HIGHPRIO.7 Flashcards by Jumely Arendon

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%
b. 30-40%
c. 50-60%
d. 60-70%

a. 80-85%

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Discharge is constant with respect to time
a. Spatially variable flow
b. Turbulent flow
c. Laminar flow
d. Steady flow

d. Steady flow

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It is the water retained about individual soil particles by molecular action and can remove only by heating.
a. Permanent wilting point
b. Hygroscopic water
c. Hydroscopic water
d. All of the above

b. Hygroscopic water

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A level land surrounded by earth bunds in which water can be ponded until it infiltrates into the soil
a. Basin
b. Border
c. Bunds
d. contour

a. Basin

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The soil which contain more or less equal amounts of sand, silt and clay
a. Acid soils
b. Alkaline soils
c. Volcanic soils
d. Loam soils

d. Loam soils

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The attraction of water into a hair like opening which defend both on
cohesion of the liquid and on the adhesion of the liquid to solid wall.
a.Infiltration
b.Capillary
c.Infiltration rate
d.Surface tension

b.Capillary

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A pond bottom slope of 2000:1 is equivalent to:
a. 0.05 % slope
b. 0.005% slope
c. 0.5 % slope
d. 5 % slope

a. 0.05 % slope

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The phase from germination to panicle initiation in the life cycle of
rice plant.
a. Metaphase
b. Reproductive phase
c. Vegetative phase
d. Ripening phase

c. Vegetative phase

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This is provided in a pipe drain to prevent seepage:
a. Core trench
b. Collar
c. Freeboard
d. Frame

b. Collar

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The process by which elevation of space grid points in the field are
determined
a.Profile leveling
b.Topographic leveling
c.Contouring
d.NOTA

b.Topographic leveling

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These two culture systems in open water are considered as enclosure
culture systems:
a. Raceways and ponds
b. Ponds and cages
c. Pens and cages
d. Raceways and pens

c. Pens and cages

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The ratio of peak rate of runoff to the rainfall intensity is
a. Time of concentration
b. Rainfall coefficient
c. Runoff coefficient
d. Rational method

c. Runoff coefficient

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In a critical flow, the flow specific energy is ___(X)___ for a given
discharge, and the discharge is ____(Y)___ for a given specific energy.
a. X = minimum; Y = minimum
b. X = maximum; Y = maximum
c. X = minimum; Y = maximum
d. a or b

c. X = minimum; Y = maximum

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The time required for water to flow from the most remote point of the
watershed to the outlet is
a. Time of concentration
b. Recurrence interval
c. Rational method
d. Runoff coefficient

a. Time of concentration

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The scientific name of tobacco is:
a. Brassica oleracea
b. Nicotiana tabacum
c. Nicotiana tartarum
d. Gossypium hirsutum

b. Nicotiana tabacum

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It is the most important consideration for the side slope of a channel.
a. channel size
b. climate change
c. seepage loss
d. kind of channel material

d. kind of channel material

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The most common method of conveying water for irrigation is
a. Irrigation units
b. Open channel
c. Irrigation system
d. Watershed

b. Open channel

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The velocity of water passed in a cross sectional area
a. Discharge
b. Velocity
c. Stream size
d. Unit stream

a. Discharge

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This is a colorless and odorless gas at ambient concentrations and is a
major component of smog. It irritates the respiratory tract and eyes. Exposure to high levels results in chest tightness, coughing and wheezing. People with respiratory and heart problems are at a higher risk. What is this gas?
a.ozone
b.carbon monoxide
c.carbon dioxide
d.methane

a.ozone

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Similar to stone check dams however the stones in this case are placed on rectangular wire mesh, piled-up as blocks and tied together to form a reinforced wall or dam structure.
a. Riprap
b. Gabions
c. Diversion canal
d. Terracing

b. Gabions

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If too much water is applied in to the soil it is loss as flood this
term is
a. Runoff
b. Seepage
c. Infiltration
d. Precipitation

a. Runoff

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This is the most widely used for irrigating row crops where water is
confined to small channel between the crop row
a. border
b. basin
c. furrow
d. sprinkler

c. furrow

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The energy is commonly associated with fluid flow are potential,
kinetic and
a. Flow
b. Electrical
c. Mechanical
d. None of the above

a. Flow

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The direct result of the molecular attraction between molecules is
a. Surface tension
b. Collision
c. Tension
d. Repulsion

a. Surface tension

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The wet land preparation for planting rice consists of soaking, plowing, and puddling. The third step (puddling) involves harrowing or rotavating of land under shallow submerged conditions. The following are the functions of puddling, except: a. reduce soil permeability b. control weeds c. decrease soil acidity d. destruction of soil aggregates and macro-pore volume

d. destruction of soil aggregates

The ratio of the density of material to the density of water at 4 degree Celcius a. Specific gravity/Related density b. Specific density c. Unit weight d. Unit volume

a. Specific gravity/Related density

Scientific name of santol. a. Canarium ovatum b. Averrhoa carambola c. Sandoricum koetjape d. Syzygiuum cumini

c. Sandoricum koetjape

A measured of the variability of viscosity has been established with a numerical designation is called a. Dynamic viscosity b. Kinematic viscosity c. Absolute viscosity d. Viscosity index

d. Viscosity index

Which employs price-lining technique? a.An equipment sold at P1999.95 b.P99-store c.Buy-one-take-one d.Additional two tomatoes for every kilo purchased

b.P99-store

Attraction of unlike molecules is a. Adhesion b. Cohesion c. Tension d. Repulsion

a. Adhesion

Type of rainfall cause by the upward lifting of the air mass due a mountain: a. Convective b. Cyclonic c. Orographic d. Frontal

c. Orographic

What do called the mountain side, with reference to the wind direction in which the air masses passing through it is clod and dry: a. Wayward b. Leeward c. Trade wind d. Windward

b. Leeward

A property associated with a surface tension of a liquid and manifested in the rise and fall of a liquid in small diameter tube a. Capillary b. Cavitation c. Condensation d. Conduction

a. Capillary

If sprinkler irrigation is applied to an area with many irregular or curved boundaries, what is the appropriate pattern to be used? a. staggered b. square c. sliding d. rectangular

c. sliding

A gas _________ a. Will not fill a container b. Can be compressed c. Has its molecule closer together than a liquid d. It can occupy space

b. Can be compressed

The pressure at which a liquid boils is a. Gage pressure b. Absolute pressure c. Atmospheric pressure d. Vapor pressure

d. Vapor pressure

The basic form of energy loss in flow equation stating that the energy loss is directly proportional to the some friction factor, the length of the system and the kinetic energy level and inversely proportional to the diameter of the conductor a. Darcy equation b. Manning equation c. Bernoullis equation d. Hagen – Poiseuille equation

a. Darcy equation

Which is true about unconfined aquifer? a. Its piezometric surface is at the water table. b. It is found between two impermeable layers. c. It is also known as phreatic aquifer. d. It is a completely saturated aquifer.

b. It is found between two impermeable layers.

A device for measuring temperature based on the electrical difference of two materials. a. Tee b. Thermistor c. Thermocouple d. Thermometer

c. Thermocouple

Fluid moves in parallel layers with no cross-currents; Re <= 2000 a. Spatially variable flow b. Turbulent flow c. Laminar flow d. Gradually varied flow

c. Laminar flow

A highly efficient variable head flow meter whose restriction contracts and expand very slowly a. Piezometer b. Weir c. Venturi d. Sluice gate

c. Venturi

These are breaks which occur in channel bank causing water to spilled from the channel in an uncontrolled manner a.Erosion b.Breaches c.Cavitation d.Drainage

b.Breaches

What three most important factors input into the determination of prices? a.cost, demand, competition b.target market, promotional expenses, distribution channels c.market share, competitive moves, substitutes d.demographics, purchasing habits, shelf position

a.cost, demand, competition

The soil property which described the ability of the soil to transmit water a. Hydraulic conductivity b. Matric potential c. Percolation rate d. Infiltration rate

a. Hydraulic conductivity

Graphical representation of instantaneous runoff rate against time : a. Hydrograph b. Log-probability graph c. Monograph d. Hyetograph

a. Hydrograph

Irrigation systems that have relatively large service areas and are managed by government agencies. a. CIS b. NIS c. STW d. SFR

b. NIS

It is the natural and synthetic hydrograph for one unit of direct runoff from the catchments in a specific unit of time: a. Basic hydrograph b. Unit hydrograph c. Design hydrograph d. Runoff hydrograph

b. Unit hydrograph

It is 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. a. water use efficiency b. consumptive use efficiency c. water conveyance efficiency d. water storage efficiency

d. water storage efficiency

Removal of soil by water from small but well defined channels when there is concentration of over land flow a. Stream channel erosion b. Rill erosion c. Gully erosion d. Sheet erosion

a. Stream channel erosion

When is the best/recommended time to sample sediment load in the stream a. Peak flow b. Intermittent flow c. Base flow d. Perennial flow

a. Peak flow

Which is not true about pipe flow? a. It exerts no direct pressure. b. Flow is confined in a closed conduit. c. It exerts hydraulic pressure. d. Flow is subjected to atmospheric pressure.

d. Flow is subjected to atmospheric pressure.

A super critical flow is a flow condition where: a. Fr =1 ( critical) b. Fr >1 c. Fr<1 (sub-critical) d. Fr >4000 (turbulent)

b. Fr >1

The USLE is a method of computing soil erosion. What type of soil erosion does it estimate? a. Sheet erosion only b. Sheet and rill erosion only c. Sheet, rill and gully erosion d. All types of erosion

b. Sheet and rill erosion only

Type of flow wherein the discharge or flow in a prismatic channel is constant with respect to time a. Laminar flow b. Steady flow c. Uniform flow d. Critical flow

b. Steady flow

Type of sediment load along the stream characterized as sediments that are sometimes stationary or sometimes carried by the water along the stream a. Saltating load b. Temporary load c. Bed load d. Suspended load

a. Saltating load

For soil with higher organic matter content, soil erosion is ____________. a. higher b. lower c. easier d. a or c

b. lower

Who is a merchant? a. Someone who engages in commodity production. b. Someone who helps potential customers get access to products. c. Someone who buys and resells commodities. d. Someone who provides warehouses and storage facilities.

c. Someone who buys and resells commodities

The quantity of water exclusive of precipitation required to maintain desired soil moisture and salinity level during the crop season a. Crop water requirement b. Farm water requirement c. Diversion requirement d. Irrigation water requirement

d. Irrigation water requirement

Darcy's law states that the flow of water through a porous medium is a. Proportional to the medium hydraulic conductivity b. Inversely proportional to the length of flow path c. Both a and b d. Neither a nor b

c. Both a and b

Refer to the short-period variations in the atmosphere a. Weather b. Climate c. Horizontal visibility d. NOTA

a. Weather

The physical characteristics of water which greatly affect the survival of flora and fauna in the body of water, and its increase will also cause increase in the biological activity and higher demand for dissolved oxygen. a. sediment b. temperature c. turb d. pH

b. temperature

Characterized by a vertically isothermal structure in the lower portion followed by increasing temperature in the upper portion a. Troposphere b. Stratosphere c. Mesosphere d. Thermosphere

b. Stratosphere

Which does not belong to the group? a.Yorkshire b.Hampshire c.Berkshire d.Ayshire

d.Ayshire

Most of the thermosphere. a. Ionosphere b. Exosphere c. Protosphere d. NOTA

d. NOTA

PVC means: a. poly veneer chloride b. poly vinyl carbide c. poly vinyl chloride d. poly veneer-vinyl chloride

c. poly vinyl chloride

The most stable and chief component of most soil on a volumetric basis. a. Mineral particles b. Chemical elements c. Water d. Air

a. Mineral particles

Which is not a correct description of a soil erosion plot which is used to experimentally measure soil erosion? a. bare follow b. 9% slope c. 22 meters long d. 7.26 feet high

d. 7.26 feet high

Upper part of the thermosphere, where earth magnetic field is more important than gravitational field in controlling the behaviors of proton a.Ionosphere b.Exosphere c.Protosphere d.NOTA

c.Protosphere

Which is true about infiltration? a. The process involves three stages: surface entry, filling up of soil profile storage potential, and transmission of water going out the soil profile. b. It has a high initial rate that diminishes with time. c. The fluid and the medium (soil properties) are the only factors affecting infiltration. d. Infiltration stops when runoff occurs.

b. It has a high initial rate that diminishes with time.

A centrifugal pump is used to irrigate an entire field. But upon starting the engine, the pump has shakes and produces too much noise. Worse, the water discharged has inconsistent flow. 93. What is the probable remedy for the uneven water discharge? a. increase pump speed b. clean clogged strainer c. tighten defective gland packing d. check if impeller and casing rub

c. tighten defective gland packing

How will the problem on vibration and noise be solved? a. increase pump speed b. tighten defective gland packing c. check if impeller and casing rub d. check and correct pump rotation

c. check if impeller and casing rub

Lower part of the thermosphere, ionized layer which the long distance radio communication is possible. a. Ionosphere b. Exosphere c. Protosphere d. NOTA

a. Ionosphere

At what time where the sun is farthest distance from the earth a. Aphelion b. Perihelion c. The permeability is high d. None of the above

a. Aphelion

What factors would lead a marketer to adopt a going-rate pricing strategy? a. There are no product differentiation and competitor moves are uncertain. b. The pricing policy is 20% recovery on production cost. c. There is an unusually high demand for the product. d. The product is inferior.

a. There are no product differentiation and competitor moves are uncertain.

Refers to the long period manifested by weather a. Weather b. Climate c. Horizontal visibility d. NOTA

a. Weather

HIGHPRIO.7 Flashcards

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