For a compression member having the same effective length about any cross-sectional axis, the most preferred section from the point of view of strength is

Which one of the following statements is NOT correct regarding gross section yielding?

What is the approximate value of the tensile strength governed by yielding of the cross section of a roof truss diagonal 100 × 75 × 6 mm (f_y = 250 MPa) connected to a gusset plate by 4-mm welds as shown in figure? [Take partial safety factor as 1.10]

 

Nominal shear capacity of a bolt is 82335 N. What is the design capacity of the bolt, if slip resistance is designated at service load?

Two plates of dimensions 150 mm × 16 mm and 150 mm × 12 mm at their welding edges are joined by butt welding as shown in the figure.
What is the maximum tension that this single V-butt weld joint can transmit? The permissible tensile stress in the plates is 150 MPa.

A bolt designated as Hex bolt M 16 × 70 NL will have 

A bolt is subjected to shear force V and tension T. The capacity of the bolt in resting shear and tension respectively are V₀ and T₀. Which one of the following diagrams represents interaction relations?

Load on connection is not eccentric for

The permissible stresses in rivets under wind load conditions as per IS : 800 can be exceeded by about

For design of a roof truss, if the design wind velocity is 20 m/s, what is the design wind pressure?

Which one of the following stresses is independent of yield stress as a permissible stress for steel members?

A raft foundation is to be constructed on a sandy soil. The maximum differential settlement and limiting maximum settlement as recommended by Indian Standard code are:

As per Rankine's formula, the minimum depth of foundation in cohesionless soil is equal to

In a triaxial test, a sample of (c – Φ) soil fails making an angle of α° with the horizontal, the value of (Φ) is given by: 

A retaining wall 6m high supports a backfill with a surcharge angle of 10. The back of the wall is inclined to the vertical at a positive batter angle of 6°. If the angle of wall friction is 8°, the resultant active earth pressure will act at distance 2 m above base and inclined to the vertical at an angle of :

How many time the compactive energy is used in IS heavy compaction test in comparison to IS light compaction test?

Consider the following statements in relation to the data given in the table below :

Volume, cc		Weight, g
0.2	Air	0
0.3	Water	0.3
0.5	Solids	1.0

A soil sample is subjected to laboratory sieve analysis using a complete set of standard IS sieves. Out of 3 kg of soil used in the test, 1200 gm was retained on IS 600 micron sieve. 1500 gm was retained on IS 425 micron sieve and the remaining 300 gm was retained on IS 212 micron sieve. The uniformity coefficient for the soil is:

260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air bubbles was 1415 g and the weight of pycnometer filled with water alone was 1275 g. The moisture content in the soil is

In a standard penetration test, what is the weight of the hammer and the dropping height used as per IS 1231-1981 ?

The wall friction of the retaining wall

______ are formed by the decomposition of rocks, removal of bases and silica, and accumulation of iron oxide and aluminium oxide.

In ground water flow, the velocity with which a tracer would move is:

A saturated soil has compression index of 0.28, the void ratio at a stress 12 kN/m² is 2.05 and its permeability is 35 × 10^-3 mm/s. What is the change in void ratio if stress is increased to 21.6 kN/m² ? (take log₁₀ (1.8) as 0.255)

A soil formation through which only seepage is possible, being partly permeable and capable of giving insignificant yield, is classified as

If the percentage of soil passing 0.075 mm sieve is 65%, its liquid limit is 45% and its plastic limit is 20%, then as per IS soil classification system, the soil would be

A square footing of 2m sides rests on the surface of a homogeneous soil bed having the properties:

A soil has a discharge velocity of 6 × 10^–7 m/s, degree of saturation is 80% and a void ratio of 0.50. Its Seepage velocity is:

The capillary rise in a soil A with an effective size of 0.02 mm was 60 cm. Estimate the capillary rise in a similar soil B with an effective size of 0.04 mm.

Assertion (A) : Terzaghi's bearing capacity theory over-estimates the bearing capacity of footings.

Reason (R) : Terzaghi's theory neglects the shearing resistance of rupture surface in the soil above the foundation level.

In the schematic flownet shown in the given figure, the hydraulic potential at point A is

For non-homogeneous clays, the coefficient of permeability in (mm/s) should be ranges between

The following soils are compacted at the same compactive effort in the field. Which one of the following is the correct sequence in the increasing order of their maximum dry density?

Match List-I (Deposit) with List-II (Soil structure) and select the correct answer using the codes given below the lists :

Consistency is a term used to indicate

How many cubic metres of soil having void ratio of 0.7 can be made from 30 m³ of soil with void ratio of 1.2?

The ratio of dry unit weight to unit weight of water represents