Q3.Group I contains representative stress-strain curves as shown in the figure, while Group II
gives the list of materials. Match the stress-strain curves with the corresponding materials.
Answer : Option BExplaination / Solution: No Explaination.
Q4.A 2 km pipe of 0.2 m diameter connects two reservoirs. The difference between
the water levels in the reservoir is 8 m. The Darcy Weisbach friction factor of the
pipe is 0.04. Accounting for frictional entry and exit losses, the velocity in the
pipe in (m/sec) is
Q7.One hour triangular unit hydrograph of a watershed has the peak discharge of 60
m3 /sec cm at 10 hours and time base of 30 hours. The Φ index is 0.4 cm per hour
and base flow is 15 m3 /sec.
The catchment area of the watershed is
Answer : Option CExplaination / Solution: No Explaination.
Q9.A settling tank is designed for a surface overflow rate of Assuming
specific gravity of sediment particles = 2.65, Density of water, rw = 1000 kg / m3, dynamic viscosity of water mwater = 0.001 Ns / m2 and stokes law is valid.
The approximate minimum size of particles which can be completely removed is
Answer : Option BExplaination / Solution:
To calculate minimum size of particles equating settling velocity to overflow rate,
we get