Civil Engineering - Online Test
Q1. The ordinates of a 2-h unit hydrograph at 1 hour intervals starting from time t = 0, are
0, 3, 8, 6, 3, 2 and 0 m3/s. Use trapezoidal rule for numerical integration, if required.
What is the catchment area represented by the unit hydrograph?
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. The flow in a horizontal, frictionless rectangular open channel is supercritical. A smooth hump is built on the channel floor. As the height of hump is increased, choked condition is attained. With further increase in the height of the hump, the water surface will
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. In Marshall testing of bituminous mixes, as the bitumen content increases the flow value
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. The unconfined compressive strength of a saturated clay sample is 54 kPa. The value of sobesion for the clay is
Answer : Option C
Explaination / Solution:
No Explaination.
Q5. The z-Transform of a sequence x[n] is given as X(z) = 2z+4-4/z+3z2. If y[n] is the first
difference of x[n], then Y(z) is given by
Answer : Option A
Explaination / Solution:
y(n) is first difference of x(n) So
g(n)=x(n)-x(n-1)
Q6. The value of lateral friction or side friction used in the design of horizontal curve
as per Indian Roads Congress guidelines is
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. A fixed end beam is subjected to a load, W at 1/3rd span from the left support as shown in the
figure. The collapse load of the beam is
Answer : Option C
Explaination / Solution:
No Explaination.
Q8. A taper hole is inspected using a CMM, with a probe of 2mm diameter. At a
height, Z=10mm from the bottom, 5 points are touched and a diameter of circle
(not compensated for probe size) is obtained as 20mm. similarly, a 40mm
diameter is obtained at a height Z=40mm. the smaller diameter (in mm) of hole
at Z=0 is
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. The normal depth in a wide rectangular channel is increased by 10%. The
percentage increase in discharge in the channel is
Answer : Option D
Explaination / Solution:
The discharge in the channel is given by
Q10. The unconfined compressive strength of a saturated clay sample is 54 kPa. If a squre footing of size 4 × 4 m is resting on the surface of a deposit of the above clay, the ultimate bearing capacity of the footing (as per Terzaghi’s equation) is
Answer : Option C
Explaination / Solution:
No Explaination.
