Civil Engineering - Online Test
Q1. In Marshall method of mix design, the coarse aggregate, fine aggregate, fines and bitumen having
respective values of specific gravity 2.60, 2.70, 2.65 and 1.01, are mixed in the relative
proportions (% by weight) of 55.0, 35.8, 3.7 and 5.5 respectively. The theoretical specific gravity
of the mix and the effective specific gravity of the aggregates in the mix respectively are
Answer : Option A
Explaination / Solution:
Q2. If the jam density is given as kj and the free flow speed is given as uf, the
maximum flow for a linear traffic speed-density model is given by which of the
following options?
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. The observations from a closed loop traverse around an obstacle are
What is the value of the missing measurement (rounded off to the nearest 10 mm)
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. For a body completely submerged in a fluid, the centre of gravity (G) and centre of Buoyancy (O) are known. The body is considered to be in stable equilibrium if
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. We have a set of 3 linear equations in 3 unknowns.
means X and Y are
equivalent statements and 
means X and Y are not equivalent statements.
means X and Y are
equivalent statements and means X and Y are not equivalent statements. P: There is a unique solution.
Q: The equations are linearly independent.
R: All eigenvalues of the coefficient matrix are nonzero.
S: The determinant of the coefficient matrix is nonzero.
Which one of the following is TRUE?
Answer : Option A
Explaination / Solution:
No Explaination.
Q6. The moisture holding capacity of the soil in a 100 hectare farm is 18 cm/m . The field is to be irrigated when 50 percent of the available moisture in the root zone is depleted. The irrigation water is to be supplied by a pump working for 10 hours a day, and water application efficiency is 75 percent. Details of crops planned for cultivation are as follows
The area of crop ‘Y ’ that can be irrigated when the available capacity of irrigation
system is 40 litres/sec is
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. Two coins R and S are tossed. The 4 joint events HRHS,
TR TS,HR TS,TR HS have
probabilities 0.28, 0.18, 0.30, 0.24, respectively, where H represents head and T
represents tail. Which one of the following is TRUE?
Answer : Option D
Explaination / Solution:
Q8. Following chemical species were repo9rted for water sample form a well :
Alkalinity present in the water in mg/L as CaCO3 is
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. In a system two connected rigid bars AC and BC are of identical length, L with pin supports at A
and B. The bars are interconnected at C by a frictionless hinge. The rotation of the hinge is
restrained by a rotational spring of stiffness, k. The system initially assumes a straight line
configuration, ACB. Assuming both the bars as weightless, the rotation at supports, A and B, due
to a transverse load, P applied at C is
Answer : Option A
Explaination / Solution:
External work done
= 1/2 × ρ × L.θ..........(1)
Strain energy stored in spring
Q10. If v is the initial speed of a vehicle, g is the gravitational acceleration, G is the
upward longitudinal slope of the road and fr is the coefficient of rolling friction
during braking, the braking distance (measured horizontally) for the vehicle to
stop is
Answer : Option B
Explaination / Solution:
No Explaination.
