Random Questions Flashcards
Scientific name for the domestic horse.
Equus caballus
Scientific name for the domestic water buffalo
Bubalus bubalis
Scientific name for the domestic pigeon
Columba livia domestica
Formula of solving the brake horse power needed to pump the water
BHP = QxH/3960xEff
Where: Q is in gal/minutes
H is in foot
Process by which egg-laying animals deposit their eggs outside their body into an external environment.
Oviposition
Process in which a mature egg (or ovum) is released from the ovary into the fallopian tube, where it may be fertilized by sperm.
Ovulation
Formula of getting the radius of the circle when angles are given.
R= a/ 2sinA
Impregnation and fertilization in animals is called
Fecundation
The process of swallowing, which involves the movement of food or liquids from the mouth to the stomach.
Deglutition
The process of eliminating waste material (feces) from the digestive tract through the rectum and anus.
Defecation
Recommended length of light hours from growing chickens to delay sexual maturity
14-16 hrs/day
A type of weed that looks similar to rice
Grass
It is known for its adaptability to wet and marshy conditions, making it a common species in wetlands and areas with abundant water, like floodplains or along riverbanks. scientific name Brachiaria mutica
Paragrass
Reduction of water levels as a result of pumping or extraction
Drawdown
The long-term decrease in the level of groundwater within aquifers, typically resulting from excessive or unsustainable extraction rates, coupled with insufficient natural recharge.
Groundwater decline
A graphical representation of the reduction in water level (drawdown) over time or distance in a well or aquifer as a result of water extraction, typically through pumping.
Drawdown curve
Progeny of crossing between different species
Hybrid
The non-toxic insecticide has this band color on its label
Green
Red- highly toxic
Yellow - moderately toxic
Blue - slightly
Green
The term head is often used to mean
Energy
Is tasks to quarantine
Government agency responsible for regulating and managing the quarantine of plants, plant products, and plant-related materials to protect the country’s agricultural industry from pests, diseases, and invasive species.
Bureau of Plant Industry (BPI)
FPA stands for
Fertilizer and Pesticide Authority in the Philippines
IRRI stands for?
International Rice Research Institute
Plants that have adapted to survive in environments with very little water, such as deserts, semi-arid regions, or other dry habitats.
Xerophytes
These plants are primarily found in moist environments due to their lack of vascular tissue, which means they rely on water for reproduction and nutrient transport.
Bryophytes
Also known as seed plants, are a diverse group of vascular plants that produce seeds as their reproductive structure. They are the most advanced and dominant group of plants on Earth, encompassing the majority of the plant kingdom.
Spermatophytes
An organization that focuses solely on product orientation without taking into account the need for customer benefits or understanding of culture involved in the exchange process suffers from marketing
Myopia
When the infectivity of the female vector is transferred to its offspring there is.
Transovarial passage
Refers to the interruption or prevention of the transmission of pathogens or other substances from a female organism to her offspring via the ovaries. This term is primarily used in the context of vector-borne diseases.
Transovarial blockage
Refers to the ability of a pathogen to persist within a vector as it undergoes different life stages (stadia) in its development.
Transtadial Passage
Opposite - Transtadial blockage
Refers to the application of liquid solutions, such as water, fertilizers, pesticides, or micronutrients, directly onto the leaves of plants
Foliage spray
A hydraulic shock which occurs when water flowing through a pipe undergoes a sudden change in velocity is called
Water hammer
Is the formation and collapse of vapor-filled bubbles in a liquid due to changes in pressure.
Cavitation
A type of water pump that uses the energy from flowing water (typically a stream or river) to pump a portion of that water to a higher elevation without the need for external power sources like electricity or fuel.
hydraulic ram
The minimum trajectory angle for sprinkler.
Answer: 10-25 degrees
Allowable percentage depletion of most crops.
Answer: 50%
Soil moisture tension with 15 atmospheres.
Answer: Permanent wilting point
Basic irrigation method for lowland farming.
Answer: Basin irrigation
Irrigation method with high cost but low operation cost.
Answer: Overhead irrigation
Laterals enter the submain from one side only to minimize the double drainage that
occurs near the submain.
Answer: Gridiron layout
Depth of shallow tube well.
Answer: 20 m or 60 ft
Equation for evapotranspiration computation.
Answer: Penman-Montieth Equation
A hydrograph with a unit volume of direct runoff for a given storm duration.
Answer: Unit hydrograph
Combination of splash and sheet erosion.
Answer: Inter rill
Irrigation components, related to flow and head.
Answer: Head gates
Uses a thin wall of plastic, butyl, concrete, steel or wood to barrier against seepage
through the wall.
Answer: Full Diaphragm Type
Standard height of an earth embankment.
Answer. (not exceeding )15 meters
Measures atmospheric humidity.
Answer. Hygrometer
An instrument used to determine the wind speed.
Answer. Anemometer
Is a constitutive equation that defines the flow of a fluid through a porous medium
Darcy’s Law
A thin film of soil layer detached and transported by water flowing on the land surface.
Answer. 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.
Answer. Plane Surveying
The recommended pressure head variation in the lateral between the first and the last
sprinkler.
Answer. 20%
Is the process of removing air from a pump and suction line by filling the pump with the liquid being pumped forcing all the air, gas, or vapor contained in the passage ways to escape.
Pump Priming
Earth Embankment. Wave height computation formula
h = 0.014 (Df2)
Df = fetch or exposure, m
Soil property which describes the ability of the soil to transmit water.
Answer. 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.
Answer. Leeward
The equation used in current meters is V= a + bN. What does a signifies?
Answer. Starting velocity
The International Soil Science Society describes sand as a soil particle with a diameter of
Answer: 0.02 mm to 2 mm
According to USDA- 0.02 mm-0.05
The locus of the elevation to which water will rise in a piezometric tube.
Answer: Hydraulic gradient
Surface irrigation method where a much smaller area is enclosed by levees
Answer: Basin Flooding
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.
Answer: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
Answer: Water Application Efficiency
The ratio between the water delivered to the farm and the water diverted from a river or reservoir
expressed in percent.
Answer: Water Conveyance Efficiency
The sum of total static head, pressure head, velocity head and friction head.
Answer: Total Dynamic Head
In Earth embankment, on structures less than 15 m high with average materials, the side slopes should
be steeper than_____on the upstream face
Answer: 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.
Answer: 2:1
Radius of throw sprinkler classification
small (less than 5 m)
medium (in between 5 m to 50 m)
large (greater than 50 m)
Classification of sprinkler based on Operating pressure
low (less than 150 kPa)
medium (between 150 kPa to 350 kPa)
high (greater than 350 kPa)
Classification of sprinkler based on Discharge
small (<0.5 m³/h)
medium (0.5 m³/h to 50 m³/h)
large (>50 m³/h)
Trajectory angle classification of sprinkler
very low (less than 10°)
low (between 10° to 25°)
normal (25° to 28°)
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
Answer: Geodetic Surveying
The survey of bodies of water made for the purpose of navigation, water supply, or sub-aqueous construction
Answer: Hydrographic Survey
Measure relative humidity in air or An instrument used to measure temperature and water in the atmosphere or Surrounding .
Hygrometer
Measurement for static velocity
Pitot tube
Measure Specific Gravity
Answer: Hydrometer
Aggregates pig in 1 birth farrowing
Answer : Litter
Pair of dice. Probability that the sum of the result is 10.
Answer: 1/12
Three lines for command.
Answer: Command area
Area where arrow cursor can be viewed.
Answer: View area
Area where the cursor is at the current position.
Answer: Drawing area
Sum of two numbers is 10. The sum is the small square number. What is the two numbers?
Answer: 5,5
A type of survey that deals with the contour of the surveyed location.
Answer. Topographic Surveying
What is the answer in this equation: i^29+i^21+i
3i
What do you call the meat from goat?
Chevon
Meat of castrated rabbit
Lapan
Meat of deer
Venison
Meat for adult sheep
Mutton
Meat of young sheep
Lamb
Meat of young cow
Veal
The response of plants to different day lengths or light periods?
Photoperiodism
Is the second important reason for cross breeding. The term is used to explain the fact
that the hybrids or crossbreeds are usually better off and more vigorous than their parents.
Heterosis
Zero is an
Integer
The amount of water the soil profile will hold when all its pore spaces are filled up with
water
Saturation point
Rectangular or cylindrical wire mesh cage filled with rock for protecting aprons, stream banks, shorelines, etc., against erosion.
Gabion
Type of irrigation with largest amount of water application
Basin
Largest water reservoir on earth
Ocean
Centrifugal pumps moves
Radially
What is the throw of a sprinkler spaced 10m by 10m if there is a 50% overlap?
7.5 m
A type of survey that delineates building.
Physical Survey
Classification of soil according to international society soil science
Gravel -greater than 2
Very coarse - between 0.2 and 2
Fine - 0.02 to 0.2
Silt- 0.002 to 0.02
Clay- 0.002
Using the float method in determining the velocity of water in a channel, the float velocity in relation the average velocity is:
Greater than the average water velocity
When the surface of an air cooling evaporator fall below 0 C, frost will form. Frost is
Air and ice
Bergeron Studies is based on
Precipitation
The following depths shall be determined to
establish sound dam foundation EXCEPT:
a. Stripping
b. Core Trench
c. Grouting
d. Flooring
D
Dam shape for non-rigid materials must be _______.
trapezoidal
volume of water expressed as percentage of the total volume of the saturated aquifer that will drawn by gravity when the water table drops due to pumping or drainage
Specific yield
Have a low labor requirement and have higher initial
costs
Boom sprayer system
It is frozen rain drops of transparent grains which forms when rainfalls through air at
sub freezing temperature.
Sleet
It is showery precipitation in form of irregular pallets of size more than 8mm. Occurs
in violent thunderstorm in which vertical current very strong
Hail
The lateral pipes are rigidly coupled and each joint of pipe is supported by a
large wheel where the lateral line forms the axle for the wheels. This is mechanically moved by
an engine mounted at the center of the line
side roll systems
Composed of portable or buried pipe with valve outlets at
intervals for attaching the portable laterals.
hand-move lateral systems
Nozzles are attached to long discharge tubes and rotated by means of a
rocker arm drive
boom sprayer system
Percentage groundwater in surface water.
33% - it must be 30.1% IIANM
In statistics, normality tests are used to determine if a data set is well-modeled by a
normal distribution and to compute how likely it is for a random variable underlying the data set
to be normally distributed.
Normalcy
A variable that answers the question “how many?”
Discrete variable
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
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
This is usually applied to large borders where the end borders are provided with
openings to accommodate free flow of water for drainage
Open-ended (border irrigation)
The _______ are used for the measurement of absolute pressure.
bellow type gauges
Instrumentation Data Collection, Reduction and
Presentation for Seepage
Daily
In hypothesis testing, which of the following statement not is true?
a. sample is a point estimate
b. confidence interval is an interval estimate
c. low margin of error: higher confidence interval
d. low margin of error: low confidence interval
C
Propeller pump’s impeller flows in a _____ manner
Axial
Determines the depth to groundwater,
groundwater flow directions, changes in water levels over time and effects of pumping tests
Water level measurement
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 lagging
Soil shall be ________ and shall contain 30% clay.
Well graded
Usually buried within the embankment dam and
connected with tube lines to the reading point on the downstream slope
Pneumatic piezometer
Lead Time of 36 hours is considered as _____.
PSWS #1
PSWS #2 – 24 hours
PSWS #3 – 18 hours
PSWS #4 & #5 – 12 hours
Philippine Storm Warning Signal (PSWS)
HYDROMETEOROLOGY: Naturally exist in 3 phases of matter
Water
DRAINAGE: A system of Drainage across contour.
intercepting or cross slope
Maximum elevation of STW – SHALLOW TUBE WELL
60 ft
High Energy Food Crops
Cereals
Pigeon Pea is high in ______.
Protein
Is the process by which an entire body of water, or parts of it, become
progressively enriched with minerals and nutrients.
Eutrophication
it is made up of the brittle crust and the top part of the upper mantle. The coolest and most rigid part of the Earth.
lithosphere
Resistance of soil to detach during soil erosion
Soil Erodibility
Female two to three years cattle
Heifer
Field that is level in all directions, encompassed by a dike to prevent runoff, and provides an undirected flow of water onto the field
basin
Water is retained until it infiltrates into the soil or the excess is drained off.
Basin irrigation
Method of irrigation which makes use of parallel border strips where the water
flows down the slope at a nearly uniform depth
border irrigation
Area of land bounded by two border ridges or dikes that guide the irrigation
stream from the inlet point of application to the ends of the strip
border strip
small channel along one part of a field that is used for distributing water in
surface irrigation
head ditch or supply ditch
Application of water by gravity flow to the surface of the field. Either the entire
field is flooded (basin irrigation) or the water is fed into small channels
(furrows) or strips of land (borders)
surface irrigation system
Rate of evapotranspiration equal to or smaller than predicted ETcrop as affected by the level of available soil water, salinity, field size or other causes
actual crop evapotranspiration
Ratio of the actual crop evpotranspiration to its potential evapotranspiration
crop coefficient
Amount of water used in producing crops which is the sum of evapotranspiration or
consumptive use plus seepage and percolation losses
crop water requirement
CWR
The total quantity of water diverted from a stream, lake, or reservoir, or removed from
the ground in order to irrigate a crop
diversion water requirement
DWR
Amount of rainwater that falls directly on the field and is used by the crop for growth
and development excluding deep percolation, surface runoff and interception
effective rainfall
ER
Amount of water required in lowland rice production which is a function of the initial
soil moisture and the physical properties of the soil
land soaking water requirement
LSR
Ratio between reference evapotranspiration (ETo) and water loss by evaporation from
an open water surface of a pan
pan coefficient
A measure of the amount of oxygen that bacteria will consume while decomposing organic matter under aerobic
conditions.
BOD
What is the most abundant microorganism found in the soil?
Bacteria
What nutrient deficiency if rice leaf are dark green?
Potassium
Mature male horse for breeding
Stud horse
The layer of the atmosphere where most of the world’s weather occurs.
A
The pressure of a confined gas at a constant temperature is tripled, what will happen to the volume?
A. The volume is constant
B. The volume will remain unchanged
C. The volume will be tripled
D. The volume will be reduced to one-third of its original value
D
If the sphere is cut at its longest diameter, what will be the shape cross-section?
A. Ellipse C. Arc
B. Circle D. Cone
B
Irrigation method most suitable for row crops in mildly sloping areas with low salinity irrigation water.
Furrow
Airmass lifting process facilitated by sunlight or heating.
Convective
Manning’s roughness coefficient for concrete lining, (standard value for concrete lining)
0.015
Penaeid shrimps undergo these larval stages in sequence before they become post larvae:
Nauplius, zoea, mysis
The Philippines ranks as the world’s largest producer of:
Seaweed
Eye ablation is a way of inducing females to spawn in :
Shrimp
Scientific name of Nile Tilapia
Oreochromis Niloticus
Scientific name of giant tiger prawn
Penaeus Monodon
Scientific name of common carp
Cyprinus Carpio
A type of terrace usually used for 25-30% slope characterized by the construction of series of platforms along
the contours cut into hill slope in a step like formation.
Bench terrace
Terracing with 9 to 24 slope
Zingg
A type of map the shows the boundaries of property lines for legal and economic purposes.
Cadastral map
Map that shows lines of similar elevation.
Contour map
When contour line from a closed figure with the highest elevation in the center, the topographic map indicates:
Mound
The fifth contour line in a series of contour lines that is visually thicker than the other lines is called:
Index line
A tachymetric method of measuring distance between two points that involves the use of invar, a bar approximately 2 meters in length.
Subtense Bar Method
Reading taken on a rod held on a point of known or assumed elevation.
Backsight
The difference in elevation of the water surface in a pond, lake, or river from which pumped water is taken, and
the water surface of the discharge canal into which the water flows from a submerged discharged pipe or the
difference in elevation between the water surface in the well and the water surface of the discharged canal.
Static head
The crop water requirement of an area grown to a certain crop refers to the amount of water used for the non-
consumptive demands such as land soaking and land preparation, and for the consumptive demands such as
evapotranspiration requirements of the crop during its entire growth period
Crop water requirement
The maximum permissible water velocity for clay loam canal surface based on PAES 603:2016.
0.80 m/s
Darcy’s law states that the flow of water through a porous medium is?
A. Proportional to the medium’s hydraulic conductivity
B. Inversely proportional to the length of flow path
C. Both a and b
D. Neither a nor b
C
A female breeding rabbit is alo referred to as
Doe
It is a young swine of either sex weighing approximately 50 kilos.
Shote
It is the process of converting soil nitrate into gaseous Nitrogen or Nitrous Oxide.
Denitrification
It is the process of converting soil nitrate into gaseous Nitrogen or Nitrous Oxide.
Ammonification
This fertilizer application method applies the fertilizer in bands or strips on one or both sides of the rowsof drilled
seeds on growing plants.
Banding fertilizer
For the same pond area, the levee requirement is shortest for:
Circular Pond
This is provided in a pipe drain to prevent seepage.
Core trench
Fertilizer having a grade of 14-14-14.
Complete fertilizer
The lack or loss of appetite for food.
Anorexia
Volume of water released from storage in an unconfined aquifer per unit horizontal area per unit decline in water
table
Specific yield
The parabola y = −x2 + x + 1 open in which direction.
A. To the right
B. To the left
C. Upward
D. Downward
D
In 220 V single phase current, what is the color of neutral wire?
A
The metal-corrosive component of biogas in small amount which smells like a rotten egg.
A. Hydrogen sulfide
Refers to the division in the digester that prevent the slurry from premature exit into the sludge/outlet tank.
Baffle board
Residue remaining after water is removed from waste material by evaporation.
Total solids
Pistillate inflorescence of the plant zea mays l., enclosed with a leaf-like protective covering known as husk.
Corn ear
Slender and greatly elongated natural filament of fiber plant
Fiber
Slimy layer found between the pulps and adhering to the parchment.
Mucilage
Based on PAES 240:2010 Fans and Blowers: In fan wheel with conical back plate how many degrees the air
stream has to make before exiting the fan housing?
Two 45 degrees turns
Based on PAES 254:2011 Abaca Stripper: What is the minimum stripping efficiency for the mechanized stripping
machine?
80%
Rice grain from which the hull, the germ, the outer bran layers and the greater part of the inner bran layers have
been removed but part of the lengthwise streaks of the bran layers may still be present on 15% to 40% of the
sample grains.
Regular milled rice
Based on PAES 230: 2005 Coconut Oil Expeller: What is the maximum temperature measured from the expeller
71°C
Uses ambient air to be heated inside or outside the heat exchanger and be used as drying air.
Dry type biomass furnace indirect fired
Sacks of cement in 50 kg
Class Bags
AA 9.5
A 7
B 6
C 5
Bags of cement in 40 kg
Class Bags
AA 12
A 9
B 7.5
C 6
