AREA 2-O Flashcards by MICS M.

It is the circulation of water in the earth-atmosphere system.
A. Hydrology
C. Water balance
B. Hydrologic cycle
D. Water circulation

B. Hydrologic cycle

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The hydrologic process that reduces the rainfall erosivity is:
A. Precipitation
C. Overland flow
B. Evapotranspiration
D. Interception

D. Interception

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PAGASA raises a Yellow Rainfall Warning if the observed rainfall is:
A. 7.5mm – 15mm within 1 hr
B. 15mm – 30mm within 1 hr
C. More than 30mm within 1hr or More than 60mm for the past 3 hrs
D. None of these

A. 7.5mm – 15mm within 1 hr

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An instrument used to measure the global radiation (the combined intensity of direct solar radiation and diffuse
sky radiation).
A. Pyrheliometer
C. Photometer
B. Pyranometer
D. Pyrgeometer

B. Pyranometer

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A stream that provides water to the water table is termed.
A. Affluent
C. Effluent
B. Influent
D. Perennial

B. Influent

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Portion of the precipitation that makes way towards stream channels, lakes, oceans as surface or subsurface flow.

A. Streamflow
C. Infiltration
B. Runoff
D. Seepage

B. Runoff

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Surface joining the static water levels in several wells penetrating a confined aquifer.

A. Water table surface
C. Capilliary fringe
B. Piezometric surface
D. Cone of depression

B. Piezometric surface

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It is the flow capacity of an aquifer per unit width under unit hydraulic gradient and is equal to the product of
permeability times the saturated thickness of the aquifer.

A. Specific storage
C. Specific yield
B. Specific retention
D. Transmissibility

D. Transmissibility

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Surveying instrument used for determining land areas in a topographic map.
A. Areometer
C. Planimeter
B. Erometer
D. Lysimeter

C. Planimeter

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Which of the following indicates the principle of GPS?

A. Traversing
C. Trilateration
B. Trisection
D. Resection

C. Trilateration

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The maximum dam height for a small water impounding project.

A. 5.0 m
C. 15.0 m
B. 10.0 m
D. 20.0 m

C. 15.0 m

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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.

A. Static head
C. Drawdown
B. Total dynamic head
D. Net discharge head

A. Static head

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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

A. Diversion Water Requirement
C. Irrigation Water Requirement
B. Farm Water Requirement
D. Crop Water Requirement

D. Crop Water Requirement

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In surface irrigation, the ratio between the gross amount of irrigation water and the net requirement of the crop is the:

A. Application efficiency
C. Seepage
B. Deep percolation
D. Runoff

A. Application efficiency

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The maximum permissible water velocity for clay loam canal surface based on PAES 603:2016.

A. 1.2 m/s
C. 0.9 m/s
B. 1 m/s
D. 0.80 m/s

D. 0.80 m/s

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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.

A. Border-strip flooding
C. Herringbone Pattern
B. Ordinary flooding
D. Gridiron Layout

D. Gridiron Layout

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For a 9m x 9m sprinkler spacing, what is the design sprinkler throw for a 40% overlap?

A. 3.3m
C. 5.3m
B. 4.3m
D. 6.3m

D. 6.3m

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This is used if the main source of excess water is drainage from hill lands. The drains are placed along the toe of the slope to protect the bottom land

A. Intercepting Drain
C. Herringbone Pattern
B. Ordinary flooding
D. Gridiron Layout

A. Intercepting Drain

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The maximum dam height for a small farm reservoir?

A. 3.0 m
C. 5.0 m
B. 4.0 m
D. 6.0 m

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B. 4.0 m

In selecting the optimum capacity of the reservoir of a SWIM Project for irrigation purposes, the reliability of
the reservoir should be above.

A. 80-85%
C. 50-60%
B. 30-40%
D. 60-70%

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A. 80-85%

Small water impounding management SWIM Project, in general, are those small-scale water impounding dams which have structural heights of not more than.

A. 45 m
C. 30 m
B. 50 m
D. 100 m

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C. 30 m

A method of erosion control accomplished by constructing broad channels or benches across the slope is:

A. Contouring
C. Strip cropping
B. Terracing
D. Grassed waterway

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B. Terracing

An imaginary line of constant elevation on the surface of the ground.

A. Horizontal interval
C. Contour map
B. Vertical Interval
D. Contour line

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D. Contour line

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
C. Broad-based terrace
B. Zingg terrace
D. Manning’s terrace

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B. Zingg terrace

Breeding and growout production of commercially important marine species are grown in zonified marine cages which the Bureau of Fisheries and Aquatic Resources refers to as: A. Industrial cage parks C. Seawater cage farms B. Ocean cage parks D. Mariculture parks

D. Mariculture parks

Area with more species of corals, fish, and pharmaceutical marine products than any other marine environment on Earth: A. Biome C. Coral Triangle B. Ocean D. Freshwater

C. Coral Triangle

Occurs when excessive nutrients (e.g. NPK fertilizers in agricultural fields) are accumulated in different bodies of water that leads to algal blooms and fish kills. A. Nitrification C. Desertification B. Eutrophication D. Water degradation

B. Eutrophication

Without additional aeration, a continuous supply of 70 gpm of oxygenated, good quality flow-through water can support approximately. A. 265 kg fish C. 365 kg fish B. 300 kg fish D. 400 kg fish

A. 265 kg fish

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 C. Transpiration B. Oxidation D. Photosynthesis

D. Photosynthesis

Plants living more than one year but, in some cases, producing seed in the first year and every season thereafter. A. Annual C. Biennial B. Quarter-annual D. Perennial

D. Perennial

Plants that grow in dry situation and regularly endures and survive drought is called. A. Xarophytes C. Bryophytes B. Hydrophytes D. Spermatophytes

A. Xarophytes

Control of disease through crop rotation falls under what method of plant disease control. A. Biological method C. Physical method B. Cultural method D. Chemical method

B. Cultural method

Refers to the beneficial species of insects which feed or attack other insects. A. Natural enemies C. Pathogen B. Pest D. Prey

A. Natural enemies

Rocks that were formed from the partial melting of existing rocks due heat, pressure chemical action. A. Metamorphic rocks C. Igneous rocks B. Sedimentary rocks D. Volcanic rocks

A. Metamorphic rocks

Which of the following soil microorganism is the most numerous in soils?? A. Bacteria C. Virus B. Fungi D. Actinomycetes

A. Bacteria

It is a process of destroying most disease-producing microorganisms and limiting fermentation in milk subjected to heating for a definite time at a definite temperature and thereafter cooling it immediately. A. Evaporation C. Pasteurization B. Fabrication D. Homogenization

C. Pasteurization

The scientific name for Oriental Cattle. A. Bos taurus C. Bubalus bubalis B. Bos indicus D. Sus scrofa

B. Bos indicus

The period from conception to birth of the young. A. Mastication C. Fecundation B. Lactation D. Gestation

D. Gestation

The scientific name of bighead carp is: A. Kappaphycus C. Chanos chanos B. Aristichthys nobilis D. Oreochromis niloticus

B. Aristichthys nobilis

Perna viridis is the scientific name of: A. Slipper cupped oyster C. Giant clam B. Green mussel D. Mud crab

B. Green mussel

Eye ablation is a way of inducing females to spawn in: A. Milkfish C. Mussels B. Oysters D. Shrimp

D. Shrimp

Water like in estuarine areas with intermediate salinity due to the mixing of fresh and sea water is referred to as: A. Freshwater C. Seawater B. Brackishwater D. Marine water

B. Brackishwater

Species that are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats: A. Exotic species C. Invasive species B. Native species D. Endemic species

C. Invasive species

It is also called geosphere and it consists of the solid Earth that includes the continental and ocean. as well as various layers of Earth’s interior: A. Hydrosphere C. Biosphere B. Atmosphere D. Lithosphere

D. Lithosphere

The boundary between troposphere and stratosphere is known as: A. Tropopause C. Stratopause B. Thermopause D. Mesopause

A. Tropopause

At what time where the sun is farthest distance from the earth: A. The permeability is high C. Perihelion B. Aphelion D. None of these

B. Aphelion

AREA 2-O Flashcards

(46 cards)