Civil Engineering - Online Test
Q1. A fine grained soil is found to be plastic in the water content range of 26-48%. As per
Indian Standard Classification System, the soil is classified as
Answer : Option D
Explaination / Solution:
Soil is plastic in range of 26% to 48%. So, plastic limit =26%, liquid limit = 48%
Since 35%
Q2. The magnitudes of vectors P, Q and R are 100 kN, 250 kN and 150 kN, respectively as
shown in the figure.
The respective values of the magnitude (in kN) and the direction (with respect to the x-axis)
of the resultant vector are
Answer : Option C
Explaination / Solution:
Resolving components w.r.t x-axis
Q3. The relationship between the length scale ratio (Lr) and the velocity scale ratio (Vr) in hydraulic
models, in which Froude dynamic similarity is maintained, is
Answer : Option D
Explaination / Solution:
Q4. The following statements are made related to the lengths of turning lanes at signalised
intersections
(i) 1.5 times the average number of vehicles (by vehicle type) that would store in turning lane per
cycle during the peak hour.
(ii) 2 times the average number of vehicles (by vehicle type) that would store in turning lane per
cycle during the peak hour.
(iii) Average number of vehicles (by vehicle type) that would store in the adjacent through lane
per cycle during the peak hour.
(iv) Average number of vehicles (by vehicle type) that would store in all lanes per cycle during
the peak hour.
As per the IRC recommendations, the correct choice for design length of storage lanes is
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. With initial condition
x(1) = 0.5, the solution of the differential equation 
is
is
Answer : Option D
Explaination / Solution:
Q6. The Muskingum model of routing a flood through a stream reach is expressed as
O2 = K0I2 + K1I1 + K2O1, where K0, K1 and K2 are the routing coefficients for the concerned
reach, I1 and I2 are the inflows to reach, and O1 and O2 are the are the outflows from the reach
corresponding to time steps 1 and 2 respectively. The sum of K0, K1 and K2 of the model is
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. Consider the plane truss with load P as shown in the figure. Let the horizontal and vertical reactions at the joint B be HB and reaction at the joint C.
Which one of the following sets
gives the correct values of VB, HB and VC?
Answer : Option A
Explaination / Solution:
Q8. A vertical cut is to be made in a soil mass having cohesion c, angle of internal friction
ϕ, and unit weight γ. Considering Ka and Kp as the coefficients of active and passive earth pressures, respectively, the maximum depth of unsupported excavation
is
Answer : Option D
Explaination / Solution:
Q9. A hydraulic jump takes place in a frictionless rectangular channel. The pre-jump depth is yp. The
alternate and sequent depths corresponding to yp are ya and ys respectively. The correct
relationship among yp, ya and ys is
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. The maximum value of F(x) = x3 – 9x2 + 24x + 5 in the interval [1, 6] is
Answer : Option C
Explaination / Solution:
