Departmental (other) • 2025 • Engineering Paper-II
The primary purpose of using a power harrow instead of a rotavator is:
A)
Pulverization of heavy soils
B)
Deep inversion of soil
C)
Fine seedbed preparation with minimal soil structure damage
D)
Enhanced weed control
Option C is correct: Fine seedbed preparation with minimal soil structure damage.
Departmental (other) • 2025 • Engineering Paper-II
Draft is defined as:
A)
Vertical force during tillage
B)
Horizontal force required to pull an implement
C)
Rotary force
D)
Lateral force
Option B is correct: Horizontal force required to pull an implement.
Departmental (other) • 2025 • Engineering Paper-II
What is the main reason for using fluted roller type seed metering devices in seed drills?
A)
Accuracy for large seeds
B)
Variable seed rate for all crops
C)
Ability to handle multiple seed sizes with uniform distribution
D)
High-speed sowing capability
Option C is correct: Ability to handle multiple seed sizes with uniform distribution.
Departmental (other) • 2025 • Engineering Paper-II
Slip = 12%, travel speed = 5 km/h. Effective speed = ?
A)
4.4 km/h
B)
4.8 km/h
C)
5.5 km/h
D)
3.9 km/h
Option A is correct: 4.4 km/h.
Departmental (other) • 2025 • Engineering Paper-II
A chute channel 1.5 m wide carries v = 5.2 m/s and d = 0.2 m. Compute Fr and If the flow undergoes a hydraulic jump downstream, estimate the energy loss (in meters) across the jump using hydraulic jump theory.
Departmental (other) • 2025 • Engineering Paper-II
Which of the following is a disadvantage of Thiessen polygon method?
A)
Over-representation of dense stations
B)
Underestimation during extreme rainfall
C)
Ignores station elevation
D)
Requires continuous data
Option C is correct: Ignores station elevation.
Departmental (other) • 2025 • Engineering Paper-II
Which spectral bands are most useful in remote sensing applications related to water resource surveys?
A)
Infrared and Microwave
B)
Thermal Infrared and Ultraviolet
C)
Visible and Near-Infrared
D)
Ultraviolet and X-rays
Option C is correct: Visible and Near-Infrared.
Departmental (other) • 2025 • Engineering Paper-II
A staff reading taken at 200 m distance from level is 2.000 m. What is the angular error in minutes if collimation error is 0.005 m per 100 m?
A)
0.86'
B)
0.17'
C)
0.29'
D)
2.58'
Option B is correct: 0.17'.
Departmental (other) • 2025 • Engineering Paper-II
The total volume of direct runoff from a watershed is equal to:
A)
Area under hydrograph’s rising limb
B)
Total area under hydrograph above baseflow
C)
Peak discharge multiplied by time of concentration
D)
Product of rainfall excess and time
Option B is correct: Total area under hydrograph above baseflow.
Departmental (other) • 2025 • Engineering Paper-II
A river reach is 600 meters long. The average cross-sectional flow area is 80 m², and the wetted perimeter is 28 m. The water surface drop between upstream and downstream ends is 0.75 m. Manning’s roughness coefficient = 0.035. Using the Slope-Area Method, calculate the discharge (in m³/s).
Departmental (other) • 2025 • Engineering Paper-II
A dumpy level is tested for collimation error. Two pegs A and B are placed 60 m apart. Staff readings when instrument is 10 m from Peg A: A = 1.210 m, B = 1.325 m. Staff readings when instrument is at midpoint: A = 1.215 m, B = 1.330 m. Calculate the collimation error and determine if the instrument needs adjustment.
Departmental (other) • 2025 • Engineering Paper-II
After a 24-hour storm event, a 20-ha watershed records 80 mm of rainfall. The area is predominantly under sparse vegetation with CN = 72. Estimate direct runoff using the SCS-CN method and compute the proportion of rainfall lost to initial abstraction and infiltration.
