A close-coiled helical spring hasmm mean diameter and is mada ofturns tomm diameter steel wire. The spring carries an axial load ofN Modulus of rigidity isGPa. The shearing stress developed in the spring in N/mm² is

Consider the following statements related to Los Angeles Abrasion test on aggregates :
It evaluates hardness of source - rock
It has a coefficient of variation of aboutpercent
Which of the statements given above is/are correct ?

For Froude number of a hydraulic jump is 5.The jump can be classified as a/an:

The length of a transition curve for a circular curve of radiusm and for a design speed ofm/s, when the rate of change of centrifugal acceleration is 0.3 m/s³ is

Consider the following statements :
I: To insert amm nominal diameter rivet, 29.5 mm rivet hole is made.
II: Provision is made to allow temperature expansion of the bolt.

Which of the following pairs regarding the defects in timber are correctly matched ?
Upsets....due to overmaturity and unventilated star age of wood.
Fwciness....due to crushing of fibres running transversel.
Star shakes....radial splits widest at the circumference and diminishing towards the centre.
Heart shakes....cracks widest at the centre and diminishing towards the outer circumference.
Select the correct answer using the codes given below.

Consider the following statements :
Masonry in rich cement mortar though having good strength with high shrinkage is much liable for surface cracks.
Lime mortar possesses poor workability and poor water retentivity and also suffers high shrinkage.
Masonry in lime mortar has better resistance against rain penetration and is less liable to crack when compared to masonry in cement mortar.
Which of these statements are correct ?

The most important purpose of frog in a brick is to :

Which one of the following is the correct statement ? A particle in simple harmonic motion while passing through the mean position will have

Surkhi is added to lime mortar to

A beam carries a uniformly distributed load throughout its length. In which of the following configurations will the strain energy be maximum ?

A flownet for an earth dam on impervious foundation consists of 4 flow channels andequipotential drops. The full reservoir level ism above the downstream horizontal filter. Given that horizontal permeability is 9 x 10^-6 m/s and vertical permeability is 1 x 10^-6 m/s, the quantity of seepage through the dam will be

Which one of the following is the best method for the stabilization of the clayey subgrade in water-logged area ?

Which one of the following statements is correct ?
Linear arch is one which represents :

For complete hydration of cement the W/C ratio needed is

Consider the following statements: An aqueduct is a cross drainage work in which
(a) a canal is carried over the drainage channel
(b) a drainage channel is carried over the canal
(c) both drainage channel and canal are at the same level.
Which of the statements given above is/are correct ?

The basic action involved in sheep foot rolling is

If R is the radius of the circular railway curve in metres and D is the degree of the curve, then which one of the following is the expression for D ?

Consider the following statements pertaining to plane table survey :
Two-point problem is solved by mechanical method.
Three-point problem is solved by Bessel's method.
In two point problem, auxiliary station is required.
Of these statements :

Consider the following statements :
A : For beams, I-sections are more economical than rectangular section.
R : Most of the material is concentrated away from the centroid.
Of these statements :

A water jet 0.m² in area has a velocity ofm/s. If the jet impinges normally on a plate which is moving at a velocity 5 m/s in the direction of the jet, what is the force on the plate due to this impact ? (Density =kg/m³)

Gross flange area for a riveted plate girder is to be designed considering net area asof its gross area. Consider width of the flange asmm while web plate asmm xmm. The girder is to resist a maxi-mum BM ofkNm. Maximum allowable bending stress in tension isMPa. Gross flange area is

What are the phenomena of global warming and acid rain formation attributed to ?

The following readings were taken with a Dumpy level and a 4 m levelling staff on a continuously sloping ground atm intervals : 0.m, 1.m, 1.m, 2.m, 2.m, 3.m, 1.m. The R.L. of the fourth point was calculated to be 79.m. The R.L. of the point that was read 0.m is

The Trap used for a water closet is called

If carbon monoxide is released at the rate of 0.m³/min from a gasolene engine andppm is the threshold limit for an 8-hour exposure, the quantity of air which dilutes the contaminant to a safe level will be

The two-peg test in the adjustment of a dumpy level employs the principle that

A hollow circular column at internal diameter 'd' and external diameter '1.5 d' is subjected to compressive load. The maximum distance of the point of application of load from the centre for no tension is

The shear modulus of a material is half of its Young's modulus. What is the value of its Poisson's ratio ?

A steel rod ofirim diameter has been used as a tie in a bracing system, but may subject to possible reversal of stress due to the wind. What is the maximum permitted length of the member ?

Which one of the following statements is correct ?
The portal method of structural analysis is generally suitable for

The runway length after correcting for elevation and temperature ism. If the effective gradient on runway is 0.5 per cent, then the revised runway length will be

Two closed-coil springs of stiffness s and 2s are arranged in series in one case and in parallel in the other case. The ratio of stiffness of springs connected in series to parallel is

Length of line measured with am chain was found to be 634.4 m. If the chain was 5 cm too long, throughout the measurement, then the true length of the line is

The phenomenon of reflection cracking is observed in which of the following ?

Consider the following statements :
Dock is a marine structure for mooring up vessels, loading and unloading of passengers and/or cargo.
Dry dock is generally used only for carrying out repairs, inspections and painting.
Wet dock is an enclosed or partially enclosed basin provided with locks and entrance gate to keep the water level at a fairly constant level.
Which of the statements given above are correct ?

Given below are methods of compaction :
Vibration technique
Flooding the soil
Sheeps-foot roller
Tandem roller
Heavy weights dropped from a height.
The methods suitable for cohesionless soils include

A wooden plank (sp. gr. 0.1 m x 1 m x 0.5 m floats in water with 1.5 kN load on it with 1 m x 1 m surface horizontal. The depth of plank lying below water surface shall be

When the degree of consolidation is 50%, the time factor is about

Uniformity coefficient of filter sand is given by :

The following observation relate to designing of laced column :
Single lacing systems on opposite planes shall preferably be in the same direction so that one is the shadow of the other.
Lacing bar should only be a flat.
The slenderness ratio of the lacing bars for compression shall not exceed 180.
Laced compression members are to be provided with tie plates of ends.
Of these observations :

Consider the following statements :
In the laboratory consolidation test, initial compression is the result of displacement of soil particles.
Primary consolidation is due to dissipation of pore water pressure.
Secondary compression starts after complete dissipation of pore water pressure.
Primary consolidation and secondary compression occur simultaneously.
Which of the statements given above are correct ?

For a sleeper density of (n + 5), the number of sleepers required for constructing a broad gauge (BG) railway track of lengthm is

Consider the following factors :
Provision of a suitable slope to the top of the sill.
Proper throating of the sill to throw off the water outside.
Giving a projection of not less thanmm to the sill.
Providing damp-proof course below the sill to check the entry of moisture inside the main wall.
Those considered while constructing a brick sill would include

Undisturbed soil samples are required for conducting

The shear modulus of a material is half of its Young's modulus. What is the value of its Poisson's ratio ?

Consider the following statements :
Alum coagulation decreases the alkalinity of water.
Alum coagulation increases permanent hardness of water.
Alum coagulation decreases pH of water.
Alum coagulation produces aluminium hydroxide flocks in the flocculation process.
Which of the statements given above are correct ?

A water jet 0.m² in area has a velocity ofm/s. If the jet impinges normally on a plate which is moving at a velocity 5 m/s in the direction of the jet, what is the force on the plate due to this impact ? (Density =kg/m³)

The following observation relate to designing of laced column :
Single lacing systems on opposite planes shall preferably be in the same direction so that one is the shadow of the other.
Lacing bar should only be a flat.
The slenderness ratio of the lacing bars for compression shall not exceed 180.
Laced compression members are to be provided with tie plates of ends.
Of these observations :

The total number, of independent equations that form the Lacey's regime theory is