If, for a fluid in motion, pressure at a point is same in all directions, then the fluid is :
-
a real fluid -
a Newtonian fluid -
an ideal fluid -
a non-Newtonian fluid
The maximum allowable compressive stress corresponding to lateral buckling in a discretely laterally supported symmetrical I beam does not depend upon :
-
the modulus of elasticity -
the radius of gyration about the minor axis -
the span length of the beam -
the ratio of overall depth of thickness of the flange
Cavitation is caused by
-
high velocity -
low pressure -
high pressure -
high temperature
Plate bearing test withcm diameter plate on soil subgrade yielded a pressure of 1.x 105 N/m2 at 0.5 cm deflection. What is the elastic modulus of subgrade ?
-
56.18 x 105 N/m2 -
22.10 x 105 N/m2 -
44.25 x 105 N/m2 -
50.19 x 105 N/m2 -
None.
Group symbols assigned to silty sand and clayey sand are respectively
-
SS and CS -
SM and CS -
SM and SC -
MS and CS
Breakpoint chlorination of water involves addition of chlorine in an amount sufficient to:
-
react with any ammonia and readily oxidisable organic matter -
kill Giardia cysts -
react with inorganic matter -
reduce bacterial growth in filters
The type of surveying in which the curvature of the earth is taken into account is called
-
Geodetic surveying -
Plane surveying -
Preliminary surveying -
Topographical surveying
The downstream end of a long prismatic channel of mild slope, ends in a pool created by a dam. The resulting non-uniform water surface profile can be described as one of the following :
-
M3 profile ending in a hydraulic jump -
M1 profile that lies above normal depth line -
M2 profile that lies between critical and normal depth lines -
M3 profile that lies between critical and normal depth lines
Bituminous materials are commonly use in highway construction because of their good
-
tensile and compression properties. -
binding and water proofing properties. -
shear strength and tensile properties. -
bond and tensile properties.
It is proposed to widen and strengthen an existing 2-lane NH section as a divided highway. The existing traffic in one direction iscommercial vehicles (CV) per day. The construction will take 1 year. The design CBR of soil subgrade is found to be 5 percent, Given: traffic growth rate for CV = 8 percent, vehicle damage factor = 3.5 (standard axles per CV), design life =years and traffic distribution factor = 0.The cumulative standard axles (msa) computed are
-
35 -
37 -
65 -
70
The soils most susceptible to liquefaction are :
-
saturated dense sands -
saturated fine and medium sands of uniform particle size -
saturated clays of uniform size -
saturated gravels and cobbles
Flow at critical depth takes place in an open channel When
-
for a given specific energy, discharge is maximum -
for a given discharge, specific energy is maximum -
discharge is minimum for a given specific energy -
discharge is maximum for a given specific force
Use of coagulants such as alum
-
results in reduction of pH of the treated water. -
results in increase of pH of the treated water. -
results in no chnage in pH of the treated water. -
may cause an increase in decrease of decrease of pH of the treated water.
If the shear force at a section of beam under bending is equal to zero then the bending moment at the section is
-
zero -
maximum -
minimum -
minimum or maximum
The following general statement may be made about the penetration value and softening point of bitumen
-
higher the penetration value, higher is the softening point -
higher the penetration value, lower is the softening point -
for very high and very low penetration value the softening point is very low -
absolutely no correlation can be drawn between penetration value and softening point of bitumen
Two completely penetrating wells are located L (in metres) apart, in homogeneous confined aquifer. The drawdown measured at the mid point between the two wells (at a distance of 0.5 L from both the wells) is 2.0 m when only the first well is being pumped at the steady rate of Q1 m3/sec. When both the wells are being pumped at identical steady rate of Q2 m3/sec, the drawdown measured at the same location is0 m. It may be assumed that the drawdown at the wells always remains at 10.0 m when being pumped and the radius of influence is larger than 0.5 L Q1/Q2 is equal to
-
4/3 -
8/5 -
5/8 -
ln (L/2)
The maximum permissible deflection for a gantry girder, spanning over 6 m, on which an EOT (electric overhead travelling) crane of capacitykN is operating, is
-
8 mm -
10 mm -
12 mm -
18 mm
A road is provided with a horizontal circular curve having deflection angle ofand centre line radius ofm. A transition curve is to be provided at each end of the circular curve of such a length that the rate of gain of radial acceleration is 0.3 m/s3 at a speed ofkm per hour. Length of the transition curve required at each of the ends is
-
2.57 m -
33.33 m -
35.73 m -
1666.67 m
In network of pipes
-
the algebraic sum of discharges around each circuit is zero -
the algebraic sum of (pressure + datum) head drops around each circuit is zero -
the elevation of hydraulic grade line is assumed for each junction point -
elementary circuits are replaced by equivalent pipes
Sand drains are used to :
-
reduce the settlement -
accelerate the consolidation -
increase the permeability -
transfer the load
A footing 2 m x 1 m exerts a uniform pressure ofkN/m2 on the soil. Assuming a load dispersion of 2 vertical to 1 horizontal the average vertical stress (kN/m2) at 1.0 m below the footing is
-
50 -
75 -
80 -
100
A hyetograph is a graph representing
-
rainfall volume with time -
rainfall intensity with time -
rainfall intensity with duration -
rainfall intensity over an area
A volume of 3.0 x 106 m3 of ground water was pumped out from an unconfined aquifer, uniformly from an area of 5 km2. The pumping lowered the water table from initial level ofm tom. The specific yield of the aquifier is
-
0.20 -
0.30 -
0.40 -
0.50
The shape factor of the section shown in the below figure is 
-
1.5 -
1.12 -
2 -
1.7
Sand drains are used to :
-
reduce the settlement -
accelerate the consolidation -
increase the permeability -
transfer the load
The downstream end of a long prismatic channel of mild slope, ends in a pool created by a dam. The resulting non-uniform water surface profile can be described as one of the following :
-
M3 profile ending in a hydraulic jump -
M1 profile that lies above normal depth line -
M2 profile that lies between critical and normal depth lines -
M3 profile that lies between critical and normal depth lines
In which one of the following arrangements would the vertical force on the cylinder due to water be the maximum ?
The shape factor of the section shown in the below figure is
-
1.5 -
1.12 -
2 -
1.7
A road is provided with a horizontal circular curve having deflection angle ofand centre line radius ofm. A transition curve is to be provided at each end of the circular curve of such a length that the rate of gain of radial acceleration is 0.3 m/s3 at a speed ofkm per hour. Length of the transition curve required at each of the ends is
-
2.57 m -
33.33 m -
35.73 m -
1666.67 m