CE GATE 2009 - Online Test
Q1.
A saturated undisturbed sample from a clay strata has moisture content to
22. % 22 and specific weight of 2.7. Assuming γw = 10 kN/m3, the void ratio and
the saturated unit weight of the clay, respectively are
Using the properties of the clay layer derived from the above Statement, the
consolidation settlement of the same clay layer under a square footing (neglecting
its self weight) with additional data shown in the figure below (assume the stress
distribution as 1 H : 2 V from the edge of the footing and γw = 10 kN/m3) is
Answer : Option B
Explaination / Solution:
No Explaination.
Q2. During a CBR test, the load sustained by a remolded soil specimen at 5.00
penetration is 50 kg. The CBR value of the soil will be
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. A horizontal flow primary clarifier treats wastewater in which 10%, 60% and
30% of particles have settling velocities of 0.1 mm/s, 0.2 mm/s and 0.1 mm/s
respectively. What would be the total percentage of particles removed if clarifier
operates at a Surface Overflow Rate (SOR) of 43.2 m3 /m2 d?
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. An aerobic reactor receives wastewater at a flow rate of 500 m3d having a COD of
2000 mg/L. The effluent COD is 400 mg/L. Assuming that wastewater contains
80% biodegradable waste, the daily volume of methane produced by the reactor is
Answer : Option C
Explaination / Solution:
No Explaination.
Q5. Direct step method of computation for gradually varied flow is
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. Water flows through a 100 mm diameter pipe with a velocity of 0.015 m/sec. If
the kinematic viscosity of water is 1.13 × 10-6 m2 sec, the friction factor of the
pipe material is
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. A rectangular open channel of width 4.5 m is carrying a discharge of 100 m3 sec.
The critical depth of the channel is
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. Water(γw = 9.879 kN/m3) flows with a flow rate of 0.3 m3 sec through a pipe AB
of 10 m length and of uniform cross-section. The end B is above end A and the
pipe makes an angle of 30o to the horizontal. For a pressure of 12 N/m2 at the
end B, the corresponding pressure at the end A is
Answer : Option D
Explaination / Solution:
No Explaination.
Q9. The relationship among specific yield (Sy), specific retention (Sr) and porosity (η) of an aquifer is
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. The depth of flow in a alluvial channel is 1.5 m If critical velocity ratio is 1.1 and
Manning’s n is 0.018, the critical velocity of the channel as per Kenedy’s method
is
Answer : Option B
Explaination / Solution:
No Explaination.
