1.
The alluvial soil deposit consisting of mixture of sand, silt and clay is referred as
2.
The saturated sand deposit is having moisture content of 20% and specific gravity of particles is 2.6. If the void ratios in loosest and densest states are 0.76 and 0.36 respectively, its relative density is
3.
A soil has discharge velocity of 6x10^{-7} m/sec and void ratio of 0.50. Its seepage velocity is
4.
The void ratios of a clay sample at its liquid limit, plastic limit and dry state are 1.62, 0.60 and 0.48 respectively. If the specific gravity of soil grains is 2.7, its shrinkage limit is
5.
Isochrone indicates
A.
Same excess pore pressure line
B.
Excess Pore pressure variation line at a time
C.
Hydrostatic pressure variation line at a time
D.
Same compressibility line
6.
A highway embankment is being built by compacting borrow soil at dry density of 19.20 kN/m^{3}. The soil at borrow area is at a dry density of 16 kN/m^{3}. The number of trips required for a truck with its capacity of 6 m^{3} to form 100 m^{3} of embankment is
7.
Diamond core drilling is suitable in
8.
Dilatancy correction to SPT N – value is applied when the observed N – value is
9.
The coefficient of earth pressure for at rest condition is 0.50. The ratio of passive and active earth pressure coefficients is
10.
The factor of safety of an infinite slope in dry cohesionless soil upon submergence
11.
The negative skin friction develops over the pile shaft when
A.
Pile settles more than soil
B.
Soil settles more than pile
C.
D.
Piles are below water table
12.
Dynamic pile formulae are useful to calculate the capacity of
13.
The angle of projection at which the horizontal range and maximum height of a projectile are equal to
14.
A bucket full of water and weighing 75 N is pulled from a well 20 m deep. There is a small hole in the bucket through which water leaks at a constant rate of 2 N/m. The total workdone in pulling the bucket up the well.
15.
A cantilever beam of length l is loaded with uniformly distributed load w on the span. The beam is supported at the free end having levels same as that of fixed end (EI is constant)
- The prop reaction is wl/2
- The prop reaction is (3/8)wl
- The bending moment at the prop is wl^{2}/2
- Shear force is zero at x = 3/8 from the prop end
Which of these statements are correct
16.
A hallow cylindrical column, with both ends hinged of cross sectional area 81.7 cm^{2} and I = 1766 cm^{4} is 6 m long. If E = 0.8 x 10^{6} kg/cm^{2}, The Euler’s critical load in kg is
17.
If the deflection at the free end of a uniformly loaded cantilever beam is 18 mm and the slope of the deflection curve at the free end is 0.02 radians, then length of the beam is
18.
_{The ratio of flexural strength of a square section with its two sides horizontal to its diagonal horizontal}
19.
A two lane, one-way road with radius of 50 m is predominantly carrying lorries with wheelbase of 5 m. The speed of lorries is restricted to be between 60 kmph and 80 kmph. The mechanical widening and psychological widening required at 60 kmph are designated as W_{me},_{60} and W_{ps},_{60} , respectively. The mechanical widening and psychological widening required at 80 kmph are designated as W_{me}_{,80} and W_{ps,}_{80 }, respectively. The correct values of W_{me ,60} , W_{ps} ,_{60}, W_{me} ,_{80 },W_{ps} ,_{80 }, respectively are
A.
0.89m, 0.50m, 1.19m, 0.50m
B.
0.50m, 0.89m, 0.50m, 1.19m
C.
0.50m, 1.19m, 0.50m, 0.89m
D.
1.19m,0.50m, 0.89m, 0.50m
20.
A motorist travelling at 100 km/h on a highway needs to take the next exit, which has a speed limit of 50 km/h. The section of the roadway before the ramp entry has a downgrade of 3% and coefficient of friction (f) is 0.35. In order to enter the ramp at the maximum allowable speed limit, the braking distance (expressed in m) from the exit ramp is
21.
Consider the following statements in the context of geometric design of roads.
1: A simple parabolic curve is an acceptable shape for summit curves
2: Comfort to passengers is an important consideration in the design of summit curves
The correct option evaluating the above statements and their relationship is
A.
B.
1 is true , 2 is true and 2 is correct reason for 1
C.
1 is true , 2 is true and 2 is not correct reason for 1
D.
22.
The total length of a valley formed by two gradients - 3% and + 2% curve between the two tangent points to provide a rate of change of centrifugal acceleration 0.6 m/sec^{3}, for a design speed 100 kmph., is
23.
_{In Marshall method of mix design, the coarse aggregate, fine aggregate, fines and bitumen having respective values of specific gravity 2.60, 2.70, 2.65 and 1.01, are mixed in the relative proportions (% by weight) of 55.0, 35.8, 3.7 and 5.5 respectively. The theoretical specific gravity of the mix and the effective specific gravity of the aggregates in the mix respectively are:}
24.
Peak Hour Factor (PHF) is used to represent the proportion of peak sub-hourly traffic flow within the peak hour. If 15-minute sub-hours are considered, the theoretically possible range of PHF will be
25.
^{The critical flow ratios for a three-phase signal are found to be 0.30, 0.25, and 0.25. The total time lost in the cycle is 10 s. Pedestrian crossings at this junction are not significant. The respective Green times (expressed in seconds and rounded off to the nearest integer) for the three phases are}