Q1.An agricultural land of 437 ha is to be irrigated for a particular crop. The base
period of the crop is 90 days and the total depth of water required by the crop is
105 cm. If a rainfall of 15 cm occurs during the base period, the duty of irrigation
water is
Answer : Option DExplaination / Solution: No Explaination.
Q2.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.
If there is rainfall of 5.4 cm in 1 hour, the ordinate of the flood hydrograph at
15th hour is
Answer : Option BExplaination / Solution: No Explaination.
Q5.A 12 mm thick plate is connected to two 8 mm thick plates, on either side through
a 16 mm diameter power driven field rivet as shown in the figure below. Assuming
permissible shear stress as 90 MPa and permissible bearing stress as 270 MPa in
the rivet, the rivet value of the joint is
Answer : Option BExplaination / Solution: No Explaination.
Q7.A precast concrete pile is driven with a 50 kN hammer railing through a height of
1.0 m with an efficiency of 0.6. The set value observed is 4 mm per below and the
combined temporary compression of the pile, cushion and the ground is 6 mm. As
per Modified Hiley Formula, the ultimate resistance of the pile is
Answer : Option BExplaination / Solution: No Explaination.
Q8.A plate load test is carried out on a 300 mm × 300 mm plate placed at 2 m below
the ground level to determine the bearing capacity of a 2 m × 2 m footing placed
at same depth of 2 m on a homogeneous sand deposit extending 10 m below
ground. The ground water table is 3 m below the ground level. Which of the
following factors does not require a correction to the bearing capacity determined
based on the load test ?
Answer : Option CExplaination / Solution: No Explaination.