Related Questions
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4
Compression force in two end posts, the pin of a rocker bearing in a bridge is designed for
D. Bearing, shear and bending
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4
Allowable working stress corresponding to the slenderness ratio of double angles placed back to back and connected to one side of a gusset plate, is reduced to
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4
The forces acting on the web splice of a plate girder are
B. Shear and axial forces
C. Shear and bending forces
D. Axial and bending forces
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4
When the ratio of the moment M to axial load P is greater than L/6, the resultant of the compressive bearing pressure which acts at a distance Y from one side, is given by
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4
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
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4
The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as
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4
Stiffeners are used in a plate girder
A. To reduce the compressive stress
B. To reduce the shear stress
C. To take the bearing stress
D. To avoid bulking of web plate
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4
Select the correct statement
A. Material cost of a rivet is higher than that of a bolt
B. Tensile strength of a bolt is lesser than that of a rivet
C. Bolts are used as a temporary fastening whereas rivets are used as permanent fastenings
D. Riveting is less noisy than bolting
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4
Pick up the correct statement from the following:
A. When the gauge distance is larger than the pitch, the failure of the section may occur in a zig-zag line
B. When the gauge distance is smaller than the pitch, the failure of the section may occur in a straight right angle section through the centre of rivet holes
C. When the gauge distance and pitch are both equal, the failure to the section becomes more likely as the diameter of the holes increases
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4
The risk coefficient k, depends on
A. Mean probable design life of structures
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4
If the pitch is 6 cm and rivet value is 4 tonnes, the number of rivets required for a riveted connection carrying an eccentric load of 15 tonnes at a distance of 30 cm from the centre line, is
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4
Length of an outstanding leg of a vertical stiffener, may be taken equal to
A. 1/10th of clear depth of the girder plus 15 mm
B. 1/20th of clear depth of the girder plus 20 mm
C. 1/25th of clear depth of the girder plus 25 mm
D. 1/30th of clear depth of the girder plus 50 mm
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4
Water pressure in a 80 cm water main is 10 kg/cm2. The minimum thickness of the metal required for the water main, not to be stressed more than 200 kg/cm2, is
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4
Hudson's formula gives the dead weight of a truss bridge as a function of
C. Effective span of bridge
D. Heaviest axle load of engine
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4
The distance between e.g. of compression and e.g. of tension flanges of a plate girder, is known as
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4
For a steel member of slenderness ratio 350, the allowable stress is 76 kg/cm2 if it is
A. HTW grade of thickness exceeding 32 mm
B. HT grade of thickness exceeding 45 mm
C. HT grade of thickness not exceeding 45 mm
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4
For a rectangular section, the ratio of the maximum and average shear stresses, is
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4
A single angle in tension is connected by one leg only. If the areas of connecting and outstanding legs are respectively a and b, net effective area of the angle, is
A. a - [b/{1 + 0.35 (b/a)}]
B. a + [b/{1 + 0.35 (b/a)}]
C. a - [b/{1 + 0.2 (b/a)}]
D. a + [b/{1 + 0.2 (b/a)}]
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4
As per IS : 800, for compression flange, the outstand of flange plates should not exceed
D. 25 t Where t = thickness of thinnest flange plate
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Pitch of tacking rivets, when double angles connected back to back and acting as tension members should not be more than
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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
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When a tension member consists of two channel sections, the allowance for rivet hole is made for two holes from
C. Each web or one hole from each flange whichever is more
D. Each web or one hole from each flange whichever is less
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4
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
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4
Minimum spacing of vertical stiffeners is limited to
D. 2d/3 Where d is the distance between flange angles
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4
For double angles carrying tension, placed back to back and connected to either side of the gusset plate, the sectional area of the section, is equal to cross sectional area of
B. The section plus area of rivet holes
C. The section minus area of rivet holes
D. The section multiplied by the area of the rivet hole
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4
IS : 800 - 1971 recommends that in a splice plate the number of rivets carrying calculated shear stress through a packing greater than 6 mm thick, is to be increased by 2.5% for every
A. 1.00 mm thickness of packing
B. 1.50 mm thickness of packing
C. 2.0 mm thickness of packing
D. 2.50 mm thickness of packing
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4
The diameter of a bolt hole is taken as the nominal diameter of the bolt plus
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4
Bearing stiffeners are provided at (i) The supports (ii) The mid span (iii) The point of application of concentrated loads The correct answer is
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4
For a column of height L fixed in position and direction both at its top and bottom, its effective length, is
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4
With a percentage increase of carbon in steel, decreases its