Departmental (other) • 2025 • Engineering Paper-II
Sheet erosion typically occurs when—
A)
Strong winds lift large rocks
B)
Thin layers of topsoil are washed away uniformly by rainfall
C)
Water forms deep channels in soil
D)
Glaciers melt rapidly
Option B is correct: Thin layers of topsoil are washed away uniformly by rainfall.
Departmental (other) • 2025 • Engineering Paper-II
The satellite sensors used in remote sensing detect:
A)
Gravitational energy
B)
Electromagnetic radiation
C)
Sound waves
D)
Thermal convection currents
Option B is correct: Electromagnetic radiation.
Departmental (other) • 2025 • Engineering Paper-II
The object of surveying is to determine:
A)
Volume of materials
B)
Relative positions of points on the earth’s surface
C)
Type of soil
D)
Direction of wind
Option B is correct: Relative positions of points on the earth’s surface.
Departmental (other) • 2025 • Engineering Paper-II
In installing a rain gauge network, the relevant Indian standard (IS:4986 & IS: 4987) recommend that:
A)
The density of gauges should be more in plains than in hills
B)
In regions having average elevations of 1000m, at least one station in 130km2 is desired
C)
At least 50% of rain-gauge stations should be or recording type
D)
At least 10% of station should be of recording type
Option B is correct: In regions having average elevations of 1000m, at least one station in 130km2 is desired.
Departmental (other) • 2025 • Engineering Paper-II
The chemical suitable for use as a water evaporation inhibitor:
A)
Cetyl alcohol
B)
Butyl alcohol
C)
Methyl alcohol
D)
Ethyl alcohol
Option A is correct: Cetyl alcohol.
Departmental (other) • 2025 • Engineering Paper-II
A rainfall of 1.2cm occurred in a 6h storm. If the phi index was 0.25cm/h, the rainfall excess of this storm was:
A)
0.3 cm
B)
0.0
C)
1.5 cm
D)
1.2 cm
Option B is correct: 0.0.
Departmental (other) • 2025 • Engineering Paper-II
Remote sensing primarily involves the acquisition of information about an object or phenomenon:
A)
By physical contact
B)
Without physical contact
C)
Through underground surveys
D)
By manual field inspection
Option B is correct: Without physical contact.
Departmental (other) • 2025 • Engineering Paper-II
What is the main principle behind biological methods of soil erosion control?
A)
Use of mechanical barriers
B)
Reducing slope steepness
C)
Using vegetation to protect soil
D)
Diverting surface water
Option C is correct: Using vegetation to protect soil.
Departmental (other) • 2025 • Engineering Paper-II
Gully erosion is characterized by—
A)
Small rills forming on farmland
B)
Deep channels carved by running water
C)
Wind removing loose topsoil
D)
Ice dragging rocks along valley floors
Option B is correct: Deep channels carved by running water.
Departmental (other) • 2025 • Engineering Paper-II
Contour farming is effective because it—
A)
Increases slope gradient
B)
Reduces soil fertility
C)
Slows runoff and increases infiltration
D)
Encourages rill formation
Option C is correct: Slows runoff and increases infiltration.
Departmental (other) • 2025 • Engineering Paper-II
Which vegetative measure helps protect the soil surface from raindrop impact?
A)
Mulching
B)
Deep ploughing
C)
Contour trenching
D)
Subsoiling
Option A is correct: Mulching.
Departmental (other) • 2025 • Engineering Paper-II
Which of the following biological practices helps in controlling gully erosion?
A)
Grassing gullies
B)
Building retaining walls
C)
Constructing contour bunds
D)
Check dams
Option A is correct: Grassing gullies.
Departmental (other) • 2025 • Engineering Paper-II
Explain the terms ‘percolation’, ‘interception’, ‘transpiration’, ‘ runoff’, ‘residence time’.
Departmental (other) • 2025 • Engineering Paper-II
The principle of an optical square is based on:
A)
Law of reflection
B)
Law of refraction
C)
Trigonometric principle
D)
Law of sines
Option A is correct: Law of reflection.
Departmental (other) • 2025 • Engineering Paper-II
The working principle of a prismatic compass is based on:
A)
Reflection
B)
Refraction
C)
Magnetic bearing
D)
Optical axis
Option C is correct: Magnetic bearing.
Departmental (other) • 2025 • Engineering Paper-II
Viewing watershed as a system, which one of the following assumption is made in the unit graph theory?
A)
Non-linearity
B)
Both linearity and time variance
C)
Both time invariance and non-linearity
D)
Both linearity and time invariance
Option D is correct: Both linearity and time invariance.
Departmental (other) • 2025 • Engineering Paper-II
The branch of surveying that deals with large areas on the earth’s surface considering curvature is:
A)
Plane surveying
B)
Hydrographic surveying
C)
Geodetic surveying
D)
Cadastral surveying
Option C is correct: Geodetic surveying.
Departmental (other) • 2025 • Engineering Paper-II
What are the conditions for occurrence of precipitation?
Departmental (other) • 2025 • Engineering Paper-II
How much an effective rainfall of a mean annual runoff of 1m3/s from a catchment of area of 10km2 represents?
Departmental (other) • 2025 • Engineering Paper-II
The Double Mass Curve is adopted to
A)
estimate the missing data
B)
obtain intensities of rainfall at various durations
C)
To obtain the amount of storage needed to maintain a demand pattern
D)
To check the consistency of data
Option D is correct: To check the consistency of data.
Departmental (other) • 2025 • Engineering Paper-II
The minimum number of satellites required to determine a 3D position (latitude, longitude, elevation) is:
A)
2
B)
3
C)
4
D)
5
Option C is correct: 4.
Departmental (other) • 2025 • Engineering Paper-II
The use of satellite imagery helps in identifying:
A)
Groundwater recharge zones and drainage patterns
B)
Underground oil reservoirs
C)
Atmospheric ozone concentration
D)
Forest tree height only
Option A is correct: Groundwater recharge zones and drainage patterns.
Departmental (other) • 2025 • Engineering Paper-II
Humidity is measured by:
A)
Hygrometer
B)
Hyetometer
C)
Hydrometer
D)
Pyrheliometer
Option A is correct: Hygrometer.
Departmental (other) • 2025 • Engineering Paper-II
The level line is:
A)
Tangent to the earth’s surface
B)
Parallel to the line of sight
C)
A curved line equidistant from the earth’s center
D)
A straight line joining two points
Option C is correct: A curved line equidistant from the earth’s center.
Departmental (other) • 2025 • Engineering Paper-II
The most accurate method of measuring distances is:
A)
Chain survey
B)
Taping
C)
EDM (Electronic Distance Measurement)
D)
Pacing
Option C is correct: EDM (Electronic Distance Measurement).
