Tongue plates are provided in a steel girder at
The upper flange
The lower flange
The upper end of the web
The upper and lower ends of the web
Correct Answer :
D. The upper and lower ends of the web
Related Questions
The deflection of beams may be decreased by
Increasing the depth of beam
Increasing the span
Decreasing the depth of beam
Increasing the width of beam
Rise of a Jack arch is kept about
1/2 to 1/3 of the span
1/3 to 1/4 of the span
1/4 to 1/8 of the span
1/8 to 1/12 of the span
The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as
1.8 L
L
1.1 L
1.5 L
Bending compressive and tensile stresses respectively are calculated based on
Net area and gross area
Gross area and net area
Net area in both cases
Gross area in both cases
A butt weld is specified by
Effective throat thickness
Plate thickness
Size of weld
Penetration thickness
Which of the following types of riveted joint is free from bending stresses?
Lap joint
Butt joint with single cover plate
Butt joint with double cover plates
None of the above
A 20 mm dia steel bar which is subjected to an axial tension of 2300 kg/cm2 produces a strain of 0.004 cm. If Young's modulus of steel is 2.1 × kg/cm2, the bar is
In the elastic range
In the plastic range
At yield point
None of these
In case of timber structures, the form factor for solid circular crosssection is taken as
1.18
1.414
1.67
1.81
The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is
150
180
250
350
Assuming the values of maximum deviation ΔP and ΔE to be 25% of the computed value of P and E respectively, the minimum value of the factor of safety is
1.00
0.67
1.67
2.67
The thickness t of a single flat lacing should not be less than
1/30th length between inner end rivets
1/40th length between inner end rivets
1/50th length between inner end rivets
1/60th length between inner end rivets
Pick up the correct statement from the following:
The minimum pitch should not be less than 2.5 times the gross diameter of the river
The minimum pitch should not be less than 12 times the gross diameter of the rivet
The maximum pitch should not exceed 10 times the thickness or 150 mm whichever is less in compression
All the above
The effective length L of a simply supported beam with ends restrained against torsion, and also the ends of compression flange partially restrained against lateral bending, is given by
L = span
L = 0.85 span
L = 0.75 span
L = 0.7 span
According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unit length, is taken as
0.000008
0.000010
0.000012
0.000014
For the steel member exposed to weather and accessible for repainting, the thickness of steel should not be less than (accepting the webs of Indian Standard rolled steel joists and channels).
4 mm
6 mm
8 mm
10 mm
Horizontal stiffener in a plate girder is provided to safeguard against
Shear buckling of web plate
Compression buckling of web plate
Yielding
All of the above
The effective length of a battened column is increased by
5 %
10 %
15 %
20 %
The Indian standard code which deals with steel structures, is
IS : 875
IS : 800
IS : 456
IS : 1893
According to I.S. : 800 - 1871, lacing bars resist transverse shear equal to
1.0% of the axial load
2.0% of the axial load
2.5% of the axial load
3.0% of the axial load
The maximum permissible span of asbestos cement sheets is
650 mm
810 mm
1250 mm
1680 mm
The heaviest I-section for same depth is
ISMB
ISLB
ISHB
ISWB
The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
1.5
1.7
2.0
2.34
To keep the intensity of bearing pressure between the column base and concrete compressive and to vary from zero to 2P/BL, the ratio of the moment M to the axial load P should be
L/2
L/3
L/4
L/6
If d is the distance between the flange angles of a plate girder, vertical stiffeners are provided at a distance not greater than
d but not less than 0.20 d
1.25 d but not less than 0.33 d
1.5 d but not less than 0.33 d
2.0 d but not less than 0.50 d
A web plate is called unstiffened if the ratio of clear depth to thickness is less than
35
50
65
85
The critical load for a column of length I hinged at both ends and having flexural rigidity El, is given by
Pc = π²EI/l²
Pc = πEI/l²
Pc = πEI/I²
None of these
The main type of butt joints, is a double cover
Shear riveted joint
Chain riveted joint
Zig-zag riveted joint
All the above
In plastic analysis, the shape factor for circular sections, is
1.5
1.6
1.697
None of these
A fillet weld may be termed as
Mitre weld
Concave weld
Convex weld
All the above
The area Ap of cover plates in one flange of a built up beam, is given by
Ap = Zreqr + Zbeam/h
Ap = Zreqr + Zbeam/A
Ap = Zreqr × Zbeam/h
Ap = Zreqr - Zbeam/h