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ABELE Review > Part 2 - ISU Reviewer > Flashcards

Part 2 - ISU Reviewer Flashcards

1
Q

Irrigation and Drainage Eng’g: Using current meter in getting the velocity of stream, what is the
value of a in v = a + bn?

A

Starting Velocity

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2
Q

Soil Science: What is the most abundant microorganism found in the soil?

A

Bacteria

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3
Q

Hydrometeorology: Water retained about individual soil particles by molecular action and can be
removed only by heating.

A

Hygroscopic Water

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4
Q

Hydrometeorology: Geologic formation arranged in decreasing economic considerations.

A

Aquifer, Aquiclude, Aquitard, Aquifuge

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5
Q

Hydrometeorology: Volume of voids over total soil volume.

A

Porosity

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6
Q

Hydrometeorology: Moisture content of the soil when the gravitational water has been removed.

A

Field Capacity

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7
Q

Hydrometeorology: It is the ratio of the dry weight of soil particles to the weight of an equal
volume of water

A

Apparent Specific Gravity

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8
Q

Hydrometeorology: 75% of available moisture is called:

A

Readily Available Moisture

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9
Q

Hydrometeorology: Ratio of the dry weight of the soil to the weight of the water with volume
equal to the soil bulk volume.

A

Apparent Specific Gravity

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10
Q

Irrigation and Drainage Eng’g: Which of the following is the most economic type of drainage
system?

A

Gridiron

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11
Q

Irrigation and Drainage Eng’g: One hundred thousand two hundred and fifty cubic meters (this
must be 12,500 m3) of water was delivered to a 10 ha farm for the month of June in which
consumptive use is estimated at 8 mm/day. The effective rainfall for the period was 150 mm.
What is the irrigation efficiency?

A

72%

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12
Q

Irrigation and Drainage Eng’g: What is the discharge in each sprinkler nozzle to irrigate a
rectangular piece of land 150m x 180m if the laterals are set parallel to the longer side of the
field? Sprinkler spacing is 6m x 6m, irrigation water requirement is 150 mm and irrigation period
is 6 hours.

A

0.250 lps

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13
Q

. Irrigation and Drainage Eng’g: One liter per second is equal to?

A

0.001 m3/sec

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14
Q

Hydrometeorology: Water held by forces of surface tension and continuous films around the soil
particles

A

Capillary Water

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15
Q

Irrigation and Drainage Eng’g: Amount of drainage water to be removed per unit time per unit
area.

A

Drainage Coefficient

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16
Q

. Hydrometeorology: The sum total of head above the vapor pressure of the liquid being pumped
at a given pumping temperature.

A

Total Dynamic Head

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17
Q

Irrigation and Drainage Eng’g: A concrete lined canal is to convey water over a distance of 250 m
from the well to a tomato farm. Drop in elevation is 0.5 m over the 250 m canal length and
roughness coefficient, n, is 0.018.the bottom width of a rectangular canal with a depth of flowing
water of 0.25 m if the hydraulic radius is equal to the area of flow. The velocity of water in the
canal is?

A

0.62 m/sec

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18
Q

Hydrometeorology: The moisture content of the soil when the tension is 15 atmosphere.

A

Permanent Wilting Point

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19
Q

Wastewater Engineering: Agency that controls the re-use of wastewater.

A

Department of Environment and Natural Resources

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20
Q

Irrigation and Drainage Eng’g: The simplest form of open channel flow computation.

A

Steady Uniform Flow

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21
Q

Irrigation and Drainage Eng’g: It is a gate placed across a stream from which it is desired to divert
water.

A

Check gate

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22
Q

Hydrometeorology: Change in phase from water vapor to ice.

A

sublimation

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23
Q

Irrigation and Drainage Eng’g: Most commonly used type of irrigation.

A

Furrow Irrigation

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24
Q

Soil and Water Conservation Eng’g: A principle of English Common Law which recognizes the right
of riparian owner to make reasonable use of streamflow provided the water is used on riparian
land.

A

Riparian Right

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25
Q

Hydrometeorology: Water content in mineral soil.

A

20 - 30%

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26
Q

Wastewater Engineering: Conversion of organic matter to ammonia.

A

Nitrification

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27
Q

Engineering Surveying: 1 degree of equator of earth is equal to:

A

4 minutes

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28
Q

Hydrometeorology: The lateral movement of water in the soil.

A

Seepage

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29
Q

Crop Science: What nutrient deficiency if rice leaf are dark green?

A

Potassium

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30
Q

Hydrometeorology: Type of stream that is also known as loosing stream. Water table in this case
falls below the stream channel bed.

A

Influent Stream

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31
Q

Irrigation and Drainage Eng’g: A closed conduit usually circular, square or rectangular in cross
section, used for conveying water across and under an elevated roadway, embankment and dikes.

A

Culvert

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32
Q

Hydrometeorology: The pressure gauge measures the reading as 35 psi. Compute for the absolute
pressure assuming standard atmospheric pressure.

A

49.7 psi ; 1 atm = 14.7 psi

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33
Q

Solid Geometry: If the sphere is cut at its longest diameter, what will be the shape cross-section
of the sphere?

A

Circle

34
Q

Hydrometeorology: The locus of the elevation to which water will rise in a piezometric tube.

A

Hydraulic Gradient

35
Q

PAES 225:2017 (Small Water Impounding System): A technique used to predict the changes in
shape of hydrograph as water moves through a river channel or reservoir

A

Flood Routing

36
Q

Irrigation and Drainage Eng’g: The most efficient trapezoidal cross-section.

A

width of the bottom = twice the depth

37
Q

Irrigation and Drainage Eng’g: Closed conduit designed to convey canal water in full and under
pressure running condition, to convey canal water by gravity under roadways, railways, drainage
channels and local depressions.

A

Inverted Siphon

38
Q

. Hydrometeorology: A device used in measuring pressure in a tube with respect to difference in
elevation.

A

Manometer

39
Q

Hydrometeorology: The moisture content present in the soil when gravitational water has been
removed

A

Field Capacity

40
Q

Hydrometeorology: The soil characteristic determining the maximum rate at which water can
enter the soil under specific conditions, including the presence of excess water.

A

Infiltration Rate

41
Q

Probability: What is the probability of drawing queen of hearts on a deck of cards?

A

1/52

42
Q

. Irrigation and Drainage Eng’g: Volume of water stored in reservoir between the minimum water
level and normal water level.

A

Active Storage

43
Q

Hydrometeorology: The composite parts of the irrigation system that divert water from natural
bodies of water such as rivers, streams, and lakes.

A

Headworks

44
Q

Hydrometeorology: The other term for gravity well.

A

Confined Well

45
Q

Irrigation and Drainage Eng’g: Water is supplied to level plots surrounded by dikes or levees. This
method is particularly useful on fine-textured soils with low permeability, it is necessary to hold
the water on the surface to secure adequate penetration.

A

Level-Border Irrigation

46
Q

Hydrometeorology: Development of deep well by compressed air is best suited for ___wells.

A

Small

47
Q

Surveying: A method of measuring distance used when the desired accuracy is not greater than 2
percent.

A

Pacing

48
Q

Irrigation and Drainage Eng’g: A notch of regular form through which the irrigation stream is
made to flow and flow built as either portable or stationary structures.

A

Weir

49
Q

Hydrometeorology: The direct attraction of similar molecules between similar molecules.

A

Cohesion

50
Q

Hydrometeorology: Surface runoff plus interflow

A

Direct Runoff

51
Q

Surveying: A rod taken in known elevation.

A

Backsight

52
Q

Surveying: A surveyor measured the length of road by chains and link. Point A to point B measures
12 chains and the remaining length measures 25 links. What is the total length of the road?

A

245 m

53
Q

Surveying: The elevation of the line of sight of the telescope when the instrument is leveled.

A

Height of Instrument

54
Q

Surveying: The operation of leveling to determine the relative elevations of points some distance
apart

A

Differential Leveling

55
Q

Soil and Water Conservation Eng’g: A type of terrace usually used for platforms.

A

Bench Terrace

56
Q

Irrigation and Drainage Eng’g: The ratio of water beneficially used on the project, farm or field to
the amount of water delivered to the farm expressed in percent.

A

Water-Use Efficiency

57
Q

Irrigation and Drainage Eng’g: The most hydraulically efficient trapezoidal channel section to
carry a discharge of 5m3/s on a bed material with roughness n of 0.02 and a bottom slope of 1 in
800. What should be the bottom width of the canal?

A

1.65 m

58
Q

Irrigation and Drainage Eng’g: In-line structure with a geometrically specified constriction built in
an open channel such that the center line coincides with the center line of the channel in which
the flow is to be measured.

A

Flume

59
Q

Hydrometeorology: Associated with the movement of air masses from high-pressure to low pressure regions.

A

Cyclonic Precipitation

60
Q

Irrigation and Drainage Eng’g: Removal of water from the road area by the use of culverts,
ditches, channels and other several structures.

A

Drainage

61
Q

Irrigation and Drainage Eng’g: The flow in a channel varied with respect to time.

A

Unsteady Flow

62
Q

Irrigation and Drainage Eng’g: It is the sheet of water which overflows on a weir.

A

Nappe

63
Q

Soil and Water Conservation Eng’g: The removal of soil by water from small but well-defined
channels or streamlets when there is a concentration of the overland flow

A

Rill Erosion

64
Q

Hydrometeorology: Term used for solar radiation received at the earth’s surface

A

Insolation

65
Q

Irrigation and Drainage Eng’g: For an 10m x 10m sprinkler spacing, what is the design sprinkler
throw for a 50% overlap?

A

7.5 m

66
Q

Irrigation and Drainage Eng’g: It is the most elaborate method of computing potential
evapotranspiration:

A

FAO Penman-Monteith

67
Q

Soil Science: The ratio of the dry weight of the soil to the volume of the soil particles

A

Bulk Density

68
Q

Hydrometeorology: What is the present moisture content of a soil with 25% of its AM has been
used of its FC is 24% and PWP is 16% by weight?

A

22%

69
Q

ydrometeorology: What is the present moisture content of a soil with 30% of its AM has been
used of its FC is 25% and PWP is 20% by weight?

A

24%

70
Q

Statistics: What is the sample variance of the given data: 2, 8, -4, 10, 6, -17, and 15?

A

112.78

71
Q

Statistics: What is the sample variance of the given data: 2, 8, -4, 10, 6, -17, and 15?

A

10.62

72
Q

Irrigation and Drainage Eng’g: What will be the maximum spacing for the rectangular pattern of
sprinkler irrigation with an average wind speed of 10 kph? (refer to PAES 223:2017)

A

40% between sprinkler, 60% between lateral

73
Q

Irrigation and Drainage Eng’g: What will be the maximum spacing for the square pattern of
sprinkler irrigation with an average wind speed of 10 kph? (refer to PAES 223:2017, question not
included, additional)

A

50%

74
Q

Irrigation and Drainage Eng’g: How many sprinklers with spacing of 7m x 7m are needed to
irrigate a rectangular piece of land 125 m x 190 m if the laterals are set parallel to the longer side
of the field?

A

486

75
Q

Irrigation and Drainage Eng’g: A rectangular piece of land 180m x 240m is laid out with one-sided
sprinkler irrigation system. Laterals are set parallel to the longer side of the field. Sprinkler spacing
is 6m x 6m, irrigation water requirement is 150 mm and irrigation period is 6 hours. Laterals are
set on only one side of the mainline. The sprinkler discharge is

A

0.250 lps

76
Q

Irrigation and Drainage Eng’g: A trapezoidal channel has a base width of 6 meters and a side slope
of 1H:1V. The channel bottom slope is 0.0002 and the Manning roughness coefficient is 0.014.
What is the depth of flow if Q = 12.1 m3/s?

A

1.5 m

77
Q

. Hydrometeorology: A cylinder was pushed into the soil. The cross-sectional area of the cylinder
was 0.025 m2. The length of the soil column within the cylinder was 0.30 m. The weight of the soil
within the cylinder was 9.5 kg when it was dried. The weight of the soil before drying was 11.4 kg.
Determine the bulk density of the soil.

A

1.27 g/cc

78
Q

PAES 226:2017 (Small Farm Reservoir): Minimum depth of soil profile to be tested and analyzed
for the design of Small Farm Reservoir.

A

1.5 m

79
Q

Soil and Water Conservation Eng’g: Maximum elevation the water surface which can be attained
by the reservoir without flow in the spillway.

A

Normal Storage Elevation

80
Q

Hydrometeorology: This law of radiation states that the total amount of energy per unit area
emitted by an object is proportional to the 4th power of the temperature

A

Stefan-Boltzman Law

ABELE Review (3 decks)

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