AREA 1 Tambong

NPV (Net Present Value)

Which among the feasibility indicators is best for determining project performance?

Solar battery

Which battery is designed for slow charging and slow discharging?

Investment

Which one is a one-time expense?

All of the above

Which one is a part of a vertical feed mixer? *Screw *Hopper *Discharge chute *All of the above

NPV decreases

Which one is true when discount rate increases?

Low discount rate

Which situation is better and attainable for a good economy?

Volumetric

While the windmill is in operation, what efficiency can exceed 100%?

Payback period

What feasibility indicator is best for determining how fast the project recovers the investment?

NPV (Net Present Value)

What feasibility indicator is best for determining how much can you gain from a certain project?

IRR (Internal Rate of Return)

What feasibility indicator is normally compared to bank's interest rate?

100 hp P = W/t x conversion factor = 149.2 kw-hrs/2hrs x 1 hp/0.746 kw = 100 hp

What is the actual horsepower of a tractor which can do 149.2 kw-hrs of work in 2 hours?

12 Vdc

What is the battery nominal voltage of a 4-wheel 90-hp tractor?

Decreases

What is the effect of increasing discount rate to discounted cash flow at year 10 of the project?

None

What is the effect of increasing inflation rate to discounted cash flow at project start?

0.03 kwh/kg

What is the electrical energy consumption of a 30-kw vermin cast production shredder plugged in a 220-volt source if it requires 3 hours to shred 3 tonnes of farm waste?

First gear

What is the safest gear setting for a descending tractor in a 10% slope?

1,750 tonnes Wt = Input Rate x (Peak Operating Time + Lean Operating Time) = [0.3 tonne/h][ (16 h/d x 30 d/mo x 4 mo/yr)+ (8 h/d x 26 d/mo x 8 mos/yr)] = 1,075 tonnes/yr

What is the weight of agricultural waste that is needed annually to optimally operate a 26-ampere 6-kw vermi cast production shredder having a capacity of 0.3 tonne of waste per hour? It optimally operates 16 hours daily during the 4-month peak sunny months and 8 h/day at 26 days/month for the rest of the year.

3-point hitch

What kind of hitch is best for a non-hydraulic disk plow?

1-point hitch

What kind of hitch is best for a tractor trailer?

RA 10915

What law is known as the Philippine Agricultural and Biosystems Engineering Act of 2016?

Hinged side vane

What tail type of multi-bladed windpump is more effective for windy areas?

Jet stream

What wind energy resource is located about 10-16 km from Earth surface with velocity over 150 kph?

Economic analysis

What feasibility analysis uses shadow prices?

475 kg/h P= [(Wt. of copra input - Wt. of crude oil collected )/ Total time] x Eff = [(10,000 kg - 5,000 kg) /10 h] x 0.95 = 475 kg/h

A 10-tonne capacity coconut oil expeller was loaded full with grated copra. It produced 5,000 kg of crude oil in 10 hours. What is the copra cake production rate of the machine at 95% cake collection efficiency?

Four Solution: No. of solar modules in series = 12v/6v = 2 modules Total no. of solar modules = Modules in series x Modules in parallel = 2x2 = 4 modules

A 12-volt battery of a boom sprayer needs to be charged on field using 6-volt solar modules with 2 modules in parallel to speed up charging. How many solar modules are required?

250 kg/min P = Weight of crude oil collected / Total time = 750 kg /3 h = 250 kg/h

A 2-tonne capacity Jatropha oil expeller was loaded full with dried Jatropha seeds in 3 minutes. It produced 750 kg of crude oil in 3 hours. What is its crude oil production rate?

Two (Solution: Minimum no. of modules = No. of solar modules in series = 24v/12v = 2 modules)

A 24-volt battery of a pineapple harvesting conveyor needs to be charged on field using 12-volt solar modules. What is the minimum number of solar modules required?

Minihydro

A 260 kw hydro power plant is classified as

Tower height (windspeed is higher at higher elevation; increasing rotor radius will severely affect twist angle of entire blade & tip-speed ratio; aerogenerators have no crank arm)

A 3-bladed 40-meter tall aerogenerator with 20 meters rotor radius designed for 6 m/s wind can't rotate. Average windspeed at rotor center is 5.5 m/s. Which part needs to be increased?

Increase blades (since increasing blades increases torque)

A 6-bladed windmill with 8 meters rotor diameter and 45 degrees twist angle is to be modified due to insufficient starting torque. What should be done?

Yes (if it is feasible at 12% discount rate, the more it will be feasible at 9%)

A banana production and export project is being evaluated for financial feasibility. At 12% annual discount rate, it has the following feasibility indicators: net present value of 1.8 billion pesos and internal rate of return of 58%. If annual discount rate drops to 9%, will it be feasible?

563 kg/h P = Weight of resulting cake produced / Total time = (4,500 kg seed - 2,250 kg oil) /4 h = 562.5 kg/h

A castor bean oil expeller was loaded with 4.5 tonnes dried castor bean seeds. It produced 2,250 kg of crude oil in 4 hours. What is its castor bean cake production rate?

Good

A feed mixer tested to have mixing coefficient of variation of 10-15% is rated as

Negative

A new battery is to be installed to a tractor. What battery terminal should be connected first?

Clutch

A tractor cannot start due to defective battery. It is being pushed by workers while lever is set to first gear. What should be foot-pressed and released abruptly to start engine?

Elongate crank arm (since elongating crank arm increases pump stroke and volumetric efficiency)

A windmill with 6 meters rotor diameter, 5 cm pump diameter and 2 cm crank arm is to be modified due to low volumetric efficiency. What should be done?

Sensors

Agricultural and Biosystems Automation and Instrumentation refers to the use and application of agricultural and biosystems ________.

Valid certificate of registration

Agricultural and Biosystems Engineer refers to a person who is registered and licensed to practice agricultural and biosystems engineering in the country and who holds a ________ and professional identification card from the Board of Agricultural and Biosystems Engineering and the PRC.

Engineering science

Agricultural and Biosystems Engineering refers to the application of ________ and designs to the processes and systems involved in the sustainable production, post production and processing of safe food, feed, fiber, timber and other agricultural and biological materials and the efficient utilization, conservation, and management of natural and renewable resources in order to enhance human health in harmony with the environment.

Biological

Agricultural and Biosystems Resource Conservation and Management refers to measures of conservation and proper management of agricultural and _______ resources.

Bio-information

Agricultural and _______ System refers to utilization of information systems, database, and other information management tools for agricultural use, biological systems modeling to understand the mutual response between life and the environment.

11-13 V

At 8:00 P.M. in the Philippines, what is the likely voltage reading of a solar home system when all loads are turned on?

-7 (At project start or time=0, the discounted cash flow is also equal to the net cash flow)

At project start, the net cash flow of the cassava processing venture is -7 million pesos due to loan and revenue is not materialized yet. Discount rate is 10%. What is the value of the discounted cash flow in million pesos at project start?

Operating cost

Annually recurring cost

80%

As a standard, stripping efficiency of the mechanized stripping machine shall be at least

Cash flow

Benefits less costs excluding depreciation.

10%

Contingency is normally what percentage of investment cost?

Sensitivity analysis

What analysis is done to determine the degree of project feasibility at various scenarios?

Lift force

What component of force is used in multi-bladed windmills?

Drag force

What component of force is used in savonius windmills?

Low amperage

If a coconut tree shades half of solar module, which condition is true?

3 m/s Windspeed = tip speed, since tip-speed ratio is 1:1 = 3.2 m/s

If a multi-bladed windpump has a tip-speed ratio of 1:1, what windspeed is needed to have its rotor tip move at 3.2 m/s?

90-95%

If typical overall efficiency of savonius windmills is 7-10%, what is the typical overall efficiency of aerogenerators?

Aquaculture

In ABE law, agricultural and biosystems consist of crops, forestry and other plants, poultry, livestock, fisheries and _____ resources and other animals, wildlife and other living things.

Bio-processing

In RA 10915, agricultural and _________ refers to local activity or series of activities to maintain or raise the quality or change the form or characteristics of agricultural, fishery, forestry and biological products/materials.

Brake

In a routinary check before using the tractor, what should be checked first?

20-22 V

In a sunny 12:00 noon in the Philippines, what is the likely voltage reading of solar battery charger when no battery is being charged?

16-19 V

In a sunny 12:00 noon in the Philippines, what is the likely voltage reading of solar pump without battery when load is in turned on?

Alternator

In an aerogenerator exceeding 100 kw capacity, which part is responsible in converting rotational movement to electricity?

Jig

In multi-bladed windpump manufacturing, which should be done first

Connecting rod

In multi-bladed windpumps, which part is responsible in converting rotational movement to reciprocating action?

Battery

In solar panel installation, which positive polarity wire should be connected last to the battery control unit?

2022

In what year was the Implementing Rules and Regulations (IRR) of the Philippine Agricultural and Biosystems Engineering Act of 2016 approved?

Wind velocity measurement

In wind farm development, which should be done first?

45

In windmill design, what should be the average rotor blade twist angle in degrees to have a tip speed ratio of 1:1?

Lead-acid battery Automotive battery Solar battery

Kind of battery useful in solar-powered energy systems.

Investment

Land is an example of

Operating cost

Manager's salary is an example of

Silicon with little boron

Material used in solar cells.

Microhydro (since its IRR is higher than discount plus inflation rate)

Microhydro, solar electrification and covered lagoon biodigester projects are evaluated for financial feasibility. Each requires PHP 20,000,000 investment. Only one project can be funded. The financial internal rates of return are 15%, 9% and 8%, respectively. Annual discount plus inflation rate is 10%. Which project shall be implemented?

Machinery

Refers to machines collectively.

Parallel

The 12-volt battery of a boom sprayer was drained. A 12-volt battery attached to a vehicle can be used for starting the engine. Jumper wires are available. What should be the connection of the two batteries to facilitate starting?

Marketing

The action of promoting and selling products or services, including market research and advertising.

Positive

The battery drains while tractor is not in use. What battery terminal should be disconnected when tractor is not in use?

Series

The battery of a 24-volt combine harvester needs to be replaced. Two 12-volt batteries are to be used as its replacement. What should be the connection of the batteries?

Economic benefit

The benefits to society regardless of who in the society receives the benefits

Operating capital

The cash component of investment.

Positive

The connection to the tractor of an erratic battery is to be stopped quickly. What battery terminal should be disconnected first?

IRR

The discount rate when the Net Present Value is zero.

Net cash flow

The discounted cash flow at project start is always equal to ____.

Book value

The equivalent value of a property at any given year.

Management

The process of dealing with or controlling things.

Salvage value

The scrap value of a property?

8-12%

The normal combined discount and inflation rate of the Philippines

Break-even price

The price at which there is no loss or gain.

Power

The time rate of doing work or delivering energy, expressed as the amount of work done W or transferred energy divided by the time elapsed t or computed as W/t

Reciprocating

The type of pump is appropriate for multi-bladed windmills

Clutch

To gradually move a tractor from stop, what should be released while pressing the accelerator?

Clutch and Brake

To gradually stop a fast running tractor, what should be foot-pressed?

Crank arm

To have bigger water displacement volume in windpumps, which should be increased?

Clutch

To roll a tractor from stop and neutral position with engine off in a sloping land, what should be foot-pressed?

Accelerator

To roll the tractor set at first gear in a flat land, what should be foot-pressed?

Clutch (Clutch is better than clutch and Brake since purpose is only to slow down)

To slow down the tractor running at first gear in a flat land, what should be foot-pressed?

Financial analysis

What feasibility analysis uses market prices?

100 kw

Under Philippine classification, what is the maximum power rating for microhydro?

SSIP (In econ. analysis, NPVof 0 is feasible since it has economic benefits even if it is just break-even)

Using economic feasibility analysis, the Net Present Values (NPVs) of small water impounding project (SWIP), shallow tubewell, small scale irrigation project (SSIP) are -0.5, -0.9 and 0 million pesos, respectively. The proposed projects are owned by the government. Which project is economically feasible?

Farm-to-market road (since only Farm-to-Market road project has IRR higher than discount plus inflation rate)

Using financial feasibility analysis, the Net Present Values (NPVs) of farm-to-market road, irrigation and flood control projects are 22.5, 7.5 and -3.1 million pesos, while the Internal Rate of Returns (IRRs) are 15%, 7% and 2.1%, respectively. Annual discount plus inflation rate is 10%. Which project shall be implemented?

Php 281,250 Solution: Depreciation = (Php2,500,000-Php250,000)/8 years = Php 281,250/year

Using simplest computation method, what is the annual depreciation of a tractor purchased at Php 2,500,000 if its life span is assumed at 8 years? Salvage value is 10%.

Php1,825,000 Depreciation = (Php2,500,000-Php250,000)/10 years = Php 225,000/year Book value = Purchase price - total depreciations = Php2,500,000-(Php225,000/yr x3yrs) = P1,825,000

Using straight line depreciation method, what is the book value at the end of the third year of a tractor purchased at Php 2,500,000 if its life span is assumed at 10 years? Salvage value is 10%.