Design of Steel Structures Quiz | Design of Steel Structures Multiple Choice Questions and Answers
Questions
1
If the thickness of plate to be connected by a rivet is 16 mm, then suitable size of rivet as per Unwin’s formula will be
Answer: 24 mm
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3
The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is
Answer: 1.5 mm
4
Which of the following types of riveted joint is free from bending stresses ?
Answer: butt joint with double cover plates
5
When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which
where, Fa is the load shared by each rivet due to axial load and Fm is the shearing load due to moment in any rivet.
Answer: gives the minimum angle between the two forces Fa and Fm
6
When the axis of load lies in the plane of rivet group, then the rivets are subjected to
Answer: only shear stresses
7
In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate
Answer: 50% by direct bearing and 50% through fastenings
8
If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as
Answer: 160 mm
9
Bending compressive and tensile stresses respectively are calculated based on
Answer: gross area and net area
11
For a standard 45° fillet, the ratio of size of fillet to throat thickness is
Answer: V2 : 1
12
The effective length of a fillet weld should not be less than
Answer: four times the weld size
14
When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
Answer: high strength bolt
15
Diameter of a bolt hole is usually taken as
Answer: nominal diameter + 1.5 mm
17
Select the correct statement
Answer: Bolts are used as a temporary fastenings whereas rivets are used as permanent fastenings.
18
Efficiency of a riveted joint, having the minimum pitch as per IS : 800, is
Answer: 60%
19
Minimum pitch of the rivets shall not be less than
where d is gross diameter of rivet
Answer: 2.5 d
20
By providing sufficient edge distance, which of the following failures of riveted joint can be avoided ?
Answer: shear failure of the plate
