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MOCK BOARD > PART II > Flashcards

PART II Flashcards

1
Q
  1. Area which contributes runoff or drains water into the reservoir.
A

Watershed

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2
Q
  1. This is a reinforced concrete slab or a thick wooden plank that span the sidewalls built around the floating cages.
A

Catwalk

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3
Q
  1. The science that encompasses the occurrence, distribution, movement, and properties of the waters of the earth and their relationship with the environment.
A

Hydrology

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4
Q
  1. A branch of meteorology and hydrology that studies the transfer of water and energy between the land surface and the lower atmosphere.
A

Hydrometeorology

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5
Q
  1. Method of areal rainfall determination done by computing the weighted average.
A

Arithmetic method

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6
Q
  1. Part of rainfall which runs off the soil as surface or subsurface flow.
A

Runoff

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7
Q
  1. The part of rainfall that is stored in the root zone and can be used by the plants.
A

Effective rainfall

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8
Q
  1. It involves two processes in converting ammonium and ammonia into useful nitrates.
A

Nitrification

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9
Q
  1. The inverse of the probability of exceedance of a certain hydrologic event.
A

Return period

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10
Q
  1. Airmass lifting process which is mountain-facilitated.
A

Orographic

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11
Q
  1. The precipitation depth that corresponds to a liquid quantity of 1 liter falling into a 1 square meter of ground area.
A

1 mm

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12
Q
  1. Probability of occurrence any year of hydrologic event recurring once in 4 years.
A

25%

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13
Q
  1. What is the probability of occurrence in any year of a hydrologic event recurring every year?
A

100%

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14
Q
  1. It is characterized by a single high tide every’ 24 hours and 50 minutes.
A

Diurnal tide

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15
Q
  1. Rainfall depths recorded were as follows: 8mm and 2mm for 8:00/A.M. and 2:00 P.M., respectively on 7-7-2022 and 5 mm and 9 mm for 8:00 A.M. and 2:00 P.M., respectively on 7-8-2022. What is the total rainfall depth on 7- 7-2022?
A

10 mm

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16
Q
  1. The agrometeorological station uses electronic rain gage. The rainfall depths were recorded on June 1, 2022 as follows: 2 mm from 6:QO to 8:00 A.M., 7 mm from 8:00 to 10:00 A.M., 9 mm from 12:00 noon to 2:00 P.M. and zero rainfall for all other times of the day and the previous day. What is the rainfall intensity recorded on June I, 2022?
A

3 mm/hr

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17
Q
  1. Estimate the time of concentration of a certain watershed having a time lag of 1 hour.
A

1.43 hrs

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18
Q
  1. The maximum permissible water velocity for clay loam canal surface based on PAES 603:2016.
A

0.8 m/s

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19
Q
  1. It is a complex mixture of algae. cyanobacteria, heterotrophic microbes. and detritus that are attached submerged surfaces in most aquatic ecosystems.
A

Periphyton

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20
Q
  1. The minimum permissible velocity for water with sediments in lined canals based on PAES 603:2016.
A

0.9 m/s

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21
Q
  1. Application of water in the soil to supply moisture needed for plant growth.
A

Irrigation

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22
Q
  1. Loss of water from a channel during transport due to seepage and percolation.
A

Conveyance loss

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23
Q
  1. Depth of water flow where the energy content is at minimum hence, no other backwater forces are involved.
A

Critical depth

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24
Q
  1. A microscopic aquatic animal of the phylum Rotifera.
A

Rotifer

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25
Q
  1. Ratio of the actual crop evapotranspiration to its potential evapotranspiration.
A

Crop coefficient

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26
Q
  1. Moisture content of the soil when gravitational water has been removed.
A

Field capacity

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27
Q
  1. Elevated section of open channel used for crossing natural depressions.
A

Flume

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28
Q
  1. Top producer of milkfish from brakishwater fishpond according to the Philippine Fisheries Profile 2020.
A

Region VI

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29
Q
  1. Surveying instrument used for determining land areas in a topographic map.
A

Planimeter

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30
Q
  1. An aquatic organism that is able to tolerate a wide range of salinity.
A

Euryhaline

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31
Q
  1. Elevation of water surface in a stream with reference to a certain datum.
A

Stage

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32
Q
  1. Facility for determining water consumptive use of crops in an open field.
A

Lysimeter

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33
Q
  1. Time required to cover an area with one application of water.
A

Irrigation period

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34
Q
  1. At optimal emitter spacing, drip emitter spacing is of the wetted diameter estimated from field tests.
A

80%

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35
Q
  1. Reference crop evapotranspiration is the rate of evapotranspiration from a reference surface which is a hypothetical reference crop with an assumed crop height of 0.2 m and an albedo of _______.
A

0.23

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36
Q
  1. It is composed of fish or aquatic animal manure, uneaten feeds and other waste material that could be a source of toxic substances.
A

Sludge

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37
Q
  1. Which one is the flattest canal side slope?
A

4:1

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38
Q
  1. Determine the side slope angle e with the horizontal plane of an unlined canal with side slope ratio (run: rise) z of
A

26.6°

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39
Q
  1. A separation process in which a certain quantity of a mixture is divided during a phase transition into a number of smaller quantities in which the composition varies according to a gradient.
A

Fractionation

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40
Q
  1. If the most efficient concrete canal has its side angle e with the horizontal plane equal to 600, what is the z value of the canal sides or the side’s horizontal run in meters per meter rise? This value is commonly used in designing
A
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41
Q
  1. What is the top width at water surface level of the most efficient concrete open channel if the design depth is 5 meters? The design discharge is 100 m3/s and velocity is 2 m/s.
A

12.9 m

42
Q
  1. Describes the cloudiness or muddiness of water.
A

Turbidity

43
Q
  1. What is the total top width of the most efficient concrete open channel if design depth is 5 meters? Design discharge is 100 rn3/s and velocity is 2 m/s. Use 15% freeboard.
A

13.8

44
Q
  1. What is the base of the most efficient trapezoidal concrete open channel if discharge is 100 m3/s and velocity is 2 m/s?
A

6.14 m

45
Q
  1. The number of eggs that can be produced by a female mudfish depending on its size.
A

400-5,000

46
Q
  1. What is the bottom width for the best hydraulic cross-section (best proportion) of concrete open channel if design depth is 5 meters and side slope is 45°?
A

4 m

47
Q
  1. What is the bottom width for best hydraulic cross-section of unlined open channel for minimum seepage if design depth is 5 meters and side slope is 45°?
A
48
Q
  1. Refers to an advanced stage of pregnancy of an aquatic organism.
A

Gravid

49
Q
  1. What is the bottom width for best hydraulic cross-section of unlined open channel with minimum seepage if design depth is 5 meters and side slope is 2:1?
A
50
Q
  1. Estimate the width and depth of concrete-lined rectangular open channel for water velocity of 2 m/s and discharge of 10 m3/s.
A

3.2 m and 1.6 m

51
Q
  1. What should be the base and depth of concrete-lined rectangular open channel for a cross- sectional area of 50 m2? Design for efficiency over proportion.
A
52
Q
  1. What should be the depth and side angle with the horizontal of concrete-lined triangular open channel for a cross-sectional area of 50 m2?
A
53
Q
  1. What design depth of open channel would you recommend to carry 100 cubic meters/sec with a velocity of 5 m/s? Use the most efficient of all trapezoidal cross-sections.
A
54
Q
  1. If the most efficient of all trapezoidal cross-sections can be used, what actual depth of open channel would you recommend to carry 100 cubic meters/sec with a velocity of 5 m/s? Use 15% freeboard.
A
55
Q
  1. If an unlined trapezoidal canal with best hydraulic cross-section can be used, what actual depth of open channel would you recommend to carry 10 cubic meters/sec with a velocity of 1 m/s? Use side slope and freeboard.
A
56
Q
  1. Slope of the upstream face of the embankment.
A

Inside slope

57
Q
  1. The standard device used to measure cell numbers in most laboratories which are typically automated to increase throughput.
A

Hemocytometer

58
Q
  1. 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

59
Q
  1. ____________ water requirement is the amount of water required in lowland rice production which includes water losses through evaporation, seepage, percolation, and land soaking.
A

Land preparation

60
Q
  1. ____________ water requirement is the amount of water required in lowland rice production which is a function of the initial soil moisture a d the physical properties of the soil.
A

Land soaking

61
Q
  1. Deep percolation of water beyond the root zone of plants, resulting in loss of salts or nutrients.
A

Leaching

62
Q
  1. Allowable pollutant-loading limit per unit of time, which the wastewater generator is permitted to discharge into any receiving body of water or land.
A

Allowable limit

63
Q
  1. Portion of the pipe network between the mainline and the laterals.
A

Manifold

64
Q
  1. Under the FAO 263, the Philippine Waters is delineated into how many Fisheries Management Area?
A

12

65
Q
  1. Spillway which is not excavated such as natural draw, saddle or drainage way.
A

Natural Spillway

66
Q
  1. Constant flow depth along a longitudinal section of a channel under a uniform flow condition.
A

Normal depth

67
Q
  1. Maximum elevation of the water surface which can be attained by the spillway-type dam or reservoir without flow in the spillway.
A

Design depth

68
Q
  1. In what condition is the open channel freeboard used for water conveyance?
A
69
Q
  1. The primary purpose in limiting water flow not to go below minimum velocity.
A

Avoid sedimentation

70
Q
  1. Open channel flow is water flow that is conveyed in such a manner that top surface is exposed to the atmosphere flow conditions. such as flow in canals, ditches, drainage channels, culverts, and pipes under
A

Partially full

71
Q
  1. A tool for genetic manipulation or propagation in the crustacean stock, including shrimps and crabs, by controlled reproduction.
A

Insemination

72
Q
  1. Part of the system that impounds the runoff.
A

Reservoir

73
Q
  1. Ratio between reference evapotranspiration and water toss by evaporation from an open water surface of a pan.
A

Pan coefficient

74
Q
  1. It is the circulation of water from the oceans, through the atmosphere back to the oceans, or to the land and thence to the oceans again by overland and subterranean routes.
A

Hydrologic cycle

75
Q
  1. Vertical flow of water below the root zone. which is affected by soil structure, texture, bulk density, mineralogy, organic matter content, salt type and concentration.
A

Percolation

76
Q
  1. Method to determine the rate of flow under laminar flow conditions through a unit cross sectional area of soil under unit hydraulic gradient.
A

Permeability test

77
Q
  1. Java tilapia is quite prolific as it can breed even at a small size provided that it has reached the mature age of
A

3-4 months

78
Q
  1. The process by which the soil is removed from its natural place.
A

Soil erosion

79
Q
  1. A kind of terrace which consists of a series of flattened areas.
A

Bench terrace

80
Q
  1. The practice where legumes are plowed or incorporated into the soil.
A

Green Manuring

81
Q
  1. Farming practice where plowing and harrowing are done along the contour.
A

Contouring

82
Q
  1. The simplest method of determining soil erosion over a period of time.
A

Pin Method

83
Q
  1. Dam which resists water flow of water by its weight.
A

Gravity dam

84
Q
  1. Dam consisting of stones enclosed in cyclone wires which allows water passage.
A

Gabion dam

85
Q
  1. Ratio of amount of energy reflected by a surface to the total amount of incident in the surface
A

Emissivity

86
Q
  1. A dike used to protect the farmland from floods as well as for retaining pond water.
A

Levee

87
Q
  1. Geological formation shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rocks such as limestone or dolomite.
A

Karst topography

88
Q
  1. Constant for soil erodibility and cover conditions for erodible soil and poor cover.
A

0.8

89
Q
  1. Estimate the peak runoff rate from 20-hectare drainage basin if rainfall depth for 6 hours reached 60 mm. Use typical runoff coefficient of 0.35.
A
90
Q
  1. Estimate the runoff volume from a 20-hectare drainage basin if rainfall depth for 6 hours reached 60 mm and duration of runoff is about 3 hours. Use typical runoff coefficient of 0.35.
A
91
Q
  1. A trapezoidal concrete gravity dam has vertical upstream wall. Water depth in the upstream side is 50 meters above the dam base. Freeboard of 15% based on design depth. What is the force of water exerted against dam per meter of dam width at deepest section?
A
92
Q
  1. This law relates the total amount of radiation emitted by an object to its temperature.
A

Stefan-Boltzman Law

93
Q
  1. A trapezoidal concrete gravity dam has vertical upstream wall. Water depth in the upstream side is 50 meters above the dam base. The base of dam is 78 meters along water flow. What is the uplift force of seepage water below the dam per meter of dam width at deepest section?
A
94
Q
  1. The temperature of an air parcel if brought adiabatically from its actual pressure (P) to a standard pressure (100 kPa)
A

Potential temperature

95
Q
  1. A trapezoidal concrete gravity dam has inclined upstream wall. Resisting moment relative to the dam toe is 263,953.2 ton-meters while overturning moment is 96,233.3 ton-meters per meter of dam width at deepest section. What is the safety factor against overturning? Is it safe?
A
96
Q
  1. A procedure by which hatcheries are able to extend their production season, removing reliance on the relatively brief period in the year when adults of the desired species are bearing mature gametes in the sea.
A

Broodstock conditioning

97
Q
  1. This is the culture of single species of fish in a pond or tank.
A

Monoculture

98
Q
  1. Refers to the development stage of fish following the fingerling stage and lasting until approximately one year of age.
A

Yearling

99
Q
  1. Temperature to which the latent heat of vaporization will cool the ambient air
A

Dew point temperature

100
Q
  1. The eel culture industry in the Philippines is still in its infancy, having started in what year when commercial quantities of elvers were first discovered in the estuarine delta of the Cagayan River system, Cagayan Province, Philippines?
A

1972

MOCK BOARD (2 decks)

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