The distance between e.g. of compression and e.g. of tension flanges of a plate girder, is known as
Overall depth
Clear depth
Effective depth
None of these
Correct Answer :
C. Effective depth
Related Questions
If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be
40 mm
60 mm
80 mm
100 mm
Design of a riveted joint is based on the assumption:
Bending stress in rivets is accounted for
Riveted hole is assumed to be completely filled by the rivet
Stress in the plate in not uniform
Friction between plates is taken into account
If L is the overall length of a combined footing having A as its area, d being the distance between the centre of gravity of the base and centre of the base, the larger width b is
(A/L) + (3Ad/L²)
(A/L) + (6Ad/L²)
(A/L) - (6Ad/L²)
(A/L) - (3Ad/L²)
The internal pressure coefficient on walls for buildings with large permeability is taken as
± 0.2
±0.5
± 0.7
0
The allowable tensile stress in structural mild steel plates for steel tank is assumed as
95.0 MPa on net area
105.5 MPa on net area
105.5 MPa on gross area
150.0 MPa on gross area
The greatest gauge of long rivets should not exceed (where d is the diameter of the holes).
2 d
4 d
6 d
8 d
In the cross-section of a weld, throat is the
Minimum dimension
Average dimension
Maximum dimension
None of the above
The overlap of batten plates with the main members in welded connections should be more than
3 t
4 t
6 t
8 t Where t = thickness of the batten plate
A tension member, if subjected to possible reversal of stress due to wind, the slenderness ratio of the member should not exceed
180
200
300
350
For rivets in tension with countersunk heads, the tensile value shall be
Reduced by 25 %
Reduced by 33.3%
Increased by 25 %
Increased by 33.3 %
The mechanism method and the statical method give
Lower and upper bounds respectively on the strength of structure
Upper and lower bounds respectively on the strength of structure
Lower bound on the strength of structure
Upper bound on the strength of structure
The ratio of the span L of the filler joists to the depth d from the underside of the joist to the top of the structural concrete, should not exceed
60
45
35
25
Bearing stiffeners are provided at (i) The supports (ii) The mid span (iii) The point of application of concentrated loads The correct answer is
Only (i)
Both (i) and (ii)
Both (i) and (iii)
(i), (ii) and (iii)
In factory buildings, the horizontal beams spanning between the wall columns supporting a wall covering, are called
Stringers
Trimmers
Girts
Lintels
To the calculated area of cover plates of a built-up beam, an allowance for rivet holes to be added, is
10 %
13 %
15 %
18 %
When the length of a tension member is too long
A wire rope is used
A rod is used
A bar is used
A single angle is used
The safe working pressure for a spherical vessel 1.5 m diameter and having 1.5 cm thick wall not to exceed tensile stress 50kg/cm2, is
16 kg/cm2
18 kg/cm2
20 kg/cm2
22 kg/cm2
The ratio of shearing stress to shearing strain within elastic limit, is known as
Modulus of elasticity
Shear modulus of elasticity
Bulk modulus of elasticity
Tangent modulus of elasticity
The portal bracing in a truss bridge is used to
Transfer load from top of end posts to bearings
Keep the rectangular shape of the bridge cross-section
Stiffen the structure laterally
Prevent the sides-way buckling of top chord
A beam is defined as a structural member subjected to
Axial loading
Transverse loading
Axial and transverse loading
None of these
The cross-section of a standard fillet is a triangle whose base angles are
45° and 45°
30° and 60°
40° and 50°
20° and 70°
The capacity of the smallest pressed steel tank is
1000 litre
1650 litre
1950 litre
2450 litre
The main type of butt joints, is a double cover
Shear riveted joint
Chain riveted joint
Zig-zag riveted joint
All the above
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
Effective length of a column effectively held in position and restrained in direction at both ends, is
L
0.67 L
0.85 L
1.5 L
A simply supported beam carrying a central load, will be safe in deflection if the ratio of its span to depth, is
< 19
< 24
> 19
> 24
The use of tie plates in laced columns is
Prohibited
Not prohibited
Permitted at start and end of lacing system only
Permitted between two parts of the lacing
Steel tanks are mainly designed for
Weight of tank
Wind pressure
Water pressure
Earthquake forces
For a standard 45° fillet, the ratio of size of fillet to throat thickness is
1 : 1
1 : √2
√2 : 1
2 : 1
The maximum permissible span of asbestos cement sheets is
650 mm
810 mm
1250 mm
1680 mm