a) 25%b) 30%c) 35%d) 40% Answer: dExplanation: Efficiency = (strength of bolt per pitch length/ ...
View QuestionFind the number of HSFG bolts of diameter 20mm, grade 88 for connection of member carrying factored tensile load of 200kN when no slip is permitted.
a) 5 b) 4 c) 3 d) 2 Answer: b Explanation: Fo=0.7fubAnb=0.7x800x0.78x(π/4)x202x10-3=137.22 kN Assume μf=0.5, ne=1, kh=1 Slip resistance ...
View QuestionCalculate bearing strength of 20mm diameter bolt of grade 4.6 for joining main plates of 10mm thick using cover plate of 8mm thick using single cover butt joint.
a) 70.26 kN b) 109.82 kN c) 50.18 kN d) 29.56 kN Answer: c Explanation: diameter of bolt = ...
View QuestionWhat is the value of kb in nominal bearing strength for a bolt of 20mm diameter of grade 4.6?
a) 0.5 b) 1 c) 0.97 d) 2 Answer: a Explanation: diameter of bolt = 20mm, diameter of hole ...
View QuestionCalculate strength in shear of 16mm diameter of bolt of grade 4.6 for lap joint
a) 50 kN b) 40 kN c) 29 kN d) 59 kN Answer: c Explanation: Bolts will be in ...
View QuestionThe maximum number of bolts of diameter 25mm that can be accomodated in one row in 200mm wide flat are:
a) 2b) 3c) 4d) 5 Answer: bExplanation: Minimum end distance = 2.5×25 = 62.5mmNumber of ...
View QuestionShear Capacity of HSFG bolts is
a) μfnekhFo b) μfnekhFoγmf c) μfnekhoγmf d) μfnekhFo/γmf Answer: d Explanation: Shear Capacity of HSFG bolts is μfnekhFo/γmf, where ...
View QuestionWhich of the following equation is correct for bolt subjected to combined shear and tension?
a) (Vsb/Vdb)2 + (Tsb/Tdb)2 ≤ 1 b) (Vsb/Vdb)2 + (Tsb/Tdb)2 ≥ 1 c) (Vsb/Vdb) + (Tsb/Tdb) ≤ 1 d) (Vsb/Vdb) + (Tsb/Tdb) ...
View QuestionWhat is the difference between end and edge distance?
a) Edge distance is measured parallel to direction of stress, while end distance is measured perpendicular to direction ...
View QuestionIn case of staggered pitch, pitch may be increased by ______
a) 50%b) 20%c) 100%d) 30% Answer: aExplanation: Spacing between centres of fasteners may be increased ...
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