Civil Engineering - Online Test
Q1. Two soil profile are used as backfill behind a retaining wall as shown in the figure,
where γt is total unit weight and c’ & φ' ‘ are effective shear parameters. Find the
resultant active earth pressure in kN/m
Answer : Option A
Explaination / Solution:
Q2. Maximum of the real valued function f(x) = (x – 1)2/3 occurs at x equal to
Answer : Option C
Explaination / Solution:
Q3. A coastal city produces municipal solid waste (MSW) with high moisture content,
high organic materials, low calorific value and low inorganic materials. The most
effective and sustainable option for MSW management in that city is
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. The magnetic bearing of a line AB was N 59o 30' W in the year 1967, when the
declination was 4o 10' E. If the present declination is 3o W, the whole circle
bearing of the line is
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. A steel member ‘M’ has reversal of stress due to live loads, whereas another member ‘N’ has
reversal of stress due to wind load. As per IS 800:2007, the maximum slenderness ratio permitted
is
Answer : Option A
Explaination / Solution:
M – due to live load
N – due to wind load
As per IS800.
M - λ - 180
N - λ - 350 M<N
Q6. An automobile with projected area 2.6 m2 is running on a road with a speed of 120 km per hour. The mass density and the kinematic viscosity of air are 1.2 kg/m3 and 1.5 × 10-5 m2/s, respectively. The drag coefficient is 0.30.
The metric horse power required to overcome the drag force is
Answer : Option C
Explaination / Solution:
No Explaination.
Q7. A waste water stream (flow = 2 m3 /s, ultimate BOD = 90 mg/l) is joining a small river (flow
= 12 m3 /s, ultimate BOD = 5 mg/l). Both water streams get mixed up instantaneously. Crosssectional
area of the river is 50 m2 . Assuming the de-oxygenation rate constant, k' = 0.25/day,
the BOD (in mg/l) of the river water, 10 km downstream of the mixing point is
Answer : Option C
Explaination / Solution:
Q8. The soil profile above the rock surface at 25o infinite slope is shown in figure
where Su is undrain shear stress and γt is total unit weight. The slip will occur at
a depth of 
Answer : Option A
Explaination / Solution:
The slip will occur when shear stress is greater than or equal to shear strength
Q9. All the values of the multi-valued complex function
1i, where 
Answer : Option B
Explaination / Solution:
Q10. According to the Noise Pollution (Regulation and Control) Rules, 2000, of the
Ministry of Environment and Forests, India, the day time and night time noise
level limits in ambient air for residential areas expressed in dB (A) Leq are
Answer : Option B
Explaination / Solution:
No Explaination.
