Civil Engineering - Online Test
Q1. Two geometrically identical isolated footings, X (linear elastic) and Y (rigid), are loaded identically (shown alongside). The soil reactions will
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. An agricultural land of 437 ha is to be irrigated for a particular crop. The base
period of the crop is 90 days and the total depth of water required by the crop is
105 cm. If a rainfall of 15 cm occurs during the base period, the duty of irrigation
water is
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. For the set of equations
The following statement is true
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. A sand layer found at sea floor under 20m water depth is characterized with relative density = 40%, maximum void ratio = 1.0, minimum void ratio = 0.5, and specific gravity of soil solids = 2.67. Assume the specific gravity of sea water to be 1.03 and the unit weight of fresh water to be 9.81kN/m3.
What would be the change in the effective stress (rounded off to the nearest
integer value of kPa) at 30m depth into the sand layer if the sea water level
permanently rises by 2m ?
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. Beam subjected to moving distributed load of 4 kN/m maximum shear force that
can occur just to right of Q is
Answer : Option C
Explaination / Solution:
When a cut is made just to the right of Q and displacements are given such that
A’B’ is parallel to B’C’, as B’ is very close to Q, displacement of B’ to the left will
be zero and that to the right will be 1.
Hence slope of B'C' = 1/20 ⇒ Slope of B'A ' = (1/20)×5 = 0.25
ordinate at A ' = (1/20)×5 = 0.25; ordinate at D' = (1/20)×5 = 0.25
If udl is loading span PR, we get maximum SF just to the right of Q
⇒ SF = ((1/2)×0.25×10+(1/2)×20×1)×4 = 45 kN
Q6. One hour triangular unit hydrograph of a watershed has the peak discharge of 60 m3 /sec cm at 10 hours and time base of 30 hours. The Φ index is 0.4 cm per hour and base flow is 15 m3 /sec.
If there is rainfall of 5.4 cm in 1 hour, the ordinate of the flood hydrograph at
15th hour is
Answer : Option B
Explaination / Solution:
No Explaination.
Q7. The results for sieve analysis carried out for three types of sand, P, Q and R, are
given in the adjoining figure. If the fineness modulus values of the three sands are
given as FMP, FMQ and FMR, it can be stated that
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. Two people weighing W each are sittingon 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
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. The trace and determinant of a 2 × 2 matrix are known to be –2 and –35 respectively. It’s Eigenvalues are
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. A wastewater sample contains 10-5.6 mmol/L of OH- ions at 25oC The pH of this
sample is
Answer : Option D
Explaination / Solution:
No Explaination.
