2019 Flashcards
Pump used on shallow tube well
centrifugal
Flow of water to the propeller of the propeller pump
axial
CENTRIFUGAL - RADIAL
Critical Flow
Fr = 1
SUBCIRITCAL, Fr<1
SUPERCRITICAL, Fr>1
Similar to stone check dams however the stones in this case are placed on rectangular wire mesh
GABION
Used for 9-24% slope
zing or conservation or bench terrace
Used for 25-30%
Bench Terrace
Efficiency of Spark Ignition Engine
25-30%
Electric Motor 50-90%
Gasoline Engine 25-30%
Diesel Engine 30-36%
Air requirement for gasification of agricultural waste – Stoichiometric air
30-40%
is a government agency tasked with licensing contractors for public and private construction.
PCAB - Philippine Contractors Accreditation Boards
Type of ionizing radiation with 2 neutrons and 2 protons
alpha
Connects the web members and the top members
collar
CPES rating during construction for environmental, safety and health
0.07
Workmanship - 0.40
Materials - 0.30
Time - 0.15
Resources Deployment - 0.05
Facilities - 0.03
Component of a structure that transfer the loads axially to the foundation
COLUMN
In what structures can a civil engineer, an architect or an agricultural engineer prepare, sign and seal?
farmhouse
non-destructive method used to determine the strength of concrete where rubber ball used to strike the surface and the distance of rebound is m
rebound ball hammer
is standardized under the ASTM International test procedure used to determine a material’s impact resistance (toughness), or the material’s tendency to resist breaking when subjected to a sudden force or impulse.
IZOD test
Other term for vadose zone
unsaturated zone
PHREATIC- SATURATED
Other term for saturated zone
phreatic zone
VADOSE - UNSATURATED
What is the instrument used to determine total direct solar radiation
pyrheliometer
What is the study of ground water?
hydrogeology
What color indicates storm surge height of 0.5-1.0 m?
YELLOW ALERT
orange alarm means that storm surge of one to three meters is expected.
RED- indicates that a torrential rainfall more than 30 mm within one hour
indicates a maximum sustained winds of 61 kph
tropical depression
tropical storm - means wind speeds of 62-117 kph
typhoon - means 118-220 kph
super typhoon - packs a maximum sustained winds of more than 220 kph
Rice blast is caused by?
fungus called Pyricularia oryzae
type of surface irrigation where water is applied to the basin through a gap in the perimeter dike or adjacent ditch; water is retained until it infiltrates into the soil or the excess is drained off
basin irrigation
method of irrigation where water runs through small parallel channels as it moves down the slope of the field
furrow irrigation
Is a special type of furrow irrigation, used for broadcast crops. Corrugations are small hills pressed into the soil surface. The application of this method is limited
corrugated 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
facility withdrawing water from irrigation sources to the main canal in the volume and time required for irrigation in accordance with the relevant water use schedule.
headworks
Type of gasifier that has the ability to gasify wet fuel
updraft
Minimum biogas content to run an ICE
65%
Organization for manufacturing and distributing agricultural machineries
AMMDA - agricultural machinery manufacturers and distributors association.
Agency responsible for Mechanization Research and Development
PhilMech - philippine center for postharvest development and mechanization
the state of permanent displacement of the stems from their upright position, which is induced by external forces exerted by wind, rain, or hail. It may culminate in the plants being laid flat on the ground and sometimes involve breakage of the stems.
grain lodging
Density of diesel
0.845 kg/L
Density of gasoline fuel
0.7 kg/L
Trademark is an example of ________ asset
intangible
Rice hull gasifier efficiency normally ranged from:
50-70%
The burning efficiency of rice hull furnaces is between:
95%
The thermal efficiency of rice hull furnaces is between
40 - 70%
Situation where a change in price does not lead to change in demand.
perfectly ineslatic
Seed produced from the Registered Seed by accredited seed producers and distributed to farmers for commercial production.
certified seeds
The wind flows on a 2m-diameter rotor at a rate of 2 m/s. It suddenly flows at 4 m/s, what would be the power output of the windmill?
8 times
The greater the number of blades of the wind machine, _ the torque.
higher
The ratio of the heat released by the fuel of a heated-air mechanical dryer to the theoretical heat available from the fuel.
combustion efficiency
The most recently developed system of harvesting and threshing of rice is:
stripping
Which of the following is not measured in calibrating a sprayer?
application rate
Warranty period for agricultural machine parts from the purchase of the machine.
6 months
tillage to partially bury and thereby prevent movement of materials such as plant residues or artificial mulches
anchoring
tillage which forms a ridge and furrow soil configuration.
bedding (listing, ridging)
operation which pulverizes, smooths, and firm the soil.
harrowing
operation that cuts and throws the soil away from the base of plants.
off-barring
deep tillage, below 350 mm for the purpose of loosening soil for root growth and/or water movement.
subsoiling
any support provided to a customer after the product or service has already been purchased. Companies use after-sales support as a business strategy as it typically leads to higher customer satisfaction, brand loyalty, and even word-of-mouth-marketing.
after-sale service
It the vertical distance from the centerline of the pump to the discharge water level.
static discharge head
An artesian well is an example of:
confined aquifer
A type of cropping system where in different crops are planted in an area one after the other each season.
relay cropping
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 or hydraulic grade line
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
A stream that provides water to the water table is termed
influent
A stream that carries water a considerable portion of the time, but that ceases to flow occasionally or seasonally because bed seepage and evapotranspiration exceed the available water supply.
intermittent stream
A stream channel that carries water only during and immediately after periods of rainfall or snowmelt.
ephemeral stream
A stream that contains water at all times except during extreme drought.
perennial stream
when the water table intersects the stream channel, water from water table moves toward the stream
effluent stream
What is the minimum methane content of biogas in order to operate biogas-fueled generators?
65%
Type of biogas plant which have aerobic conditions in the upper layers and anaerobic processes occurring in the bottom layers, especially in the settled solids?
facultative
Ratio of the weight of corn kernels that fell out from the machine during shelling operation to the weight of the total corn kernel input of the sheller, expressed in percent.
scattering loss
The wastewater, either treated or untreated, discharged from a reservoir, basin or treatment plant.
effluent
The minimum frequency of quantity sampling for moisture content determination during test.
12 samples
The percent of moisture content of test materials for peanut sheller.
12%-14% WB
It is the layer of aggregate, soil-treated aggregate, treated soil, or soil aggregate that rests upon the Subbase or if no Subbase, upon the sub-grade. Treatment may include application of chemical-based soil additives such as soil-stabilizers and/or any approved method.
base course
It is a production system that sustains the health of soils, ecosystems and people. It relies on ecological processes, biodiversity and cycles adapted to local conditions, rather than the use of inputs with adverse effects.
organic agriculture
It is the production of food, fiber, or other plant or animal products using farming techniques that protect the environment, public health, human communities, and animal welfare
sustainable agriculture
It is a positively charged particle made up of two protons and two neutrons and released by a radioactive nucleus.
alpha particle
In Autocad, it creates copies of objects arranged in a pattern. You can create copies of objects in a regularly spaced rectangular, polar, or path.
array
In lateral and sub-lateral canal where the available roadway width is ______, the carriageway width shall be _______ and the shoulder width shall be _____. If the available roadway width is ________, the shoulder shall expand to ______.
3 meters, 2 meters, 0.5 meters, 4 meters, 1 meter
A rice thresher that is fed with panicles at one end and discharges threshed product at the other end is called
axial flow
The minimum heating efficiency requirement of a direct-fired biomass fueled grain dryer.
65%
When a system deviates infinitesimally from equilibrium at every instant of its state, it is undergoing
quasi-steady
is the process by which a system comprising of two immiscible liquids (usually oil and water), one of which is dispersed as small droplets within the other, is produced.
emulsification
Is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance.
colloid
Minimum ventilation rates under normal condition for breeding and gestating pens.
0.28 m3/min
0.12 - growing & finishing
0.08 - nursery
Recommended orientation of swine house
east-west
Where hot air discharge to the environment?
condenser
