HIGHPRIO.1 Flashcards
Ratio of the dry weight of soil particles to the weight of an equal volume of water
a. Particle Density
b. Bulk Density
c. Real specific Density
d. Apparent specific density
c. Real specific Density
A television network is planning to air four 30-minute sitcoms namely:
“Mana-Mana”, “Okidoki”, “Tanging Ama” and “Home Along da Sea”. In how many ways can the network arrange these sitcoms in a 7-9 pm time slot if “ManaMana” should be aired third?
a. 1
b.2
c.6
d.24
c.6
For rolling areas and non-uniform distribution of gages, distance factor fixed by location of gages is used for analysis using this method.
a.Inverse Distance Ratio Method
b.Grid-Point Method
c.Isohyetal
d.Thiessen polygon
a.Inverse Distance Ratio Method
Which among the elements is a major element for plant nutrition?
a. Boron
b. Chlorine
c. Nitrogen
d. Silicon
c. Nitrogen
The process of converting water and carbon dioxide into sugar using
chlorophyll and light energy accompanied by the production of oxygen by green
plants:
a. respiration
b. oxidation
c. transpiration
d. photosynthesis
d. photosynthesis
Total water yield from a storm for a given watershed
a. Surface runoff
b. Subsurface runoff
c. Groundwater runoff
d. Runoff volume
a. Surface runoff
The recent monsoon rains have posted a nearly uniform rainfall intensity of 30 mm/hr over a 1,500-hectare watershed area in Central Luzon. If the runoff coefficient is 0.15, what is the runoff in m3/sec?
a. 18.75
b. 187.5
c. 1.87
d. 1.875
a. 18.75
Q=CIA
An artesian well has a diameter of 10 cm. Under steady state condition, what is the expected discharge (lps) if the drawdown is 2.5 m and the radius of influence is 120 m? The aquifer’s hydraulic conductivity and thickness are
75 m/day and 4 m, respectively.
a. 7.01 lps
b. 8.01 lps
c. 9.01 lps
d. 10.01 lps
a. 7.01 lps
What is the soil erosion of 10 T/ha/yr in mm/yr? Assume that the soil
bulk density is 1.2 T/m3.
a. 0.083 mm/yr c.0.83 mm/yr
b. 8.33 mm/yr d.80.33 mm/yr
c.0.83 mm/yr
An irrigation engineer, in his study, was able to establish that the
irrigation requirement of crop XYZ is 6.5 mm/day. If the rootzone depth was
estimated at 2 in. on the average, what should be the design discharge of a
canal to be able to deliver the 5-day requirement of a 10-ha farm in 24
hours?
a. 31.62 lps
b. 47.62 lps
c. 57.62 lps
d. 37.62 lps
d. 37.62 lps
The gross application depth is 93mm to irrigate a crop with a crop
coefficient of 0.9. The reference crop evapotranspiration is 6mm/day. If the
application efficiency is 70%, the irrigation interval is.
a. 10days
b.11days
c.12days
d.13days
c.12days
An irrigation engineer is to irrigate a crop planted in furrows of
100m x 100m area. It was found out that the inflow rate is 0.5 lps per 100 m. If he decides to have a furrow spacing of 50 cm and an application depth of 100 mm, determine:
The total time to irrigating the whole field.
a. 2.78 hrs c. 555.55 hrs
b. 27.8 hrs d. 2,000,000 sec
The time of irrigating each furrow.
a. 2.78 hrs c. 555.55 hrs
b. 27.8 hrs d. 2,000,000 sec
c. 555.55 hrs
a. 2.78 hrs
It is the soil moisture allowable depletion of most crops.
a. 50%
b. 20%
c. 80%
d. 100%
a. 50%
Wherein the surface is rarely wet since the water is supplied from the
soil underneath
a. Sprinkler irrigation
b. Sub-irrigation
c. Drip or trickle irrigation
d. Contour-ditch irrigation
b. Sub-irrigation
An internal condition of a seed or bud that prevents its prompt germinating
or sprouting under normal growth conditions:
a. dormancy
b. diffusion
c. germination
d. dominant
a. dormancy
The process of moisture lost of plants through the leaves:
a. germination
b. transpiration
c. oxidation
d. flowering
b. transpiration
A natural body composed of a variable mixture of broken and weathered minerals and decaying organic matter and when containing the proper amount of
air and water, supplies sustenance and gives mechanical support of plants:
a. fertilizer
b. soil
c. humus
d. mineral
b. soil
It involves controlled flooding from field ditches along the contour of
the land, which allows the water to flood down the slope between field
ditches without employing dikes or other means that guide or restrict its movement.
a.Sprinkler irrigation
b.Sub-irrigation
c.Level-border or basin irrigation
d.Contour-ditch irrigation
d.Contour-ditch irrigation
Similar to that of tertiary canals, the main systems (main and secondary
canals) also incur losses termed as conveyance losses. Seepage and
percolation losses and evaporation along the conveyance canals comprise the
conveyance losses.
a. Diversion Water Requirement (DWR)
b. Farm Water Requirement (FWR)
c. Irrigation Water Requirement (IWR)
d. Crop Water Requirement (CWR)
a. Diversion Water Requirement (DWR)
The common name for Capra hircus:
a. sheep
b. pig
c. mule
d. goat
d. goat
The ability of the stream to provide water determines the extent of the
total service area of a national irrigation system
a. Secondary canal
b. Main canal
c. Canal
d. Canal capacity
d. Canal capacity
The common name for Anser domesticus:
a. chicken
b. goose
c. duck
d. turkey
b. goose
Includes evaporation and transpiration, lumped together as
evapotranspiration.
a. Irrigation water requirement (IWR)
b. Consumptive
c. Non-consumtive
d. Crop water requirement (CWR)
b. Consumptive
The ratio of the weight of water to the dry weight of the soil
a. Soil Texture
b. Soil Structure
c. Porosity
d. dry weight basis
d. dry weight basis
Advanced stage of rill erosion. Rills when neglected develop in size and
become gullies.
a. Slip erosions
b. Wind erosions
c. Stream bank erosion
d. Gully erosion
d. Gully erosion
Used for flood forecasting and water quality studies; watershed response
time
a. Surface time
b. Time to peak
c. Recession time
d. Peak recession time
b. Time to peak
This is suitable on flat, poorly drained soils that have numerous shallow
depresssions.
a. Random ditch system
b. Double-main system
c. Interception or cross-slope system
d. Diversion or parallel ditch system
d. Diversion or parallel ditch system
Water is supplied to level plots surrounded by dikes or levees. This
method is particularly useful on fine-textured soils with low permeability,
it is necessary to hold the water on the surface to secure adequate
penetration.
a. Sprinkler irrigation
b. Sub-irrigation
c. Level-border or basin irrigation
d. Contour-ditch irrigation
c. Level-border or basin irrigation
The most efficient trapezoidal cross section.
a. width of the bottom= twice the depth
b. depth = twice the bottom width
c. width of the bottom = 4x the depth
d. width of the top=2x the sum of sides
a. width of the bottom= twice the depth
Removal of water from the road area by the use of culverts, ditches,
channels and other several structures
a. Crushed Gravel
b. Roadway Embankment
c. Course
d. Drainage
d. Drainage
The fraction of the irrigation water that must be leached through the
root zone to control soil salinity at specified level.
a. Leaching Requirement (LR)
b. Farm Water Requirement (FWR)
c. Irrigation Water Requirement (IWR)
d. Crop Water Requirement (CWR)
a. Leaching Requirement (LR)
Water horsepower divided by pump efficiency, in decimal.
a. Stochastic process
b. Water horsepower
c. Brake horsepower
d. Barrow process
c. Brake horsepower
This involves the averaging arithmetically all the rainfall depths
measured by the rain gages within the area
a. Inverse Distance Ratio Method
b. Grid-Point Method
c. Thiessen polygon
d. Arithmetic mean
d. Arithmetic mean
Any open or close ground or surface for the passage of water.
a. Water way
b. Seepage
c. Percolation
d. Watershed
a. Water way
Combination of sheet and splash erosion
a. Interrill erosion
b. Rill erosion
c. Gully erosion
d. Stream channel erosion
a. Interrill erosion
Caused by high velocity winds moving over barren land surfaces.
a. Slip erosions
b. Wind erosions
c. Coastal erosions
d. Stream bank erosion
b. Wind erosions
Soil productivity is the ability of the soil
a. to produce the desired amount of plant yield
b. supply nutrients in sufficient and balanced amounts
c. store and resist leaching nutrients
d. all of the above
a. to produce the desired amount of plant yield
The percent N, P2O5 and K2O in a fertilizer
a. fertilizer grade
b. fertilizer ratio
c. fertilizer recommendation
d. none of the above
a. fertilizer grade
Which is not a single-element or straight fertilizer?
a. Urea
b. Muriate of Potash
c. Ammonium phosphate
d. Ammonium sulfate
c. Ammonium phosphate
Primarily caused by raindrop
a. Slip erosions
b. Wind erosions
c. Coastal erosions
d. Splash/Raindrop erosion
d. Splash/Raindrop erosion
Surface runoff plus interflow
a. Base flow
b. Direct runoff
c. Groundwater runoff
d. Peak flow
b. Direct runoff
The soil type largely influences the width of bed to be used. The
furrows drain to collection ditches.
a. Random ditch system
b. Double-main system
c. Bedding system
d. Natural system
c. Bedding system
The scientific name for pigeon:
a. Columbia livia
b. Anser domesticus
c. Gallus gallus
d. Numida meleagris
a. Columbia livia
The needed for water to infiltrate into the soil, depending on the depth
of water and the soil.
a. Infiltration rate
b. Infiltration
c. Infiltration efficiency
d. None of the above
a. Infiltration rate
Irrigation systems that have relatively large service areas and are
managed by government agencies
a. Shallow Tubewell Irrigation Systems (STW)
b. On-Farm Irrigation Facilities
c. Communal Irrigation Systems (CIS)
d. National Irrigation Systems (NIS)
d. National Irrigation Systems (NIS)
The soil moisture content when plants permanently wilt. The soil moisture
tension at this point is about 15 atmospheres. Permanent wilting percentage
can be estimated by dividing the field capacity by a factor ranging from 2.0
top 2.4, with the value higher for soils with higher silt content.
a. Computation of moisture content
b. Readily available moisture (RAM)
c. Available moisture (AM)
d. Permanent wilting point (or wilting coefficient)
d. Permanent wilting point (or wilting coefficient)
Type of flow wherein the depth of flow in a prismatic channel is constant
at any point in the channel
a. laminar flow
b. uniform flow
c. steady flow
d. critical flow
b. uniform flow
Urea is one of the many form of commercial fertilizers with a typical grade
of ______?
a. 14-14-14
b. d. 0-0-60
c. 45-0-0
d. 0-30-0
c. 45-0-0
The study of soil which puts more emphasis on the origin, characteristics,
classification and description:
a. Pedology
b. Botany
c. Pathology
d. Agronomy
a. Pedology
The unit of heredity, variation, sex determination and related phenomena:
a. plasma
b. protein
c. gene
d. cell
c. gene
Lands serviced by natural irrigation or irrigation facilities. These
include land where water is not readily available as existing irrigation
facilities need rehabilitation or upgrading or where irrigation water is not
available year-round
a. Irrigators’ Association
b. Irrigation System
c. Irrigated Lands
d. Irrigable Lands
c. Irrigated Lands
This property of run-off is used for flood forecasting and water quality
analysis. It is the time where the flood flow is highest.
a. Recession time
b. Time to lag
c. Run-off time
d. Time to peak
d. Time to peak
The ratio of water beneficially used on the project, farm or field to the
amount of water delivered to the farm expressed in percent.
a. Consumptive use efficiency
b. Water storage efficiency
c. Water-use efficiency
d. Water application efficiency
c. Water-use efficiency
A type of terrace usually used for 9-24% slope characterized by breaking
the slope at certain intervals by a ridge and a flat portion to trap runoff.
a. Bench terrace
b. Zingg terrace
c. Broad-based terrace
d. Manning’s terrace
b. Zingg terrace
The ratio of the void volume to the total soil volume (unitless)
a. Soil Texture
b. Soil Structure
c. Porosity
d. dry weight basis
c. Porosity
Ratio of the bulk density of the soil with the density of water; it is
the ratio of the weight of soil to the weight of water with volume equal to
the total soil volume
a. Bulk density
b. Particle density
c. Apparent specific gravity
d. Real specific gravity
c. Apparent specific gravity
Include seepage and percolation losses.
a. Irrigation water requirement (IWR)
b. Consumptive
c. Non-consumptive
d. Crop water requirement (CWR)
c. Non-consumptive
