In a standard penetration test (SPT)for soil, the SPT numberis
ISRO Scientist or Engineer Civil 2019
For the following questions answer them individually
In the Indian standard classification system of soils,
Piles used to resist uplift forces are known.as
The cyclic plate loadtest in £oils>can be adopted to determine the
Expansion joint in concreteis a type of
The measurement of workability for tremic concrete will be appropriate by determination of its
When the depth of web in a R.C.C T beam exceeds ............ side Tage reinforcement shall be provided.
In the case of a continuous beam, if the width of thesupportyis Jess than $$\frac{1}{12}^{th}$$ of the clearspan, then the effective span shall be calculated as
In an under reinforced. R.C.C-beam section , the actual neutral axis falls —-——————— the critical neutral axisof balancedsection
The fineness modulus of aggregates approximatel
The minimum content of cement specified by 1S 456 -2000 for adoption in concrete work with normal weight aggregate of 20 mm nominal maximum size 15
In normal circumstances where ambient temperature does notfall balow 1s C, for a properly cured reinforced concrete slabs spanning up to 4.5 metre®span cast’using ordinary
Portland cement, the props provided can be removed only after a minimum period of
The representative fraction $$\frac{1}{5000}$$ means that the Seale is
In the plastic analysis,‘the ratio of plastic moment $$M_{p}$$to the yield moment $$M_{y}$$ is called
Two-parallel railway lines are to be connected by a reverse curve, each section of the curve having the sameradius.If the centre line are 8 metre apart and maximumdistance between the-tangent points is 32 metre, the maximum allowable radius of the curves will be
The twosteel long columns P of Length L and Q of length 2L have the same cross Section, strength charecteristics and the end conditions .The ratio of buckling load of column P to that of coulumn Q is
For a given soil mass with a water content of 15%, the void ratio is 0. pS ant eperific gravity of soil particles is 2.6. The degree of saturation of soil is
Match the dimensionless parameters in Group - I with the corresponding ratios in Group - II.
‘An isohyet is a line joining points of
The strength parameter of concrete used in design of plain jointed cement concrete pavement is
The shingle is a
Bulking of sand is caused due to
The refractory bricks are used primarily to resist
The seasoning of timber is done for
The ornamental moulded course placed on the top of a wall is called
The type of truss suitable for a span of about 3 metreis
The unit of strain is
A steel bar of 8mm is heated from $$10^\circ$$ C to $$25^\circ$$ C and the bar is frée.to expand.The bar will induce
Modulus of rigidity is the ratio of
A body is subjected a Trevensile stress of 400 MPain one plane accompanied by a simple shear, stress of 150 MPa . The maximum normalstresswill be
The atresein a body, when suddenly loaded is the stress when sameloadis applied gradually
‘Two beams A and Bofequal span carries samecentral point load. Beam ‘A’ has fixed end supports and Beam‘B’ has simply supported ends. The deflection of Beam ‘A’ will be .................. as comparedto that of Beam‘B’.
The maximum bending momentof a cantilever beamof length L and carcyinga.gradually varying load from zero at free end to w perunit lengthat the fixed end is a................
Apipeline of 300 mm diameter carryingwater at-an averagevelocity of 5 $$\frac{metre}{sec}$$ branches into two pipes of 150 mm and 200 mm diameter. The total flow rate of discharge of waterin the system is
The metacentric height iNhe distance between the
The hydraulic radius of a circular pipe flowing full and having a diameterof 300 mmis
Stoke is the unit of
The shearstress-strain graph for Newtonian fluid is a
When the waterin a channelis flowing at critical velocity, the
While surveying a plot of land by the method of plane tabling, the field observations
During leveling operations, if the back sight is more than the fore sight, then it indicates that
If the whole circle bearing of a line is $$180^\circ$$, then its reduced bearing is
The area of anyirregularfigure of the plotted map is measured with
The horizontal angle between the true meridian and the magnetic meridianis”
If bearing of line XY and XZ are $$26^\circ 10’ and 298^\circ 45’,$$ the value of sndluded’angle ZXYis
While measuring the distance between’ the ‘two points, if L is in kilometers, the correction for curvature of earth is
The unit of measurement of inertia of mass is
To-double the period of oscillation of a simple pendulum with small swings
The vertical distance between the springing line and the highest point on the intrados is called ......... of the arch
An artesian spring is formed
The finely divided dispersion of solid particles in water-which are not visible to the naked eye and cannot be removedby ordinary filters are known as
According to Indian standards, the consumption of water per capita per day for nursing homes, boarding schools‘and hostels is
If the-depletion of the oxygen is found to be 3 mg/litre after incubating 5 ml of sewage diluted to 250 ml for 5 days at $$20^\circ C$$ B.O.D of the sewage is
In sewers desigued with self cleansing velocity,
‘The sewage treatment units in which biological decomposition of‘organic matter takes place are called
A dry soil sample weighing 120 g has-a’volume-of80 ml and specific gravity 2.7. Its voids ratio is
The property of : soil which enables to regain partof its strength lost on remoulding in a short timewithout change of moisture content, is called
The coefficient of passive and active earth pressure for a loose sand having anangle of internal friction of $$30^\circ$$ is
Whenthe watertable is underthe base of the footing at a depth equal to half of the width of the footing, the bearing capacityof the soil is reducedto its
The cement concrete from which entrained air and excess water are removed after placing’it in position is called
Efflorescence in cementis caused dueto the exceés\Sof
The average shearstress forstructutal steel rolled beamsis calculated by dividing the shear force at the cross section by the
Webcrippling of a structural steel beam occurs due to
PERT stands for
As per mohs's scale the hardness of quartz and topaz respectively are
The whole period of cultivation from the time when irrigation water is first supplied for preparation of the ground at the time of sowing to its last watering before harvesting is called
If the crop rice requires, about 10 cms depth of water at an average interval of about 10 days and the crop period ofthe ricé.is 110 days, the delta for the croprice will be
A barrel camber for a highway consists of
Creeping of rails can be checkedby using
The formation width of a highway with no transverse slope on an embankmentis B. The height of the embankment is d and side slope of the embankmentis S: 1, The area of cross
section of the embankment is
Equation of a line normal to $$f(x) = (x + 4)^{\frac{1}{2}} + 1$$ at Q(0, 3) is:
Consider the shaded triangle P shown in the figure What is $$\int \int_{p} xy dx dy$$
Distance between the origin and the point nearest to it on the surface $$Z^{2}=1+xy$$ is :
At $$x = 0$$, the function $$f(x) = \mid x \mid$$ has
General solution of differential equation $$\frac{dy}{dx} = \cos(x + y)$$
A box contains 2 blue ,3 black, and 4 red balls are dreawn from the box at the random one at a time of replacement . The probability of drawing 2 blue balls first followed by 3
black balls and subsequently 4 red balls is:
Using the trapeZoidal rule and the dividing the interval of integration into three equal sub intervals ,the definite integral $$\int_{-1}^{+1} \mid x \mid dx$$ is :
Acircularring of radius 42 cm is cut and bentinto the form of a rectangle whose sides are in the ratio of 6:5. The small side of the rectangleis :
A tank is normally filled in 8 hours buttakes-2‘hours longer tofill because of a leak at the bottom. If the tankis full and due.*°leakagealone, the tank will get empty in ............... hours (Assume nofurther filling happens):
From a circular. sheet of paper having radius 50 cm, a sector of 40% area is removed in the shape of an arc section. If the remaining part is used to make a conical surface, then the ratio of the radius to height of the cone is:
