2017 Flashcards
It is a measuring instrument used to determine the area of an arbitrary two-dimensional shape.
planimeter
maximum power rating for microhydro
100 kW
Thickness of concrete FMR
200 mm
Flow in pipe
steady-uniform
diode needed as protection against lighting in the solar installation
blocking diode
How many bits in a bytes
8
nematode concentration
0
rice reaper noise level
92 dB
The minimum trajectory angle for sprinkler.
10-25 degrees
Allowable percentage depletion of most crops.
50%
The ratio of water beneficially used on the project, farm or field to the amount of water delivered to the farm.
Water Use Efficiency
Soil moisture tension with 15 atmospheres.
PWP
Basic irrigation method for lowland farming
basin irrigation
Irrigation method with high cost but low operation cost
overhead irrigation
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
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
Type of flow wherein the discharge or flow in a prismatic channel is constant with respect to time.
steady flow
Flow greater than the critical flow.
supercritical 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
Standard height of an earth embankment
15 meters
Measures atmospheric humidity
hygrometer
A mathematical expression for the macroscopic flow of water through a porous system
Darcy’s
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 and 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%
Soil property which describes the ability of the soil to transmit water
hydraulic conductivity
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.
sub-irrigation
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
𝑉
: Velocity measured by the current meter.
𝑎
: The offset or intercept, which is the velocity when 𝑁 (number of pulses) is zero.
𝑏
: The slope or proportionality constant that relates the number of pulses to the velocity.
𝑁
: The number of pulses generated by the current meter.
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
A 25 kW-50 kW hydro power plant is classified as
micro hydro
For concrete road farm-to-market roads, the maximum slope from the centerline towards the ditch shall be
1.5%
In farm-to-market roads, the minimum radius of curvature for flat, rolling and mountainous terrains, respectively, shall be
500, 150, 50
In a bituminous farm-to-market road, what course is the third layer from the top?
aggregate subbase
The process which results in the diffusion of substances from the region of high concentration to the region of low concentration.
mass transfer
It refers to the extent or degree by which the bran layer of the brown rice is removed as a result of whitening
milling degree
Grit # of milled corn kernel with particle size between 1.8 mm to 2.0 mm
grit#10
The substance employed as heat absorber or cooling agent is called
refrigerant
Type of flooring with openings to facilitate cleaning of the droppings in housing for layer production
slotted
In FMR, the minimum hours before removal of forms
24 hrs
It is the ability of a rice mill to remove hulls without breaking
coefficient of wholeness
Mature male goat
buck
The sows and piglets remain in the farrowing house until the piglets are weaned. The weanlings are transferred to a growing-finishing house
two-unit system
Minimum space requirements per animal for boar pens.
7.5
In the housing for swine production, the heat lamps shall be placed above the sow.
152 mm
Method of greenhouse construction where modular roof units are connected at the eave by a common gutter
ridge and furrow
Air circulation space requirement between sidewalls and benches in a greenhouse
160 mm
In a brooding area, the birds shall receive a total of 23 hours of light at during the first 48 hours
35 watts/m2
Slaughterhouse shall be located at least how many meters away from any building used for human habitation, and from any factory, public road or public place?
200 m
Flammable gas derived from anaerobic fermentation of any organic matter especially animal manure or manure-biomass mixture.
biogas
A type of forage chopper where the chopped materials are blown up through the blow-up pipe
blow-up type
Linear water space requirement per 100 birds whose age are 4 weeks and below.
2.5 m
A measure of quantity of heat that will raise the temperature of one pound of water one degree Fahrenheit
BTU
The ratio of the actual partial pressure exerted by the water vapor in any volume of air to the partial pressure that would be exerted by the water vapor if the water vapor in the air is saturated at the temperature of the air
RH
Part of aerogenerators in wind farms that converts rotational movement to AC electricity.
alternator
What should be the tilt angle from the horizontal of the glass solar collector of a hybrid biomass-solar dryer located somewhere in Surigao, Philippines, having a longitude of 125 degrees and latitude of 9 degrees? Since Philippines is in northern hemisphere, the solar collector faces south or opposite hemisphere for maximum energy collection.
10 deg (minimum inclination for self cleaning)
used to divide or direct the flow of water between two or more canals or ditches. Water enters the box through an opening on one side and flows out through openings on the other sides.
division box
Sequential firing or combustion of the fuel charge inside the engine in the combustion chamber.
firing order
A mechanical breaking up of fuel into spray droplets by high velocity of air passing through a jet.
atomization
Many marketers compete to sell similar products & emphasize on the strategy of differentiation
monopolistic competition
Tax imposed by the government on imported goods
Tariff
Most commonly used type for domestic and irrigation purposes. Consists of an impeller inside an involute casing.
Centrifugal
The process by which a farm manager looks ahead to the future & contemplates alternative courses of action for the farm
Farm Planning
When imports equal imports.
Balance of Trade
Tools Used to make holes or change the size or shape of holes.
boring tools
Type of thresher wherein the panicles of the cut plants are fed into the threshing chamber while the stalks are mechanically or manually held during the threshing operation.
hold-on thresher
Throw-in type thresher wherein cut plants are fed between the rotating cylinder and stationary concave and the threshed materials are discharged out of the threshing chamber tangentially.
through-flow thresher
Machine used to detach, separate and clean the kernels from the cob.
corn sheller
Type of thresher which detaches the grains by feeding the cut plants into the machine.
throw-in
For every 100 chicks, the waterer shall be placed on stands about 25 mm high, what is the minimum water requirement for linear type waterer (PAES 402:2001 Housing for Broiler Production).
3.6 L
In PAES 402:2001 Housing for Broiler Production, what is the length of waterer for linear type for 4 weeks old chicks.
a. 4 meters
b. 3 meters
c. meters
d. 1 meter
4 m
based on PAES, 4 weeks and below shall be 2.5 m while 4 weeks above shall be 4m. Pero wala sa choices so kamo na bahala hahakdog.
In PAES 410:200 (Lairage for Swine, Small and Large Animals), what is the minimum distance from the slaughterhouse?
10 m
Part of biogas digester that purifies and removes impurities from a gas
scrubber
A small trench for the drainage of animal waste
pit
A substance added to the mixture to increase the strength and minimize the time of drying
accelerator
Ratio of the drawbar power developed by the machine to the axle power
traction efficiency
Head agency of AFMech in terms of Research, Development and Extension Network
PhilMech
