The maximum shear force in a simply supported beam of span L, subjected to a central point load,
W is given by the following expression:
For simply supported beam shown in fig., the magnitude of vertical reaction at 'B' is
"Poission's ratio" is defined as the ratio of
If 'A' is the area of cross-section and 'I' is the moment of inertia of a given plane section, then radius of gyration (r) is given by the formula
Strain energy due to axial deformation is given by
(σ: resultant stress
P : axial load
∈ : strain
E : modulus of elasticity)
For the cantilever beam shown fig, the value ofshear Force at Fixed end is :
Which one of the following gives the distributino factor for members AE and AC of box sectionshown in the given figure
For the portal frame shown , the shear equation is
A twohinged semicircular arch of radius 'R' carries a concentrated load 'W' at the crown.
The horizontal thrust is
Due to some point load anywhere on a fixed beam. the maximum free bending moment is M.The sum of fixed end moment is
The method of computing areas by subdividing a plot into triangle is suitable for.
For small scale mapping, an error in centring is about permissible
The multiplying constant of techeometry is generally.
Correction due to refraction is given by
In reciprocal levelling the error which is no tcompletely eliminated is due to-
How high should a helicopter pilot rise at a point A just to see the horizon at point B if the distance AB is 40 km ?
Which of the following sight is applicable for a change point
What is sensitvitity of Dumply level
Two peg test is done for-
A station where bearing of line is measured
When 1st class brick is immersed in cold water for 24 hours, it should not absorb water by weightmore than
The temperature at which the bricks are burn tin kiln varies from
As per specifications, the Initial setting time of ordinary portland cement should not be lessthan
In cements, generally the increase in strength during a period of 14 days to 28 days isprimarily due to
What is the approximate ratio of the strength of cement concrete at 7 days to what at 28days curing?
Which one of the following properties of cement concrete is ascertained by conducitngcompaction factor test?
The mix design for pavement concrete is based on
The mix design for pavement concrete (High way /Runway) is based on the flexural strength (fe) instead of charecteristic compressive strength (fck) .Because the soil beneath the concrete pavement may be scoured by flood or some other reasons and the concrete povement will behave as a beam and the load on pavement is to be limited by flexural strength of concrete .Required flexural strength is converted into corresponding characteristic compressive strength by the expression fe=0.7fck1/2 and the concrete is designed for the required compressive strength as usual .
As a natural material, timber is which one of the following
The defect which develops due to uncontrolled and non uniform loss of moisture from wood isknown as which one of the following?
Why are bricks soaked in water before using in brick masonary?
Which type of brick masonary bond is provided for heavy loads on masonary?
The light weight concrete is prepared by
Addition of 1-2% sodium hydroxide in concrete
The grade of concrete is not recommended by Is: 456 is
The diameter of 'Vicat' Plungs is 10 mm. and length varies from.
Ratio of bearing capacity of double under Reamed (U.R.) pile to that of single U.R. pile isnearly
Influence factor for immediate settlement of footing depends on its
A raft of 6m×9m is founded at a depth of 3m in a cohesive soil having C = 120KN/m2. The ultimate net bearing capacity of the soil using Terzaghi's tehor will be nearly
If the proportion of soil passing 75 micron sieve is 50% and the liquid limit and plastic limit are40% and 20% respectively, then the group index of the soil is
A soil sample has a void ratio of 0.5 and its porosity will be close to
The nature of earth pressure above dredge line behind a cantilever sheet pile wall is
Which one of the following soil types is most likely to be subjected to liquefaction underseismic forces?
A soil sampler has inner and outer radii of 25 mm and 30mm respectively. The area ratio ofthe Sampler is
Based on grain distribution analysis the D10, D30 and D60 value of a given soil are 0.23mm,0.3mm and 0.41mm respectively. As per ISCode the soil classification will be
The plasticity index and the percentage of grain size finer than 2 microns of a clay sample are 25 and 15, respectively. Its activity ratio is
A soil sample having a void ratio of 1.3, water con.... of 50% and a specific gravity of 2.60,is in a state of
Which one of the following correctly represents the dry unit weight of a soil sample which has
a bulk unit weight of γγ at a moisture content of W%?
For a sand having an internal friction of 30°. The ratio of passive to active lateral earthpressure will be
A saturated clay layer with double drainage take 5 years to attain 50% degree ofconsolidation under s tructure. If the same layer were to be single drained what would be thetime (in years) required to attain the same conditoins under the same loading conditions?
The e-p curve for a soil is shown in the above figure. The coefficient of compressibility (in m2/KN) of the soil is
Side face reinforcement is provided in a beam when the depth of web exceeds
Drops are provided in flat slabs to resist
Flexural collapse in overreinforced beams is
In an R.CC beam, side face reinforcement is provided if its depth exceeds
The limiting compressive strain in concrete is
The magnitude of loss of prestress due to relaxation of steel is in the range of
When assessing the strength of structure as per the limit state of collapse, the value of partial safety factor for steel is taken as
The assumption that the plane sections normal before bending remain normal after bending is
In the limit state method of design, the failure criterion for reinforced concrete beams and columns is
The effective width 'bf' of flange of a continuousT-beam in a floor system is given by where to represents the
The cavitation and pitting can be prevented by creating which one of the following conditions ?
The flow of water in a wash hand basin when it is being emptied through a central opening is anexample of
In fluid flow, the line of constant piezometric head passes through two points which have the same
An error of 0.5% in the measurement of head in a v-notch vauses an error of
A pumped storage plant is a
The least expensive and most suitable excrete disposal unit for rural areas would be the
Which one of the following methods would be best suited for disposal of plastic and rubber waste?
At a sewage treatment plant for a flow of 3m3/s, The cross-sectional area of grif chamber willbe about
'Air binding' may occur in
In an activiated sludge process, the sludge volume index can be controlled by
In urban air pollution, the mosts poisonous gas is supposed to be carbon monoxide. It ishazardous becouse
In aerobic conditions, the microbial decomposition of organics results in theformation of which one of the following?
A waste water sample of 2ml is made upto 300 ml is BoD bottle with distilled water. InitialDo of the Sample is 8 mg/l and after 5 days itis 2mg/l. What is its BoD?
Which one of the following organisms is responsible for enteric fever?
In which type of lakes, does a perfect ecological equilibrium among the producers decomposersand consumer groups of organism exist?
The following data pertain to a natural drain crossing an irrigation canal:
Which one of the Following types of cross drainage should be recommended in this case?
At a certain point in the floor of weir, the uplift pressure head due to seepage is 4.5m. If therelative density of concrete is 2.5, the minimum thickness of floor required at this point tocounteract the uplift pressure is
A canal was designed tu supply the irrigation needs of 1000 lac. of land growing rice of 140 days base period and having a delta of 130cm. If the canal water is used to irrigate wheat ofbase period 119 days. and having delta of 50cm, the area that can be irrigated is
The delta for a crop having Base period 120 days is 70cm what is the duty
What is the moisture depth available for evapotraspiration in rrot zone of 1m depth Soil,if dry weight of soil is 1.5gm/cc, field capacity is 35% and permanet wilting point is 15%?
FC = 35 %, PWP = 15%
γd = 1.5 g/cc, γw = 1 g/cc
d = 1 m
The depth of water stored (dw) in the root zone
dw = 0.3 m = 300 mm
The distance between the outer faces of glanges of a plate girder, is known as
Effective Sectional Area of a compression member is
A Gillet weld whose axis is parallel to the direction of applied load, is known as
The greatest permissible clear dimension of the web of thickness t in the panel of a plate-girderis restricted to
As per ISI, rolled Steel Beam Sections are classified into
The deflection of beams may be decreased by
On steel structures the dead load is the wieght of
The net area of round bars to resist the tension, is the area of corsss sction at
The maximum slope along a ramp for vechicle repairs is
As per IRC, the maximum permissible length of a single unit, with more than 2 axles, is
The convexity given to the curved cross-section carriageway, between the crown and the edgeof the carriageway, is called
An enoscope is used to determine
The compensation is gradient on horizontal curves is roughly
If 'S' spped of vechicle and R is the radius of curves, the equilibrium superelevation required
to counteract centrifugal force is given by
A, B, C Classification of cities is based upon?
Original cost of property minus depreciation is ?
Replacement of a window and provision of a door is its place come under
The standard width of asbestos cement gorrugated sheet is
While estimating for plastering, usually no deduction is made for ?
In absence of detail design, the percentage of steel and concrete in column is usually taken as