Q.1

A steel beam supporting loads from the floor slab as well as from wall is termed as

  • Stringer beam
  • Lintel beam
  • Spandrel beam
  • Header beam
Q.2

The centre of pressure of a liquid on a plane surface immersed vertically in a static body of liquid, always lies below the centroid of the surface area, because

  • in liquids the pressure acting is same in-all directions
  • there is no shear stress in liquids at rest
  • the liquid pressure is constant over depth
  • the liquid pressure increases linearly with depth
Q.3

Width of carriage way for a single lane is recommended to be

  • 7.5 m
  • 7.0 m
  • 3.75 m
  • 5.5 m
Q.4

Compaction by vibratory roller is the best method of compaction in case of

  • moist silty sand
  • well graded dry sand
  • clay of medium compressibility
  • silt of high compressibility
Q.5

Storage coefficient of a compressible confined aquifer is a function of

  • specific weight of water, thickness of the aquifer, compressibility of the aquifer and that of water
  • permeability, thickness and compressibility of aquifer and compressibility of water
  • transmissibility of the aquifer and compressibility of water
  • transmissibility of aquifer and specific yield of aquifer
Q.6

In a reinforced concrete beam-column, the increase in the flexural strength along with the increase in the axial strength occurs

  • beyond the elastic limit of the material
  • when the yield of the tension reinforcement governs the strength
  • when the crushing of the concrete in the compression zone governs the strength
  • never
Q.7

While deriving an expression for loss of head due to a sudden expansion in a pipe, in addition to the continuity and impulse-momentum equations, one of the following assumptions is made :

  • Head loss due to friction is equal to the head loss in eddying motion
  • The mean pressure in eddying fluid is equal to the downstream pressure
  • The mean pressure in eddying fluid is equal to the upstream pressure
  • Head lost in eddies is neglected
Q.8

The standard plate size in a plate bearing test for finding modulus of subgrade reaction (k) value is

  • 100 cm diameter.
  • 50 cm diameter.
  • 75 cm diameter.
  • 25 cm diameter.
Q.9

The sequent depth ratio of a hydraulic jump in a rectangular horizontal channel is 10.The Froude Number at the beginning of the jump is :

  • 5.64
  • 7.63
  • 8.05
  • 13.61
Q.10

The main constituents of gas generated during the anaerobic digestion of sewage sludge are :

  • carbon dioxide and methane
  • methane and ethane
  • carbon dioxide and carbon monoxide
  • carbon monoxide and nitrogen
Q.11

Mud pumping is commonly associated with

  • bituminous penetration mecadam construction
  • cement concrete pavement on granular subgrade
  • premixed bituminous construction
  • cement concrete pavement on clay sub-grade
Q.12

Biochemical oxygen demand (BOD) of waste water is a measure of

  • total concentration of a biochemicals
  • total concentration of organic matter
  • concentration of biodegradable organic matter
  • concentration of chemically oxidisable matter
Q.13

The penetration test for bitumen is conduced at a temperature of

  • 60°C
  • 37°C
  • 25°C
  • 50°C
Q.14

The unit weight of a soil at zero air voids depends on :

  • specific gravity
  • water content
  • unit weight of water
  • all the above
Q.15

For an anisotropic soil, permeabilities in x and y directions are kx and ky respectively in a two dimensional flow. The effective permeability keq for the soil is given by

  • kx + ky
  • kx/ky
  • (kx2 + ky2)1/2
  • (kxky)1/2
Q.16

The most commonly used sampler for obtaining a disturbed sample of the soil is

  • split spoon sampler
  • open drive sampler
  • piston sampler
  • thin wall shelby tube sampler
Q.17

The shape of the cross-section, which has the largest shape factor, is

  • rectangular
  • I-section
  • diamond
  • solid circular
Q.18

Factor of safety adopted by IS :-while arriving at the permissible stress in axial compression, is :

  • 2.00
  • 1.00
  • 1.67
  • 1.50
Q.19

The expression for the specific speed of a pump :

  • does not include the diameter of the impeller
  • yields larger values for radial pumps than for axial flow pump
  • is necessarily non dimensional
  • includes power as one of the variables
Q.20

The group efficiency of a pile group

  • will be always less than 100%.
  • will be always greater than 100%.
  • may be less than 100% or more than 100%.
  • will be more than 100% for pile groups in cohensionless soils and less than 100% for those in cohesive soils.
Q.21

The ratio of unconfined compressive strength of an undisturbed sample of soil to that of a remoulded sample, at the same water content, is known as :

  • activity
  • damping
  • plasticity
  • sensitivity
Q.22

Two samples of water A and B have pH values of 4.4 and 6.4 respectively. How many times more acidic sample A is than sample B ?

  • 0
  • 50
  • 100
  • 200
Q.23

The most important water quality parameter for domestic use of water is

  • carbonate hardness
  • non-carbonate hardness
  • coliform group of organisms
  • chlorides
Q.24

The BOD removal efficiency, in percentage, during primary treatmet under normal conditions is about

  • 65%
  • 85%
  • 30%
  • Zero
Q.25

Chemical oxygen Demand (COD) of a sample is always greater than Biochemical Oxygen Demand (BOD) since it represents :

  • biodegradable organic matter only
  • biodegradable and non-biodegradable organic matter
  • non-biodegradable organic matter
  • inorganic matter
Q.26

The unit of dynamic viscosity of a fluid is

  • m2/s
  • Ns/m2
  • Pa s/m2
  • kg s2/m2
Q.27

The temporary hardness of water, is caused by:

  • dissolved carbondioxide
  • bicarbonates and carbonates of calcium and magnesium
  • bicarbonates of sodium and potassium
  • carbonates of calucium and magnesium
Q.28

Well foundations are commonly used as foundations for the following structures :

  • Water tanks
  • Bridges
  • Buildings
  • Reciprocating machines
Q.29

The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is

  • 3000 mm
  • 4600 mm
  • 4750 mm
  • 6400 mm
Q.30

If the pump head ism, discharge is 0.m3/s and the motor speed isrpm at rated condition, the specific speed of the pump is about

  • 4
  • 26
  • 38
  • 1440
0 h : 0 m : 1 s