2010 Flashcards
- If x + y = 1, X2 + y2 = 2, x4 + y4 =___?
5
cos 2x – sin^2x/cos x = ___?
A tractor must have a minimum forward pull velocity of:
8 kph
In FMR, it shall consist of the removal and disposal of deposits of saturated or unsaturated mixtures of soils and organic matter not suitable for foundation material regardless of the moisture content.
muck excavation
It shall consist of the excavation and disposal of all materials regardless of its
nature, not classified and included in the Bill of Quantities under other pay items.
Unclassified Excavation
It shall consist of igneous, sedimentary and metamorphic rocks which cannot be
excavated without blasting or the use of rippers, and all boulders or other detached
stones each having a volume of one (1) cubic meter or more as determined by
physical measurements or visually by the Engineer.
Rock Excavation
In FMR, the minimum hours before removal of forms is
24 hours
In PAES, what is the light intensity needed in the slaughter house inspection area?
220 lux
What is the minimum wind design speed or wind gusts in constructing green houses?
250 kph
What should be the height of the green house at the walkway or aisle?
2m
Given Q=5m3/s, V=1 m/s, R=0.8, b=3 m, d=0.5 m, what should be the channel side slope (multiple and similar problems)
An instrument used to measure temperature and water in the atmosphere or surrounding is?
thermometer
In the acronym “BIGSHOW”, what does S stands for?
solar
BIGSHOW
Biomass, Geothermal, Solar,
Hydro,
Ocean and
Wind Energy
Difference between the earliest time to finish time and latest time to finish (something like that)
Free Slack Time
Given: ET=5mm/day, P=5mm/day, 7-day requirement, and irrigation period=24 hours, Area=500 ha, Q=100L/hour. Determine the irrigation efficiency.
Given: area=600 ha, wheel slip=15%, wheel radius at hopper half-full=38cm, 10-row planter, spacing collected per seed tube when 600 wheel rotation for 10 minutes.
a. How many kilograms of seeds for the 600 rev of the GW?
b. What is the seeding rate of the seed planter?
c. How many kilograms of seeds needed in planting the 600 ha?
What instrument needed in measuring wind speed?
Anemometer
Type of precipitation where there is a lifting of warm air converging into a low pressure are
cyclonic precipitation
Precipitation which is caused by hills or mountain ranges deflecting the moisture-laden air masses upward, causing them to cool and precipitate their moisture.
orographic precipitation
Irrigation frequency is determined by:
climate, soil and crop
In the formula A=RKLSCP, where R=0.21, K=2, L=0.5, S=0.7, C=0.63 and P=0.10. Compute for the amount of sediment transported.
The discharge of the pump is 300 L/s at 4 meters head of water. If the efficiency of the pump and prime mover is 60% and 75%, respectively, what should be the size of the prime mover to maintain the said discharge?
What do you call the phenomena where plants flowers and speeds up in seed development under low temperature or when chilled?
vernalization
A beam needs 4 pcs of 20 mm RSB. If there is no available 20mm RSB, how many 16 mm RSB can substitute for 20mm?
5 pcs
If it is desired to have a maximum flow of water at any depth, the best canal cross-sction to be used is the:
trapezoidal
A law about water movement on a porous medium or soil is:
darcy’s law
Laminar flow has a Reynold’s Number of:
- How many outlets for a 15A overcurrent device?
6-8 outlets
In AUTOCAD, what is the command in creating or making a smooth edges or corners?
fillet
