Civil Engineering - Online Test
Q1. Consider four common air pollutants found in urban environments, NO, SO2, Soot and O3 . Among these with one is the secondary air pollutant?
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. Surcharge loading required to placed on the horizontal backfill of a smooth retaining vertical wall
so as to completely eliminate tensile crack is:
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. It is proposed to widen and strength and existing 2-lane NH section as a divided highway. The existing traffic in one direction is 2500 commercial vehicles (CV) per day. The construction will take 1 year. The design CBR of soil subgrade is found to be 5 per cent. Given : traffic growth rate for CV = 8 per cent, vehicle damage factor =3.5 (standard axles per CV), design life = 10 years and traffic distribution factor =0.75. The cumulative standard axles (msa) computed are
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. The lengths and bearing of a closed traverse PQRSP are given below.
The missing length and bearing, respectively of the line SP are
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. The ratio Nf / Nd is known as shape-factor where Nf is the number of flow
channels and Nd is the equipotential drop. The flownet always drawn with a
constant b/ a ratio where b and a are distance between two consecutive flow lines
and equipotential lines respectively. Assuming that b/a ratio remains same, the
shape factor of a flow net will change if the
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. The minimum value of the function f(x) = x3 - 3x2 - 24x +
100 in the interval [-3. 3] is
Answer : Option B
Explaination / Solution:
Q7. The e-log P curve shown in the figure is representative of
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. Ion concentration obtained for a groundwater sample (having pH = 8.1) are given below
Carbonate hardness (mg/L as CaCO3) presnt in the above water sample is
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. The reference pressure used in the determination of sound pressure level is
Answer : Option A
Explaination / Solution:
No Explaination.
Q10. Match the information related to test on aggregates given in Group-I with that in Group-II.
Group-I Group-II
P. Resistance to impact 1. Hardness
Q. Resistance to wear 2. Strength
R. Resistance to weathering action 3. Toughness
S. Resistance to crushing 4. Soundness
Answer : Option B
Explaination / Solution:
Resistance to impact →Toughness
Resistance to wear → Hardness
Resistance to weathering → Soundness
Resistance to crushing → Strength
