AREA 2 Flashcards
It refers to the composite parts of the irrigation system that divert water from natural bodies of
water such as rivers, streams and lakes. My ganitong tanong din sa AE Board Recalled 2012
Headworks
The International Soil Science Society describes sand as a soil particle with a diameter of
0.02 mm to 2 mm
The locus of the elevation to which water will rise in a piezometric tube.
Hydraulic gradient
Surface irrigation method where a much smaller area is enclosed by levees
BASIN FLOODING
The ratio of water beneficially used on the project, farm or field to the amount of water delivered to the
farm expressed in percent.
Water-use Efficiency
The ratio of water stored in the root zone during the irrigation to the water needed in the root zone
prior to irrigation, expressed in percent.
Water Storage Efficiency
The ratio between water stored in the soil root zone during irrigation and the water delivered to the farm
expressed in percent
Water Application Efficiency
The ratio between the water delivered to the farm and the water diverted from a river or reservoir
expressed in percent.
Water Conveyance Efficiency
The sum of total static head, pressure head, velocity head and friction head.
Total Dynamic Head
The water is directed to the base of the plant. Water is applied to the soil through small orifices
Drip or Trickle Irrigation
The surface is rarely wet since the water is supplied from the soil underneath. This requires complete
control of the water table so that the root zone is kept relatively free of excess water but is
continually supplied with capillary moisture during the cropping season.hindi ganito ung question,pero
my ganitong choices at sagot,basta basahin nyo n lng,marami kasing ganitong question sa type ng
irrigation.
SUB-IRRIGATION
It is accomplished by running water through small channels or furrows while it moves down or across the
slope of the field
FURROW IRRIGATION
In Earth embankment, on structures less than 15 m high with average materials, the sideslopes should
be steeper than_____on the upstream face
3:1
In Earth embankment, on structures less than 15 m high with average materials, the sideslopes should
be steeper than_____on the downstream face
2:1
Earth embankment question.What is the slope in blankets.eto lang natandaan ko.basta mgbasa na lang
kayo about sa earth embankment.
Earth embankment.waveheight computation in dam, given 50m yata, eto ung fetch or exposure in
meter(df) eto yung formula (h= 0.014(Df)2
)
Caused by the rising of warmer, lighter air in colder, denser surroundings.
convective precipitation
The process of covering the land surface with plant residues, plastic or other materials appropriate to
arrest loss of moisture through evaporation
mulching
Climate of the Philippines.(choices,,a. Type I b. Type II c.Type III d.TypeIV )hindi ko matandaan
kung type II or type III ung question dyan, basta eto na lang mga meaning nila.
Type I. Two pronounced seasons, dry from November to April and wet during the rest of the year.
Type II. No dry season with a very pronounced maximum rainfall from November to January
Type III. Seasons not very pronounced, relatively dry from November to april and wet during the
rest of the year.
Type IV. Rainfall more less evenly distributed throughout the year
Type of Sprinkler with high Pressure…….(choices, a. atomization….b…..c…d…)review nyo na lang mga
type of sprinkler
Anung level ng pressure ng sprinkle kung ang value is 200 kpa?
Anung level ng pressure ng sprinkle kung ang value is 300 kpa?
Anung level ng pressure ng sprinkle kung ang value is 500 kpa
What is the depth of water in a trapezoidal channel with a side slope of 2 and carrying a 2.5 m3
/s
water flow? The channel’s bottom width is 1.5 meters and the flowing water has a velocity of 0.8
m/s.maraming ganitong question kaya practice nyo na magcompute…
Trapezoidal weir computation,given the value of Q, b, s, R,P n,A,v.Find d? 3 question for this problem ang
binigay,same ang mga values pero hahanapin m lang yung value ng b or v.kahit d ka na mgcompute,check m
na lang sa problem na binigay..
How many sprinklers with spacing of 7m x 7m are needed to irrigate a rectangular piece of land 125 m
x 190 m if the laterals are set parallel to the longer side of the field?
486
One thousand two hundred and fifty cubic meters of water was delivered to a 10 ha farm for the month
of June in which consumptive use is estimated at 8 mm/day. The effective rainfall for the period was
150 mm. What is the irrigation efficiency? Sample prob na my ganitong katulad na question s 2013 ae
board exam.practice nyo na lang icompute yan..2 or 3 same question pero magkakaiba ang mga values na
binigay.
Given a shallow tubewell with maximum discharge of 15 lps and a total dynamic head of 7 meters.
Determine the power rating of the primemover for the pump if pump and primemover efficiencies are 60%
and 55%, respectively.2 or 3 questions but different values were given.
Determine the irrigation interval for a farm with soil root zone having a field capacity of 200 mm
and a wilting point of 105 mm. Assume that the consumptive use for June or August is 7.5 mm/day with no rainfall and the allowable moisture depletion is 75%.basta try nyo na lang icompute,my ganitong sample
na problem na binigay.
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? used the formula Q= CIA
Evapotranspiration in an 10 ha farm is 10 mm/day and percolation losses is 5 mm/day. What is the
design discharge of a canal to be able to deliver a 5-day requirement of the farm in 24 hours if irrigation
efficiency is 75%?2 questions yata ang may ganitong problem ang binigay.d ko sure ung mga values pero
ganyan yung binigay na prob….
Computation,Given yung formula,pati mga values,substitute nyo na lang,2 to 3 problem,kaso ang hirap
palabasin yung mga sagot kasi malilito ka sa mga values at unit na given,kaya try try lang hanggat
mapalabas yung result,kung hindi naman, mgwild guess na lang kung saan malapit ung napalabas nyong
sagot.basta bahala na kau kung anu like nyong gawin..hehe
The type of surveying that takes into account the true shape of the earth. These surveys are of
high precision and extend over large areas
Geodetic Surveying
The survey of bodies of water made for the purpose of navigation, water supply, or sub-aqueous
construction
Hydrographic Survey
The type of surveying in which the mean surface of the earth is considered as a plane, or
in which its spheroidal shape is neglected, with regard to horizontal distances and
directions
Plane Surveying
Consist of counting the number of steps in a required distance.
pacing
Measure relative humidity in air or An instrument used to measure temperature and water in
the atmosphere or Surrounding .,may ganitong question din sa AE Board Recalled 2010
hygrometer
Measure the intensity of direct solar radiation.dko sure ung exact words basta instrument for
measuring radiation yun.
pyrhelliometer
Measurement for static velocity.check nyo na lang yung mga different instrument and meaning para
my idea kayo..
Pitot tube
Measures Specific Gravity
Hydrometer
Area bounded by a curve y=x-4 and y^2 = x^2
find the area of the curve
Probability.. About poker, given 5 hearts at dko na alam ung isa malay k kng ilan number ng cards
na ginagamit s poker,kaw baka alam mo paturo naman?????
What do you call the phenomena where plants flowers and speeds up in seed development under
low temperature or when chilled?
vernalization
A male sheep(ram) or goat
buck
Aggregates pig in 1 birth farrowing
litter
dko sure kung meat ng goat or meat ng cattle or ox yung binigay na question
Chevon for goat, Beef for ox
Computation of fertilizers, given the the weight of 1 sack of urea yata tapos ratio, 46 0 0,tapos 14
14 14,,basta yan lang naalala k,review nyo na lang para alam nyo panu mgcompute…
If it is desired to have a maximum flow of water at any depth, the best canal crosssection to be used is the:
trapezoidal
Laminar flow has a Reynold’s Number of:
less than 1
Which of the following has the highest approximate residence time.
groundwater (deep)
Type of precipitation which results from mechanical lifting of the air mass over
mountain barriers.
Orographic Precipitation
Type of erosion in which a thin film of soil layer detached and transported by water
flowing on the land surface.
Sheet Erosion
Critical Flow is:
Fr = 1
The soil property which describes the ability of the soil to transmit water.
Hydraulic conductivity
When the water level in the pipe drops below the upper edge of the pipe or culvert
and its conduit controls, the flow becomes:
Open channel flow
It the vertical distance from the centerline of the pump to the discharge water level.
Static discharge head
A system of aquaculture in which the waste produced by farmed fish or other
aquatic animals supplies nutrients for plants grown hydroponically, which in turn
purify the water.
Aquaponics
It is also called the vadose zone.
unsaturated zone
An artesian well is an example of:
Confined Aquifer
What color in PAG-ASA’s color coded rainfall advisory system which indicates that a
possibility of storm surge of 0.5 m up to 1 m high might likely to occur?
yellow
What color in PAG-ASA’s color coded rainfall advisory system which indicates that a
torrential rainfall more than 30 mm within one hour might likely to occur?
red
How many distinct permutations can be made from the letters of the word infinity?
3360
What is the probability can be computed in an ordinary deck of cards selecting a
card of heart?
1/4
The infiltration equation based on the exhaustion process is the
Horton
The most common irrigation method used for low land farming.
basin
What is the maximum suction head of a tubewell?
60 ft
It is the science of the movement of groundwater.
Hydrogeology
A type of sprinkler irrigation known for its high initial cost but low labor cost.
overhead sprinkler
An instrument that measures the intensity of sunshine radiation received at ye earth
surface.
pyrheliometer.
A submain is laid in a depression and the laterals join the submain from each side
alternately. The land along the submain is double drained, but since it is in a
depression, it is probably requires more drainage
herringbone
A type of cropping system where in different crops are palnted in an area one after
the other each season.
relay cropping.
A division in the biogas digester that prevents slurry from premature exit into
sludge/outlet tank
baffle board
The ratio of water beneficially used on the project, farm of field to the amount of
water delivered to the farm expressed in percent.
water use efficiency
The locus of the elevation to which water will rise in a piezometric tube.
hydraulic gradient
It is accomplished by running water through small channels or furrows while it
moves down or across the slope of the field
Furrow Irrigation
Allowable percentage depletion of most crops.
50%
Determine the side slope angle of an unlined canal with slope ratio z of 2:1 (run:
rise)?
26.6 deg
Computation of moisture content using these formulas:
mc = FC – % AM used x (FC-PWP) or
mc = PWP + % AM retained x (FC-PWP)
Plant stem blast is commonly caused by:
FUNGI
Which of the following has the highest bearing capacity?
ROCK
Meat from goat
CHEVON
Type of terrace that is used for 9-24% slope.
Zing or conservation
Type of flow which is the same at every section of the prismatic channel.
uniform flow
It is a geologic formation which transmits water at a rate insufficient to be
economically developed for pumping.
aquiclude
AQUACULTURE: The rearing of fishes at ocean is referred as ______.
mariculture
HYDROMETEOROLOGY: Bergeron Studies is based on ______
Precipitation
RAINWATER & RUNOFF MANAGEMENT: The following depths shall be determined to
establish sound dam foundation EXCEPT:
Flooring
RAINWATER & RUNOFF MANAGEMENT: Dam shape for non-rigid materials must be _______.
trapezoidal
HYDROMETEOROLOGY: Precipitation of less than 0.5 mm at 1 mm/hr intensity.
drizzle
PRESSURIZED IRRIGATION SYSTEM: Application rate at 15 mm/hr of sprinkler categorize as:
medium
PRESSURIZED IRRIGATION SYSTEM: Have a low labor requirement and have higher initial
costs
boom sprayer system
HYDROMETEOROLOGY: Percentage groundwater in surface water
33%
RAINWATER & RUNOFF MANAGEMENT: Given soil volume of 1200 m3
at void ratio of 60%.
1200X60% = 720m3
STATISITCS: A variable that answers the question “how many?”
discrete variable
naming scale
nominal
variable whose value is obtained by measuring
continuous
A variable whose values are ordered
cardinal
IRRIGATION: This type of furrow irrigation shall increase the length that the water must
travel to reach the end of irrigation run thus, reducing the average slope and velocity of the
water.
zigzag
RAINWATER & RUNOFF MANAGEMENT: Instrumentation Data Collection, Reduction and
Presentation for Seepage
daily
STATISTICS: In hypothesis testing, which of the following statement not is true?
low margin of error: higher confidence interval
IRRIGATION: Propeller pump’s impeller flows in a _____ manner
axial
RAINWATER & RUNOFF MANAGEMENT: Uses current and potential electrodes in an
uncased well to measure the resistivities of the surrounding media wherein the variation of its
traces is related to depth
Resistivity Logging
RAINWATER & RUNOFF MANAGEMENT: Soil shall be ________ and shall contain 30% clay.
well-graded
RAINWATER & RUNOFF MANAGEMENT: Usually buried within the embankment dam and
connected with tube lines to the reading point on the downstream slope
Pneumatic piezometer
HYDROMETEOROLOGY: Groundwater moves faster in
Gravel/sand
HYDROMETEOROLOGY: Lead Time of 36 hours is considered as _____.
PSWS #1
STATISTICS: Probability of two dice to have a sum of 10 after rolled.
1/12
HYDROMETEOROLOGY: Naturally exist in 3 phases of matter
water
DRAINAGE: A system of Drainage across contour.
intercepting or cross slope
HYDROMETEOROLOGY: Maximum elevation of STW – SHALLOW TUBE WELL
60 ft
CROP SCIENCE: High Energy Food Cops
Cereals
CROP SCIENCE: Pigeon Pea is high in ______.
protein
Rigid outer part of the earth.
litosphere
SWCE: Soil Erodibility Definition
resistance of soil to detach during soil erosion
female two to three years
heifer
STRUCTURES: Access alley width at _____ m
3
HYDROMETEOREOLOGY: Groundwater is also known as ______.
Phreatic Water
CROP SCIENCE: Rice Blast Caused by ______.
fungi
OPEN CHANNEL HYDRAULICS: The ________ shaped channel is most efficient canal.
Trapezoidal
TRIGONOMETRY: Compute cos (8/3 pi)
-1/2
HYDROMETEOREOLOGY: Highest residence time
Groundwater: deep
SOIL SCIENCE: 1 mm diameter soil particle
coarse sand
HYDROMETEOREOLOGY: Direct Runoff was made of ________.
Surface runoff, overland flow & channel precipitation
HYDROMETEOREOLOGY: Hydrograph was made of _________.
Overland flow, interflow & baseflow
PRESSURIZED IRRIGATION SYSTEM: Low Application Rate irrigation
Sprinkler
RAINWATER & RUNOFF MANAGEMENT: Depth in SFR – Small Farm Reservoir
0.75 m
DRAINAGE: Artificially produced in the subsoil with digging a trench from the surface
mole drain
SURVEYING: A sign by extending both arms horizontally and moves up or down.
All Right
HYDROMETEOREOLOGY: USWB inner and outer tube difference in size.
10 times
Irrigation enclosed by dikes.
basin irrigation
frequently existing data set
mode
It is the term use to describe the process of removing plants with unwanted
characteristics, small and undesirable plants.
weeding
The most common irrigation method used for low land farming
basin
A type of sprinkler irrigation known for its high initial cost but low labor cost.
overhead sprinkler
Darcy equation is used only to what type of flow?
laminar
It is the science that deals with the study of weather, water movement (blah
blah blah)
hydrometeorology.
An instrument used to determine the wind speed
anemometer.
An instrument that measures the intensity of sunshine radiation received at ye
earth surface.
pyrheliometer.
Almost 47% of the total drainage goes to what part of the world?
atlantic ocean
Ground water is also known as:
capillary water
It refers to the composite part of the irrigation system that divert water from
natural bodies of water such as river, stream and lakes.
headwork
A submain is laid in a depression and the laterals join the submain from each
side alternately. The land along the submain is double drained, but since it is in a
depression, it is probably requires more drainage.
herringbone
A type of cropping system where in different crops are palnted in an area one
after the other each season.
relay cropping.
Used if the entire area is to be drained and is usually more economic. Laterals
enter the submain from one side only to minimize the double drainage that occurs
near the submain
Gridiron
How many ft of water are there in a atm?
33.93
It is the term used to piglets in one farrowing.
litter
It consists of filling the casing with water so that air trapped in the pump does
not hinder its operation and reduce efficiency
priming
According to USDA soil classification, 0.1 mm is categorized as
fine sand
A type of irrigation system where water is delivered just below the root of
plants (something like that)
Sub-irrigation
Uses legumes to cover…
buffer
A method use to reduce soil erosion which follows the contour……
contour
An earth embankment type constructed of relatively homogenous soil material
and wither keyed into the impervious foundation stratum or is constructed with an
upstream blanket impervious materials. This type is limited to low fills and to sites
having sufficient volume of satisfactory fill materials available
core/zone
Property of an aquifer…….blah
hydraulic conductivity
A type of survey that deals with the contour of the surveyed location.
topographic survey
A type of survey that delineates building……
physical survey,
An instrument used to determine the distance, angle……
engineers transit
Determine the power develop of a pump given Q____gpm and H___ft
*use formula P=QH/33,000
Given FC, PWP, AM, find Mc
*use formula Mc= (FC-PWP)AM + PWP
A method of measuring evaporation that uses climatological data….
Blaney-Cridle
The minimum trajectory angle for sprinkler
10-25 degrees
Allowable percentage depletion of most crops
50%
Soil moisture tension with 15 atmospheres.
Permanent wilting point
The ratio of water beneficially used on the project, farm or field to the amount of water
delivered to the farm
water use efficiency
Basic irrigation method for lowland farming.
basin irrigation
Irrigation method with high cost but low operation cost
Irrigation method with high cost but low operation cost
Irrigation method wherein water is directed to the base of the plant and is applied to the
soil through small orifices
Drip or trickle irrigation
Laterals enter the submain from one side only to minimize the double drainage that
occurs near the submain
Gridiron layout
Depth of shallow tube well.
20 m or 60 ft
Equation for evapotranspiration computation
Penman-Montieth Equation
Precipitation results from mechanical lifting of air mass over mountain barriers.
Orographic rainfall
Travels over the ground and through the channels to reach the outlets
runoff
A hydrograph with a unit volume of direct runoff for a given storm duration.
unit hydrograph
Combination of splash and sheet erosion
inter rill
Flow greater than the critical flow
Supercritical flow
Type of flow wherein the discharge or flow in a prismatic channel is constant with respect
to time.
steady flow
irrigation components, related to flow and head.
head gates
Uses a thin wall of plastic, butyl, concrete, steel or wood to barrier against seepage
through the wall.
Full Diaphragm Type
Referred to as rain fall.
precipitation
Standard height of an earth embankment
(not exceeding )15 meters
An instrument used to determine the wind speed.
anemometer
Measures atmospheric humidity
Hygrometer
A mathematical expression for the macroscopic flow of water through a porous system.
(not exactly the same question, pero parang ganyan yun)
darcy’s law
The composite parts of the irrigation system that divert water from natural bodies of
water such as rivers, streams, and lakes
Headworks
A thin film of soil layer detached ad transported by water flowing on the land surface.
Sheet Erosion
The type of surveying in which the surface of the earth is considered as a plane, or in
which its spheroidal shape is neglected, with regard to horizontal distances and
directions.
Plane Surveying
The recommended pressure head variation in the lateral between the first and the last
sprinkler.
20%
Earth Embankment. Wave height computation
(h = 0.014 Df^2)
Df = fetch or exposure, m
Soil property which describes the ability of the soil to transmit water
Hydraulic
Conductivity
What do you call the mountain side, with reference to the wind direction in which the air
masses passing through it is cold and dry.
Leeward
The equation used in current meters is V= a + bN. What does a signifies?
Starting
velocity
Pair of dice. Probability that the sum of the result is 10.
1/6
Radius of circle x2 + y2 + 8x - 4y = 0
4.47
Three lines for command
Command area
Area where arrow cursor can be viewed
View area
Area where the cursor is at the current position
Drawing area
Sum of two numbers is 10. The sum is the small square number. What is the two numbers?
5,5
A type of survey that deals with the contour of the surveyed location.
Topographic Surveying
