EXAM 2

Question 1

Governed by chance; time dependent
a. Stochastic process
b. Probabilistic process
c. Deterministic process
d. Barrow process

Question 2

Interval between corresponding points on successive terraces

a. Horizontal interval
b. Vertical Interval
c. Contour line
d. Contour topography

Question 3

It is a variation of the furrow method and it uses small rills or
corrugations for irrigating closely spaced crops, such as small grains and
pastures.

a. Sprinkler irrigation
b. Sub-irrigation
c. Drip or trickle irrigation
d. Corrugation irrigation

Question 4

Measures the velocity of a floating object preferably in a straight
section of a stream

a. Float method
b. Float type water stage recorder
c. Bubbler gage
d. Crest stage gage

Question 5

A crop grown between orchard trees or on field between cropping season to
protect the land from leaching and erosion:
a. cover crop
b. inter-tilled crop
c. cash crop
d. companion crop

Question 6

A crop which is planted in shortly before the first crop is to be harvested:
a. inter-tilled crop
b. cash crop
c. relay crop
d. companion crop

Question 7

The science or study of disease, its causes, and its controls:
a. Agrometeorology
b. Horticulture
c. Pathology
d. Botany

Question 8

A practical adaptation of reforestation whereby the species planted have
economic value, such as mango, pili and so on.
a. Cropping systems
b. Strip cropping
c. Agroforestry
d. Reforestation

Question 9

The composite parts of the irrigation system that divert water from
natural bodies of water such as rivers, streams, and lakes
a. Headworks
b. Communal irrigation system
c. Secondary canal
d. Main canal

Question 10

The scientific name of strawberry:
a. Vitis vinifera
b. Sandorium koetjape
c. Cocos nucifera
d. Fragaria vesca

Question 11

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 (DWR)
b. Farm Water Requirement (FWR)
c. Irrigation Water Requirement (IWR)
d. Crop Water Requirement (CWR)

Question 11

(Crop rotation) planting different crops, one after the other each season
a. Graded terrace
b. Relay cropping
c. Multi cropping or mixed cropping
d. Strip cropping

Question 12

The name for seasonal winds (derived from Arabic mausim, a season)
a. trade winds
b. Monsoon winds
c. Valley winds
d. Mountain winds

Question 13

The Philippine Agricultural Engineering law of 1998.
a. RA 8559
b. RA 8599
c. RA 8995
d. RA 8595

Question 14

The Agriculture and Fisheries modernization act of 1998?
a. RA 8535
b. RA8435
c. RA8543
d. RA8453

Question 15

A notch of regular form through which the irrigation stream is made to
flow and built as either portable or stationary structure.
a. Parshall flume
b. Weir
c. Dam
d. Orifice

Question 15

Is soil detachment and transport resulting from the impact of water drops
directly on soil particles or on thin water surfaces.
a. Interrill erosion
b. Rill erosion
c. Splash / raindrop erosion
d. Stream channel erosion

Question 16

The mass per unit volume of the soil particle is:
a. Porosity
c. soil density
b. void ratio
d. 4.6
d. specific gravity

Question 17

Can stabilize the slopes of the gully and hence reduce runoff velocities.
a. Riprap
b. Grassed waterways
c. Check dams or weirs
d. Vegetation

Question 18

Caused by the rising of warmer, lighter air in colder, denser
surroundings.
a. Frontal
b. Convective precipitation
c. Cyclonic precipitation
d. Orographic precipitation

Question 19

Land slides and slips due to saturation of steep hills and slopes.
a. Slip erosions
b. Wind erosions
c. Coastal erosions
d. Stream bank erosion

Question 20

Composite facilities that permit entry of water to paddy areas and
consist of farm ditches and turnouts
a. Shallow Tubewell Irrigation Systems (STW)
b. On-Farm Irrigation Facilities
c. Communal Irrigation Systems (CIS)
d. National Irrigation Systems (NIS)

Question 21

It is accomplished by running water through small channels or furrows
while it moves down or across the slope of the field.
a. Corrugation irrigation
b. Furrow irrigation
c. Level-border or basin irrigation
d. Contour-ditch irrigation

Question 22

The recommended flow velocity on earth canals is.
a. 0.30-1.0 m/s
b. 1.0-2.0 m/s
c. 0.10-0.75 m/s
d. None of the above

Question 23

The ____ is the amount of water to be applied to the field as irrigation. a. Diversion Water Requirement (DWR) b. Farm Water Requirement (FWR) c. Irrigation Water Requirement (IWR) d. Crop Water Requirement (CWR)

Question 24

Which is highly dependent on soil texture, refers to the downward movement of water through a depth of soil. a. Percolation b. Evapotranspiration c. Transpiration d. Seepage

Question 25

Graphs that show interrelations between speed, head discharge, and horsepower of a pump. a. Static head b. Total dynamic head c. Drawdown d. Characteristic curve

Question 26

A discharge of 20 L/sec is equivalent to. a. 2 cu.m/hr b. 20000 cu.m/hr c. 0.02 L/min d. 72 cu.m/hr

Question 27

That portion of the available moisture that is most easily extracted by plants; this is approximately 75% of the available moisture. a. Computation of moisture content b. Readily available moisture (RAM) c. Available moisture (AM) d. Permanent wilting point (or wilting coefficient)

Question 28

Associated with the movement of air masses from high-pressure to low pressure regions a. Frontal b. Non Frontal c. Cyclonic precipitation d. Orographic precipitation

Question 29

One liter per second is equal to. a. 16.85 gpm b. 15.5 gpm c. 15.85 gpm d. 17.35 gpm

Question 30

Lands which display marked characteristics justifying the operation of an irrigation system a. Irrigators’ Association b. Irrigation System c. Irrigated Lands d. Irrigable Lands

Question 31

A method of asexual propagation involving the transfer of aerial parts of one plant (scion) to the root or trunk material (stock) of another plant: a. Hydroponics b. Grafting c. Inoculation d. Marcotting

Question 32

The sequences of events occurring in a viable seed, starting with the inhibition of water, that leads to the growth and development of embryo: a. Reproduction b. Vegetative stage c. Fertilization d. Germination

Question 33

A crop produced for direct sale for cash, as contracted with crops produced as livestock feed: a. cover crop b. inter-tilled crop c. companion crop d. cash crop

Question 34

The velocity of flow into the soil caused by a unit hydraulic gradient in which the driving force is one kilogram per kilogram of water. a. Infiltration rate b. Intake rate c. Permeability d. Saturation point

Question 34

The ratio of the normal consumptive use of water to the net amount of water depleted from the root zone soil. a. Consumptive use efficiency b. Water storage efficiency c. Water-use efficiency d. Water application efficiency

Question 35

The ratio between water stored in the soil root zone during irrigation and the water delivered to the farm expressed in percent. a. Consumptive use efficiency b. Water storage efficiency c. Water application efficiency d. Water conveyance efficiency

Question 36

The time rate at which water will percolate into the soil and can be expressed in terms of the following empirical equations a. Infiltration rate b. Intake rate c. Permeability d. Saturation point

Question 37

Construction of earth embankment or ridge and channel across the slope at an acceptable grade to control the flow of runoff as well as soil particles. a. Riprap b. Gabions c. Diversion canal d. Terracing

Question 38

Erosion caused by wave action on the seashore. a. Slip erosions b. Wind erosions c. Coastal erosions d. Stream bank erosion

Question 39

Combination and splash and sheet erosion a. Slip erosions b. Gully erosion c. Rill erosions d. Interrill erosions

Question 40

Time for surface and interflow to recede; duration of flooding a. Surface time b. Base time c. Recession time d. Surface interflow time

Question 41

Same as groundwater runoff a. Base flow b. Subsurface runoff c. Groundwater runoff d. Runoff volume

Question 42

If the depth changes abruptly over a comparatively short distance such as in a hydraulic jump a. Turbulent flow b. Gradually varied flow c. Rapidly varied flow d. Unsteady flow

Question 43

Is the detachment and transport of soil particles from the land by water or wind action. a. Erodibility b. Erosivity c. Erosion d. Soil erosion

Question 44

Which wets the entire land surface a. Hose pipe b. Watering can c. Drainage d. By flooding

Question 45

Replanting of forest trees species in the watershed area a. Cropping systems b. Strip cropping c. Agroforestry d. Reforestation

Question 46

The channel where diverted water from a source flows to the intended area to be irrigated a. Headworks b. Secondary canal c. Main canal d. National irrigation system

Question 47

The method of fertilizer application in which the fertilizer is dissolved in water as prescribed and then sprayed on the upper portion of the plant particularly the leaves: a. broadcast method b. side dressing method c. foliar spray fertilizer d. localized fertilizer

Question 48

The percentage of moisture on dry weight basis that is held against the pull of gravity, after drainage has ceased in a soil that has been saturated: a. wilting point b. air dry c. Hygroscopic coefficient d. field capacity

Question 49

Plants living more than one year but in some cases, producing seed in the first year and every season thereafter: a. annual b. quarter-annual c. biennial d. perennial