Agricultural and Biosystems Engineering Board Exam

8 kph

A tractor must have a minimum forward pull velocity of:

Muck Excavation

In FMR, it shall consist of the removal and disposal of deposits of saturated or unsaturated mixtures of soils and of the moisture content.

24 hours

In FMR, the minimum hours before removal of forms is

220 lux

In PAES, what is the light intensity needed in the slaughterhouse inspection area?

250 kph

What is the minimum wind design speed or wind gusts in constructing greenhouses?

2 meters

What should be the minimum height of the greenhouse at the walkway or aisle.

3 meters

For an earth dam of 15 meters maximum height, what should be the width of the crown?

Hygrometer (ex. Psychrometer)

An instrument used to measure temperature and water in the atmosphere or surroundings is?

Solar (Biomass, Geothermal, Solar, Hydro, Ocean and Wind Energy)

In the acronym "BiGSHOW, what does S stands for?

Anemometer

What instrument needed in measuring wind speed?

Cyclonic precipitation

Type of precipitation where there is a lifting of warm air converging to a low-pressure area.

Soil, crop, and climate

Irrigation frequency is determined by:

small engines

The following are locally fabricated in the Philippines except:

a) Thresher

b) small engines

c) hand tractor

d) float-assist tiller

Static Head

Free water surface in the well to the free water surface on the suction pipe is:

Vernalization

What do you call the phenomena where plant flowers speed up seed development under low temperatures or when chilled?

35-degree Celsius

What is the maximum concrete or concrete mix temperature during summer?

Column

A structure that supports only axial loadings is:

Trapezoidal

If it is desired to have a maximum flow of water at any depth, the best canal cross-section to be used is the:

Darcy's Law

A law about water movement on a porous medium or soil is:

Less than 2000

Laminar flow has a Reynold's number of:

8 to 10 outlets

How many outlets for a 15 A overcurrent device?

shunt-wound motor

What type of motor if the field current is in parallel with the motor?

Fillet

In AutoCAD, what is the command in creating or making a smooth edge or corner?

Two-unit system

In this system the sows and piglets remain in the farrowing house until the piglets are weaned.

0.28 cubic meter per minute

Minimum ventilation rates under normal condition for farrowing units (sow and litter)

Shed area - 4 m2/animal

Loafing area - 5m2/animal

Minimum floor space requirement for cattle.

Positive displacement pump

Type of pump that discharges the same volume of water regardless of the head against which they operate.

Variable displacement pump

Type of pump that has an inverse relationship between discharge rate and pressure head. A high-pressure head will result in a low discharge rate and vice versa.

Centrifugal pump

The most commonly used pump type for domestic and irrigation purposes.

Propeller pump

Type of pump used for low pressure head and high discharge. Extensively used for drainage pumping and the transfer of water from canals and rivers to adjacent fields

10 mm/day

According to the National Irrigation Administration (NIA), the water requirement for rice production is?

Belt or brake hp

The power developed at the belt pulley or crankshaft available for useful work.

Drawbar hp

Power developed at the hitch or drawbar and available for pulling, dragging or similar tractive efforts.

Thermal efficiency

Ratio of output in the form of useful mechanical power to the power value of the fuel consumed.

Mechanical efficiency

Ratio of the useful mechanical power to the total power generated by the engine.

300 - 900 rpm

RPM of medium speed engine

Otto cycle

The cycle referred to as gasoline cycle.

100% humidity

When the dry-bulb and wet-bulb are equal.

furrow irrigation

Irrigation system used for row crop where only a part of the surface is wetted.

coarse sand (2 to 0.2 mm), fine sand (0.2 to 0.02 mm), silt (0.02 to 0.002 mm), and clay (<0.002 mm)

The ISSS describes sand as soil particle

Water conveyance efficiency

The ratio of the water diverted from the source to the water delivered to the farm.

Cooling efficiency(?)

Ratio of the temperature decrease due to cooling of the air during drying to the temperature increase due to heating.

oil ring

It is a kind of piston ring located at the bottom of the piston. It allows oil to pass through to lubricate the cylinder walls.

Cetane

It is a measurement of the combustion quality of diesel fuel during ignition. Fuels with higher ratings have shorter ignition delays, providing more time for the combustion process to be completed. Engine operates well within the rating range of 40-55 while premium fuels can have as high as 60.

governor

It is a mechanical device which regulates the speed of rotation of an engine by controlling the amount of supply of fuel according to the load.

Watt

It is the unit of power equivalent to that of raising a mass of 75 kilograms against the earth's gravitational force over a distance of one meter in one second.

camshaft

It is a lobed shaft which usually runs parallel to the crankshaft. Its rotation effects the opening and closing of the intake and exhaust valves of an engine.

NOTA

Which one below is not a function of a lubricant?

a) lubricating

b) sealing

c) cooling

d) cleaning

e) none of the above

rouging

It is the term use to describe the process of removing plants with unwanted characteristics, small and undesirable plants.

a. culling

b. rouging

c. weeding

pruning

In horticulture, it is the removal or reduction of parts of a plant, tree, or vine that are not requisite to growth or production, are no longer visually pleasing, or are injurious to the health or development of the plant

width of cut

distance measured from the wing of share to the point of share

velocity

Pitot tube is an instrument used to determine what characteristic of fluid

steady

Darcy equation is used only to what type of flow?

pyrheliometer

An instrument that measures the intensity of sunshine radiation received at the earth's surface.

Atlantic

Almost 47% of the total drainage goes to what part of the world?

a. Pacific Ocean

b. Indian Ocean

c. Atlantic Ocean

d. Southern Ocean

5m

Pond area - 1500 m2

In small farm reservoir, what is the maximum height of earth embankment?

Area

What do you measure when using the coordinate method in surveying?

a) area

b) slope

c) elevation

d) distance

gridiron

Used if the entire area is to be drained and is usually more economic. Laterals enter the submain from one side only to minimize the double drainage that occurs near the submain

33.93 ft

How many ft of water are there in atm?

litter

It is the term used to piglets in one farrowing.

baffle board

A division in the biogas digester that prevents slurry from premature exit into sludge/outlet tank.

headworks

It refers to the composite part of the irrigation system that divert water from natural bodies of water such as river, stream and lakes.

effluent

It is the residue that comes out at the digester after the substrate is digested/ processed inside the digester.

1/3

Field Capacity can retain water against a tension of how many atmospheres?

heterosis

Second important reason for cross breeding. The term is used to explain the fact that hybrids or crossbreed are usually better off and more vigorous than their parents.

broad

type of terracing with 6-8 % slope.

priming

It consists of filling the casing with water so that air trapped in the pump does not hinder its operation and reduce efficiency

fine sand

very coarse sand: 2-1 mm

coarse sand: 1-0.5 mm

medium sand: 0.5-0.25 mm

fine sand: 0.25-0.1 mm

very fine: 0.1 mm - 0.05 mm

silt: 0.05-0.002 mm

clay < 0.002 mm

According to USDA soil classification, 0.1 mm is categorized as:

topographical survey

A type of survey that deals with the contour of the surveyed location.

physical survey

A type of survey that delineates buildings.

similar triangle

In measuring the distance between two points with an obstruction, what should be the method/s to be used?a.parallel

b. sway

c.similar triangle

d. all of the above

Blaney-Cridle

A method of measuring evaporation that uses climatological data

Penman

A method of measuring evaporation that uses energy

62 (UP reference)

59 (from other reference)

regular gasoline - 60 (UP)

diesel - 35 (UP)

What is the API of a premium gasoline?

Based on PAES 204:

Recovery - 97%

Threshing eff - 99.8%

In PAES 204, Mechanical Rice Thresher, what is the threshing recovery?

a. 87%

b. 97%.

c. 70%

d. 98%

an octagon inscribed in a circle 42 mm in diameter

What is the shape of Agricultural Engineers seal?

PTO power

PTO shafts deliver what type of power?

a. brake power

b. indicated power

c. pto power.

d. rated power

not less than 500 m2

In PAES 123, Seeder and Planter - Methods of Test, the minimum test trial for manual seeding implement is:

a. at least 1000m2

b. not less than 2500 m2

c. not less than 500 m2.

d. at least 100m2

specific tariff

A levy based upon the weight, quantity or the physical characteristics of the imported/exported merchandized.

hydrocarbon

It is the major component of crude oil.

Grashof number

it is a dimensionless number which approximates the ratio of the buoyancy to viscous forces acting on a fluid.

Lewis number

the ratio of thermal diffusivity to mass diffusivity.

Reynold's number

it is a dimensionless quantity that is used to determine the type of flow pattern as laminar or turbulent while flowing through a pipe

concurrent flow type.

continuous flow dryer wherein the product being dried moves in the same direction as drying air

wound rotor

is a variation of the three-phase induction motor, designed to provide high starting torque for loads with high inertia, while requiring very low current.

3.5%

Percent damage of Peanut Sheller

0.15 m

The diameter of tree will be measured at the height of 1.4 meters above the ground. Trees less than ___ in diameter will not be measured for payment

2m, 0.5m

In lateral and sub-lateral canal where the available roadway width is 3 meters, the carriageway width shall be ___ meters and the shoulder width shall be __ meters.

15 mm

In rubber for rice mill, the rubber shall have a minimum thickness

user coordinate system

in AutoCAD, what is UCS

1.5 %

For concrete, the maximum slope shall be ___ from the center line towards the ditch

base course

The layer of aggregate, soil-treated aggregate, treated soil, or soil aggregate that rests upon the Subbase or if no Subbase, upon the sub-grade.

30 m

The milking parlor shall be located close to the confinement to optimize animal flow.The minimum distance of the milking parlor shall be __ away from lactating barn

10m x 30m

Warehouse Dimension for 10,000 cavans

0.28 m3/min

Minimum ventilation rates under normal conditions of farrowing unit

The inside slope (IS) shall be equal to 3:1 (H:V) while the outside slope (OS) shall be equal to 2:1.

slope of SFR

1.5 %

Slope of concrete carriageway in FMR

perfectly elastic

In economics extreme elasticity where even if you do not change the price there is a change in demand

cyclonic/frontal precipitation

Type of precipitation associated with the movement of air masses from high pressure regions to low pressure regions

infiltration rate and cumulative infiltration

The Green Ampt Equation is use for computing