Previous Year Questions
42 questions — organised by subject with solutions and explanations.
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A well of diameter 20 cm fully penetrates a confined aquifer. After a long period of pumping at rate of 2720 litres per minute, the observations of drawdown taken at 10 m and 100 m distances from the
If the of a wastewater sample is 75mg/L and reaction rate constant k (base e) is 0.345 per day, the amount of BOD remaining in the given sample after 10 days is
A coastal city produces municipal solid waste (MSW) with high moisture content, high organic materials, low calorific value and low inorganic materials. The most effective and sustainable option for M
An air parcel having 40 C temperature moves from ground level to 500 m elevation in dry air following the "adiabatic lapse rate". The resulting temperature of air parcel at 500m elevation will be
Ion concentrations obtained for a groundwater sample (having pH=8.1) are given below. Carbonate hardness (mg/L as ) present in the above water sample is
According to the Noise Pollution (Regulation and Control) Rules, 2000, of the Ministry of Environment and Forests, India, the day time and night time noise level limits in ambient air for residential
Group I gives a list of devices and Group II gives the list of uses The correct match of Group I with Group II is
For a rectangular channel seetion, Group I lists geometrical elements and Group II gives proportions for hydraulically efficient section is the flow depth corresponding to hydraulically efficient sect
The flow in a rectangular channel is subcritical. If width of the channel is reduced at a certain section, the water surface under no-choke condition will
The Froude number of flow in a rectangular channel is 0.8. If te depth of flow is 1.5m, the critical depth is
A mild-sloped channel is followed by a steep-sloped channel. The profiles of gradually varied flow in the channel are
A bench mark has been established at the soffit of an ornamental arch at the known elevation of 100.0 m above mean sea level. The back sight used to establish height of instrument is a inverted staffr
The local mean time at a place located in longitude 90 40' E when the standard time is 6 hours and 30 minutes and the standard meridian is 82 30' E is
The unconfined compressive strength of a saturated clay sample is 54kPa. The value of sobesion for the clay is
A fine grained soil has liquid limit of 60 and plastic limit of 20. As per the plasticity chart, according to IS classification, the soil is represented by the letter symbols
An open ended steel barrel of 1m height and 1m diameter is filled with saturated fine sand having coefficient of permability of m/s. The barrel stands on a saturated bed of gravel. The time required f
In a compaction test, G, w, S and e represent the specific gravity, water content, degree of saturation and void ratio of the soil sample, respectively. If represents the unit weight of water and repr
The e-log p curve shown in the figure is representative of
The unconfined compressive strength of a saturated clay sample is 54kPa. If a squre footing of size 4m x 4m is resting on the surface of a deposit of the above clay, the ultimate bearing capacity of t
The vertical stress at point P1 due to the point load Q on the ground surface as shown in figure is . According to Boussinesq's equation, the vertical stress at point P2 shown in figure will be
The ultimate load capacity of a 10 m long concrete pile of square cross section 500mm x 500 mm driven into a homogeneous clay layer having undrained cohesion value of 40 kPa is 700 kN. If the cross se
Quick sand condition occurs when
If represent the total horizontal stress, total vertical stress, effective horizontal stress and effective vertical stress on a soil element, respectively, the coefficient of earth pressure at rest is
A doubly reinforced rectangular concrete beam has a width of 300mm and an effective depth of 500mm. the beam is reinforced with 2200 of steel in tension and 628 of steel in compression. The effective
As per India standard code of practice for pre stressed concrete (IS:1343-1980) the minimum grades of concrete to be used for post-tensioned and pre-tensioned structural elements are respectively
For the simply supported beam of length L, subjected to a uniformly distributed moment M kN-m per unit length as shown in the figure, the bending moment (in kN-m) at the mid-span of the beam is
The number of independent elastic constants for a linear elastic isotropic and homogeneous material is
A solid circular shaft of diameter d and length L is fixed at one end free at the other end. A torque T is applied at the free end. The shear modulus of the material is G. The angle of twist at the fr
The effective length of a column of length L fixed against rotation and translation at one end and free at the other end is
The major and minor principal stresses at a point are 3MPa and -3MPa respectively. The maximum shear stress at the point is
Two people weighing W each are sitting on a plank of length L floating on water at L/4 from either end. Neglecting the weight of he plank, the bending moment at the centre of the plank is
Two plates, subjected to direct ension, each of 10 mm thickness and having widths of 100 mm and 175mm, respectively are to be fillet welded with an overlap of 200 mm. Given that the permissible weld s
A double cover butt riveted joint is used to connect two flat of 200 mm width and 14 mm thickness as shown in the figure. There are twelve power driven rivets of 20 mm diameter at a pitch of 50 mm in
As per IRC : 67 : 2001, a traffic sign indicating the Speed Limit on a road should be of
Aggregate impact value indicates the following property of aggregates
Consider the following statements in the context of geometric design of roads. I : A simple parabolic curve is an acceptable shape for summit curves II : Comfort to passengers is an important consider
The design speed for a two-lane road is 80 km/h. When a design vehicle with a wheelbase of 6.6 m is negotiating a horizontal curve on that road, the off-tracking is measured as 0.096 m. The required w
Consider the following statements in the context of cement concrete pavements I : Warping stresses in cement concrete pavements are caused by the seasonal variation in temperature. II : Tie bars are g