with counter-sunk heads, the tensile value shall be____________________?
(A) reduced by 25 %
(B) reduced by 33.3%
(C) increased by 25 %
(D) increased by 33.3 %
In moment resistant connections, the moment resistance of riveted connection depends upon________________?
(A) shear in rivets
(B) compression in rivets
(C) tension in rivets
(D) strength of rivets in bearing
Pitch of tacking rivets, when double angles connected back to back and acting as tension members should not be more than_________________?
(A) 500 mm
(B) 600 mm
(C) 1000 mm
(D) 300 mm
The allowable shear stress in the web of mild steel beams decreases with__________________?
(A) decrease in h/t ratio
(B) increase in h/t ratio
(C) decrease in thickness
(D) increase in height where ‘h’ is height and t is thickness
Hudson’s formula gives the dead weight of a truss bridge as a function of_________________?
(A) bottom chord area
(B) top chord area
(C) effective span of bridge
(D) heaviest axle load of engine