HIGHPRIO.1 Flashcards
Ratio of the dry weight of soil particles to the weight of an equal volume of water
a. Particle Density
b. Bulk Density
c. Real specific Density
d. Apparent specific density
c. Real specific Density
A television network is planning to air four 30-minute sitcoms namely:
“Mana-Mana”, “Okidoki”, “Tanging Ama” and “Home Along da Sea”. In how many ways can the network arrange these sitcoms in a 7-9 pm time slot if “ManaMana” should be aired third?
a. 1
b.2
c.6
d.24
c.6
For rolling areas and non-uniform distribution of gages, distance factor fixed by location of gages is used for analysis using this method.
a.Inverse Distance Ratio Method
b.Grid-Point Method
c.Isohyetal
d.Thiessen polygon
a.Inverse Distance Ratio Method
Which among the elements is a major element for plant nutrition?
a. Boron
b. Chlorine
c. Nitrogen
d. Silicon
c. Nitrogen
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
b. oxidation
c. transpiration
d. photosynthesis
d. photosynthesis
Total water yield from a storm for a given watershed
a. Surface runoff
b. Subsurface runoff
c. Groundwater runoff
d. Runoff volume
a. Surface runoff
The recent monsoon rains have posted a nearly uniform rainfall intensity of 30 mm/hr over a 1,500-hectare watershed area in Central Luzon. If the runoff coefficient is 0.15, what is the runoff in m3/sec?
a. 18.75
b. 187.5
c. 1.87
d. 1.875
a. 18.75
Q=CIA
An artesian well has a diameter of 10 cm. Under steady state condition, what is the expected discharge (lps) if the drawdown is 2.5 m and the radius of influence is 120 m? The aquifer’s hydraulic conductivity and thickness are
75 m/day and 4 m, respectively.
a. 7.01 lps
b. 8.01 lps
c. 9.01 lps
d. 10.01 lps
a. 7.01 lps
What is the soil erosion of 10 T/ha/yr in mm/yr? Assume that the soil
bulk density is 1.2 T/m3.
a. 0.083 mm/yr c.0.83 mm/yr
b. 8.33 mm/yr d.80.33 mm/yr
c.0.83 mm/yr
An irrigation engineer, in his study, was able to establish that the
irrigation requirement of crop XYZ is 6.5 mm/day. If the rootzone depth was
estimated at 2 in. on the average, what should be the design discharge of a
canal to be able to deliver the 5-day requirement of a 10-ha farm in 24
hours?
a. 31.62 lps
b. 47.62 lps
c. 57.62 lps
d. 37.62 lps
d. 37.62 lps
The gross application depth is 93mm to irrigate a crop with a crop
coefficient of 0.9. The reference crop evapotranspiration is 6mm/day. If the
application efficiency is 70%, the irrigation interval is.
a. 10days
b.11days
c.12days
d.13days
c.12days
An irrigation engineer is to irrigate a crop planted in furrows of
100m x 100m area. It was found out that the inflow rate is 0.5 lps per 100 m. If he decides to have a furrow spacing of 50 cm and an application depth of 100 mm, determine:
The total time to irrigating the whole field.
a. 2.78 hrs c. 555.55 hrs
b. 27.8 hrs d. 2,000,000 sec
The time of irrigating each furrow.
a. 2.78 hrs c. 555.55 hrs
b. 27.8 hrs d. 2,000,000 sec
c. 555.55 hrs
a. 2.78 hrs
It is the soil moisture allowable depletion of most crops.
a. 50%
b. 20%
c. 80%
d. 100%
a. 50%
Wherein the surface is rarely wet since the water is supplied from the
soil underneath
a. Sprinkler irrigation
b. Sub-irrigation
c. Drip or trickle irrigation
d. Contour-ditch irrigation
b. Sub-irrigation
An internal condition of a seed or bud that prevents its prompt germinating
or sprouting under normal growth conditions:
a. dormancy
b. diffusion
c. germination
d. dominant
a. dormancy
The process of moisture lost of plants through the leaves:
a. germination
b. transpiration
c. oxidation
d. flowering
b. transpiration
A natural body composed of a variable mixture of broken and weathered minerals and decaying organic matter and when containing the proper amount of
air and water, supplies sustenance and gives mechanical support of plants:
a. fertilizer
b. soil
c. humus
d. mineral
b. soil
It involves controlled flooding from field ditches along the contour of
the land, which allows the water to flood down the slope between field
ditches without employing dikes or other means that guide or restrict its movement.
a.Sprinkler irrigation
b.Sub-irrigation
c.Level-border or basin irrigation
d.Contour-ditch irrigation
d.Contour-ditch irrigation
Similar to that of tertiary canals, the main systems (main and secondary
canals) also incur losses termed as conveyance losses. Seepage and
percolation losses and evaporation along the conveyance canals comprise the
conveyance losses.
a. Diversion Water Requirement (DWR)
b. Farm Water Requirement (FWR)
c. Irrigation Water Requirement (IWR)
d. Crop Water Requirement (CWR)
a. Diversion Water Requirement (DWR)
The common name for Capra hircus:
a. sheep
b. pig
c. mule
d. goat
d. goat
The ability of the stream to provide water determines the extent of the
total service area of a national irrigation system
a. Secondary canal
b. Main canal
c. Canal
d. Canal capacity
d. Canal capacity
The common name for Anser domesticus:
a. chicken
b. goose
c. duck
d. turkey
b. goose