HIGHPRIO.3 Flashcards
Vulnerability or susceptibility of the soil to erosion. It is a function
of both the physical properties of the soil and land management practices.
a. Erodibility
b. Erosivity
c. Susceptibility
d. Vulnerability
a. Erodibility
It is the simplest piece of overhead irrigation equipment and is commonly
used in small-scale upland farming.
a. Hose pipe
b. Watering can
c. Drainage
d. Overhead irrigation
b. Watering can
An imaginary line of constant elevation on the surface of the ground.
a. Horizontal interval
b. Vertical Interval
c. Contour map
d. Contour line
d. Contour line
The process of covering the land surface with plant residues, plastic or
other materials appropriate to arrest loss of moisture through evaporation
a. Cropping systems
b. Contour cultivation
c. Mulching
d. Strip cropping
c. Mulching
The ratio of the volume of water to the total soil volume
a. Soil Texture
b. Volume basis or volumetric MC
c. Porosity
d. dry weight basis
b. Volume basis or volumetric MC
The Scientific name for onion:
a. Raphanus sativus
b. Daucus carota
c. Allium sativum
d. Allium sepa
d. Allium sepa
A major irrigation system managed by the national irrigation
administration
a. Communal irrigation system
b. Secondary canal
c. Main canal
d. National irrigation system
d. National irrigation system
Expresses the relationship between speed in rpm, discharge in gpm, and
head in feet.
a. Static head
b. Specific speed
c. Drawdown
d. Characteristic curve
b. Specific speed
Provide record of the highest stage observed at a stream
a. Float method
b. Float type water stage recorder
c. Bubbler gage
d. Crest stage gage
d. Crest stage gage
An association of farmers within a contiguous area served by a national
irrigation system or communal irrigation system
a. Irrigators’ Association
b. Irrigation System
c. Irrigated Lands
d. Irrigable Lands
a. Irrigators’ Association
The ratio between the water delivered to the farm and the water diverted
from a river or reservoir expressed in percent
a.Water storage efficiency
b.Water-use efficiency
c.Water application efficiency
d.Water conveyance efficiency
d.Water conveyance efficiency
Consists of carrying out agricultural operations very nearly on the
contour. It reduces the velocity of overland flow and retards soil erosion
a.Cropping systems
b.Contour cultivation
c.Mulching
d.Strip cropping
b.Contour cultivation
Is a graphical representation of the instantaneous runoff rate against
time. The area under the hydrograph gives the runoff volume
a.Hydrograph
b.Pearson hydrograph
c.Log-Normal Distribution hydrograph
d.Normal hydrograph
a.Hydrograph
An irrigation system that is managed by a bonafide irrigators’
association
a. Headworks
b. Communal irrigation system
c. Shallow tubewell
d. National irrigation system
b. Communal irrigation system
Record the pressure required to maintain a small flow of gas from an
orifice submerged in the stream
a. Float method
b. Float type water stage recorder
c. Bubbler gage
d. Crest stage gage
c. Bubbler gage
Planting different crops simultaneously in the same field at the same
cropping season.
a. Graded terrace
b. Relay cropping
c. Multi cropping or mixed cropping
d. Strip cropping
c. Multi cropping or mixed cropping
Discharge is not constant with respect to time
a. Spatially variable flow
b. Turbulent flow
c. Laminar flow
d. Unsteady flow
b. Turbulent flow
The lateral flow of liquid through porous media; the lost of water from
irrigation canals.
a. Soil conservation
b. Seepage
c. Percolation
d. Watershed
b. seepage
A term adapted to measures utilizing both or in combination with the
biological and engineering measures.
a. Culvert
b. Vengineering
c. Drop structures
d. Flume
b. Vengineering
Establishment of natural waterways or construction of canals and planting
it with grasses to make it stable and arrest soil erosion
a. Riprap
b. Grassed waterways
c. Check dams or weirs
d. Farm Ponds / Water Impounding Dams
b. Grassed waterways
Landslides and slips due to saturation of steep hills and slopes.
a.Slip erosions
b.Wind erosions
c.Coastal erosions
d.Stream bank erosion
a.Slip erosions
The scientific name for sheep:
a. Capra hircus
b. Sus domesticus
c. Bubalus Bubalis
d. Ovis aries
d. Ovis aries
Moisture content present in the soil when gravitational water has been
removed is called:
a. wilting point
b. field capacity
c. unavailable moisture
d. nota
b. field capacity
75% of available moisture is called:
a. readily available moisture
b. hygroscopic water
c. permanent wilting point
d. nota
a. readily available moisture
The water right based on the concept first time, first in right:
a. Right of way
b. Appropriation Act
c. General Appropriation
d. nota
b. Appropriation Act
The volume of water that can be stored in or released from an aquifer per
unit horizontal area per unit change in hydraulic head is
a. specific storage
b. specific yield
c. storage coefficient
d. transmissivity
c. storage coefficient
The lateral movement of water in the soil:
a. seepage
b. drainage
c. irrigation
d. flooding
a. seepage
Development of deep well by compressed air is best suited for ___wells.
a. big
b. small*
c. open
d. nota
b. small*
The mass per unit volume of the soil particles is:
a. specific gravity
b. porosity
c. soil density
d. void ratio
c. soil density
The ratio of the volume of pores to the volume of solid is:
a. void ratio
b. porosity
c. specific gravity
d. soil density
a. void ratio
Water held by forces of surface tension and continuous films around the
soil particles is:
a. capillary water
b. hygroscopic water
c. gravitational water
d. soil water
a. capillary water
Water held tightly to the surface of soil particle by adsorption
forces is:
a. capillary water
b. hygroscopic water
c. soil water
d. gravitational water
b. hygroscopic water
It is the sheet of water which overflows a weir:
a. Napped
b. weir pond
c. weir crest
d. weir gauge
a. Napped
Sprinkler type with operating pressure from 20-40 psi:
a. high pressure
b. low pressure
c. medium pressure
d. nota
b. low pressure
The type of erosion that takes place in small channels which cannot be
obliterated by tillage operations is called
a. sheet
b. rill
c. interrill
d. gully
d. gully
An appurtenance to the pipeline which permits the passage of air to orfrom the pipeline.
a. surge
b. water hammer
c. vent
d. gate
c. vent
Barrier constructed to hold water back and raise its level.
a. channel
b. dam
c. well
d. weir
b. dam
The volume of water flowing each second, measured in m3/sec.
a. stream
b. discharge
c. velocity
d. cross-sectional area
b. discharge
Term for solar radiation received at the earth’s surface
a.insolation
b.illuminance
c.radiation
d.reflectiion
a.insolation
The channel connected to the main canal which distributes irrigation to
specific areas
a. Headworks
b. Communal irrigation system
c. Shallow tubewell
d. Secondary canal
d. Secondary canal
The minimum distance from the center of the lone pumped well wherein no
drawdown will be observed is the __________________.
a. well radius
b. radius of interference
c. radius of influence
d. drawdown curve
c. radius of influence
On the weather map, lines representing points of equal pressure is
called.
a.Isohyets
b.Contour lines
c.Isobars
d.None of the above
c.Isobars
- Planting different crops simultaneously in the same field at the same cropping season.
a. Mixed/multiple cropping
b. Relay cropping
c. Inter cropping
d. Strip cropping
a. Mixed/multiple cropping
Vigna radiata is commonly known as:
a. mungbean
b. castor bean
c. rice bean
d. peanut
a. mungbean
For the most efficient trapezoidal cross-section:
a. width of the bottom=1.5 of the depth
b. width of the top=sum of sides
c. width of the bottom=twice the depth
d. width of the to=1/2 the sum of sides
c. width of the bottom=twice the depth
A conveyance structure used to turn conduits of varying sizes and shapes.
a. cut off
b. transition
c. weir
d. chute
b. transition
Surface irrigation method where a much smaller area is enclosed by
levees.
a. trickle irrigation
b. drip irrigation
c. basin flooding
d. flood routing
c. basin flooding
That part of surface runoff that flows over the surface towards the
stream channel
a.Base flow
b.Direct runoff
c.Overland flow
d.Peak flow
c.Overland flow
Erosion of stream banks by flowing water.
a.Slip erosions
b.Wind erosions
c.Coastal erosions
d.Stream bank erosion
d.Stream bank erosion
A vertical section to the soil mass where significant changes in the soil
texture and structure with depth are observed
a.Soil profile
b.Soil structure
c.Soil texture
d.Soil taxonomy
a.Soil profile
The moisture content of the soil when tension is 1/3 atmosphere.
a.Field capacity
b.Saturation point
c.Wilting point
d.None of the above
a.Field capacity
This refer to the additional height or depth of hydraulic structures
a. Flash board
b. Free board
c. Jump height
d. Critical dept
b. Free board
The rational method of determining runoff is applicable to.
a.Small watershed
b.Large watershed
c.Watershed with good vegetation
d.All watershed
c.Watershed with good vegetation
