Dr. Tambong Flashcards by Jumely Arendon

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.
A. Force
B. Power
C. Work
D. Energy

B. Power

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What is the battery nominal voltage of a 4-wheel 90-hp tractor?
A. 12 Vac
B. 24 Vdc
C. 9 Vdc
D. 12 Vdc

D. 12 Vdc

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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?
A. Series
B. Parallel
C. Series-Parallel
D. Any connection

A. Series

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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?
A. Series
B. Parallel
C. Series-Parallel
D. Any connection

B. Parallel

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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?
A. Brake
B. Clutch
C. Clutch and Brake
D. Accelerator

B. Clutch

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To gradually move a tractor from stop, what should be released while pressing the accelerator?
A. Brake
B. Clutch
C. Clutch and Brake
D. Lever

B. Clutch

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To roll the tractor set at first gear in a flat land, what should be foot-pressed?
A. Brake
B. Clutch
C. Clutch and Brake
D. Accelerator

D. Accelerator

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To slow down the tractor running at first gear in a flat land, what should be foot-pressed?
A. Brake
B. Clutch
C. Clutch and Brake
D. Accelerator

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

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To gradually stop a fast running tractor, what should be foot-pressed?
A. Brake
B. Clutch
C. Clutch and Brake
D. Accelerator

C. Clutch and Brake

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What is the safest gear setting for a descending tractor in a 10% slope?
A. Neutral
B. Third gear
C. Second gear
D. First gear

D. First gear

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In a routinary check before using the tractor, what should be checked first?
A. Fuel
B. Water
C. Brake
D. Oil

C. Brake

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To roll a tractor from stop and neutral position with engine off in a sloping land, what should be foot-pressed?
A. Brake
B. Clutch
C. Clutch and Brake
D. Lever

B. Clutch

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The connection to the tractor of an erratic battery is to be stopped quickly. What battery terminal should be disconnected first?
A. Positive
B. Negative
C. Both terminals
D. Any terminal

A. Positive

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A new battery is to be installed to a tractor. What battery terminal should be connected first?
A. Positive
B. Negative
C. Both terminals
D. Any terminal

B. Negative

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The battery drains while tractor is not in use. What battery terminal should be disconnected when tractor is not in use?
A. Positive
B. Negative
C. Both terminals
D. Any terminal

A. Positive

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What kind of hitch is best for a non-hydraulic disk plow?
A. 1-point hitch
B. 2-point hitch
C. 3-point hitch

C. 3-point hitch

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What kind of hitch is best for a tractor trailer?

A. 1-point hitch
B. 2-point hitch
C. 3-point hitch
D. 4-point hitch

A. 1-point hitch

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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?
A. One
B. Two
C. Three
D. Four

B. Two

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

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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?
A. Two
B. Four
C. Six
D. Eight

B. Four

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

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In an aerogenerator exceeding 100 kw capacity, which part is responsible in converting rotational movement to
electricity?
A. Rotor
B. Turbine
C. Alternator
D. Governor

C. Alternator

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What component of force is used in multi-bladed windmills?
A. Lift force
B. Drag force
C. Side force
D. Drop force

A. Lift force

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What component of force used in savionius windmills?
A. Lift force
B. Drag force
C. Side force
D. Drop force

B. Drag force

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The type of pump is appropriate for multi-bladed windmills.
A. Hydraulic
B. Pneumatic
C. Reciprocating
D. Diaphragm

C. Reciprocating

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While the windmill is in operation, what efficiency can exceed 100%?
A. Volumetric
B. Transmission
C. Rotor
D. All of the above

A. Volumetric

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What wind energy resource is located about 10-16 km from Earth surface with velocity over 150 kph? A. Terrestrial wind B. Extra-terrestrial wind C. Jet stream D. High wind

C. Jet stream

In multi-bladed windpumps, which part is responsible in converting rotational movement to reciprocating action? A. Rotor B. Connecting rod C. Reciprocating pump D. Crank arm

B. Connecting rod

What tail type of multi-bladed windpump is more effective for windy areas? A. Hinged side vane B. Ecliptic C. Manual folding D. No tail

A. Hinged side vane

In wind farm development, which should be done first? A. Rotor B. Energy demand survey C. Transmission D. Wind velocity measurement

D. Wind velocity measurement

In multi-bladed windpump manufacturing, which should be done first? A. Rotor blade B. Rotor frame C. Tower D. Jig

D. Jig

To have bigger water displacement volume in windpumps, which should be increased? A. Connecting rod length B. Rotor diameter C. Crank arm D. Well diameter

C. Crank arm

In windmill design, what should be the average rotor blade twist angle in degrees to have a tip speed ratio of 1:1? A. 30 B. 45 C. 60 D. 75

B. 45

If typical overall efficiency of savonius windmills is 7-10%, what is the typical overall efficiency of aerogenerators? A. 7-10% B. 15-17% C. 18-21% D. 90-95%

D. 90-95%

Which battery is designed for slow charging and slow discharging? A. Maintenance-free battery B. Automotive battery C. Solar battery D. All of the above

C. Solar battery

Kind of battery useful in solar-powered energy systems. A. Lead-acid battery B. Automotive battery C. Solar battery D. All of the above

D. All of the above

Material used in solar cells. A. Silicon B. Boron C. Equal silicon and boron D. Silicon with little boron

D. Silicon with little boron

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? A. 20-22 V B. 16-19 V C. 14-15 V D. 11-13 V

B. 16-19 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? A. 20-22 V B. 16-19 V C. 14-15 V D. 11-13 V

A. 20-22 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? A. 20-22 V B. 16-19 V C. 14-15 V D. 11-13 V

D. 11-13 V

In solar panel installation, which positive polarity wire should be connected last to the battery control unit? A. Solar module B. Load C. Battery D. Monitor

C. Battery

If a coconut tree shades half of solar module, which condition is true? A. Zero voltage B. Low voltage C. Zero amperage D. Low amperage

D. Low amperage

A 260 kw hydro power plant is classified as A. Microhydro B. Minihydro C. Small hydro D. Big hydro

B. Minihydro

Under Philippine classification, what is the maximum power rating for microhydro? A. 25 kw B. 50 kw C. 75 kw D. 100 kw

D. 100 kw

Refers to machines collectively. A. Equipment B. Tools C. Machinery D. Machineries

C. Machinery

The process of dealing with or controlling things. A. Management B. Managing C. Supervising D. Administering

A. Management

The action of promoting and selling products or services, including market research and advertising. A. Certifying B. Marketing C. Endorsing D. Recommending

B. Marketing

Which one is a part of a vertical feed mixer? A. Screw B. Hopper C. Discharge chute D. AOTA

D. AOTA

A feed mixer tested to have mixing coefficient of variation of 10-15% is rated as A. Poor B. Fair C. Good D. Very good

C. Good

As a standard, stripping efficiency of the mechanized stripping machine shall be at least A. 70% B. 80% C. 85% D. 90%

B. 80%

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? A. Increase blades B. Decrease blades C. Increase twist angle D. Decrease twist angle

A. Increase blades since increasing blades increasing torque

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? A. Enlarge rotor B. Reduce rotor C. Elongate crank arm D. Enlarge pump diameter

Answer: C (since elongating crank arm increases pump stroke and volumetric efficiency)

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? A. Number of blades B. Rotor radius C. Crank arm D. Tower height

Answer: D (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 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? A. 300 kg/h B. 250 kg/min C. 600 kg/h D. 600 kg/min

B. 250 kg/min Solution: Poil = Weight of crude oil collected / Total time = 750 kg /3 h = 250 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? A. 653 kg/h B. 563 kg/h C. 365 kg/h D. 635 kg/h

B. 563 kg/h Pcake = Weight of resulting cake produced / Total time = (4,500 kg seed – 2,250 kg oil) /4 h = 562.5 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? A. 745 kg/h B. 475 kg/h C. 547 kg/h D. 574 kg/h

B. 475 kg/h Pcake = [(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

The benefits to society regardless of who in the society receives the benefits. A. Financial benefit B. Economic benefit C. Revenue D. Sales

B. Economic benefit

Benefits less costs excluding depreciation. A. Profit B. Net benefit C. Cash flow D. Economic benefits

A. Profit

Which one is a one-time expense? A. Investment B. Single cost C. One-time cost D. Operating cost

A. Investment

Annually recurring cost. A. Investment B. Operating cost C. Contingency D. Operating capital

B. Operating cost

Land is an example of A. Investment B. Operating cost C. Contingency D. Operating capital

A. Investment

. Manager’s salary is an example of A. Investment B. Operating cost C. Contingency D. Operating capital

B. Operating cost

The cash component of investment. A. Cash investment B. Operating cost C. Contingency D. Operating capital

D. Operating capital

Contingency is normally what percentage of investment cost? A. 5% B. 10% C. 15% D. 20%

B. 10%

The scrap value of a property? A. Salvage value B. Economic value C. Book value D. End value

A. Salvage value

What is market price deducted by tax. A. Discounted price B. Taxed price C. Shadow price D. Economic price

C. Shadow price

The equivalent value of a property at any given year. A. Salvage value B. Economic value C. Book value D. End value

C. Book value

What feasibility indicator is best for determining how What feasibility indicator is best for determining how fast the project recovers the investment? A. NPV B. IRR C. BCR D. Payback

D. Payback

What feasibility indicator is best for determining how much can you gain from a certain project? A. NPV B. IRR C. BCR D. Payback period

A. NPV

. What feasibility indicator is normally compared to bank’s interest rate? A. NPV B. IRR C. BCR D. Payback period

B. IRR

Which among the feasibility indicators is best for determining project performance? A. NPV B. IRR C. BCR D. Payback period

A. NPV

What analysis is done to determine the degree of project feasibility at various scenarios? A. Financial analysis B. Economic analysis C. Risk analysis D. Sensitivity analysis

D. Sensitivity analysis

What feasibility analysis uses shadow prices? A. Financial analysis B. Economic analysis C. Risk analysis D. Sensitivity analysis

B. Economic analysis

What feasibility analysis uses market prices? A. Financial analysis B. Economic analysis C. Risk analysis D. Sensitivity analysis

D. Sensitivity analysis

Which situation is better and attainable for a good economy? A. High discount rate B. Low discount rate C. Fast discount rate. D. No discount rate

B. Low discount rate

The normal combined discount and inflation rate of the Philippines. A. 2-4% B. 5-7% C. 8-12% D. 16-20%

C. 8-12%

The discounted cash flow at project start is always equal to ____ A. Zero B. Net benefit C. Net profit D. Net cash flow

D. Net cash flow

The price at which there is no loss or gain. A. Discounted price B. Optimum price C. Minimum price D. Break-even price

D. Break-even price

The discount rate when the Net Present Value is zero. A. Break-even rate B. IRR C. BCR D. ROI

B. IRR

What is the effect of increasing inflation rate to discounted cash flow at project start? A. Increases B. Decreases C. Fluctuates D. None

D. None

. What is the effect of increasing discount rate to discounted cash flow at year 10 of the project? A. Increases B. Decreases C. Fluctuates D. None

B. Decreases

Which one is true when discount rate increases? A. NPV increases B. NPV decreases C. Risk decreases D. Capital reduces

B. NPV decreases

In what year was the Implementing Rules and Regulations (IRR) of the Philippine Agricultural and Biosystems Engineering Act of 2016 approved? A. 2016 B. 2018 C. 2020 D. 2022

D. 2022

What law is known as the Philippine Agricultural and Biosystems Engineering Act of 2016? A. RA 9513 B. RA 10601 C. RA 10915 D. RA 9736

C. RA 10915

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. A. Agriculture B. Engineering C. Science D. Engineering science

D. Engineering science

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. A. Agriculture B. Aquaculture C. Farm D. Land

B. Aquaculture

Agricultural and Biosystems Engineer refers to a person who is registered and licensed to practice agricultural fnd biosystems engineering in the country and who holds a ________ and professional identification card from the Board of Agricultural and Biosystems Engineering and the PRC. A. Degree B. BSABE degree C. Experience D. Valid certificate of registration

D. Valid certificate of registration

Agricultural and Biosystems Automation and Instrumentation refers to the use and application of agricultural and biosystems ________. A. Circuits B. Instruments C. Sensors D. Integrated circuits

C. Sensors

Agricultural and Biosystems Resource Conservation and Management refers to measures of conservation and proper management of agricultural and _______ resources A. Biological . Zoological C. Farm D. Water

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. A. Quality control B. Forestry C. Bio-processing D. Fishery

C. Bio-processing

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. A. Computer B. Geographic Information C. Modeling D. Bio-information

D. Bio-information

. Agricultural and Biosystems Power and Machinery refers to farm power and machinery for the production, harvesting, processing, storage, manufacture, preserving, transporting and _____ of agricultural and biological products/materials. A. Distribution B. Quality control C. Marketing D. Sales

A. Distribution

. Agricultural and Biosystems Buildings and Structures refer to buildings and structures for the production, harvesting, processing, storage, ______, preserving, transporting and distribution of agricultural and biological products/materials. A. Treatment B. Manufacture C. Quality control D. Sales

B. Manufacture

In Section 36 or ABE law, the existing Philippine Agricultural Engineering Standards (PAES) shall be transformed into a Philippine Agricultural and Biosystems Engineering Standards and shall serve as Code of ______ Standards. A. AE B. ABE C. Technical D. Engineering

C. Technical

The ____ earned by the professional shall be required in the renewal of professional license. A. Degree B. BSAE degree C. BSABE degree D. CPD credit units

D. CPD credit units

Any person who violates any of the provisions of RA 10915, upon conviction, shall be penalized by a fine of not less than P100,000 but not more than ___, or imprisonment of not less than 6 months but not more than 5 years, or both fine and imprisonment, at the court discretion. A. P200,000 B. P300,000 C. P400,000 D. P500,000

D. P500,000

. In Section 17 of RA 10915, which one is not a scope of Land and Water Resources Engineering? A. Irrigation B. Soil and water C. Aquaculture D. Meteorology

D. Meteorology

Which republic act is known as the Philippine Agri-Fishery Mechanization Law? A. RA 9513 B. RA 10915 C. RA 10601 D. RA 9736

C. RA 10601

Under Washington Accord, an Agricultural and Biosystems Engineer who passed licensure examination in the Philippines can practice his/her profession in another Washington Accord member country. A. Yes B. No C. Indeterminate D. Insufficient data to determine

A. Yes

In Washington Accord, the contract of ABE services signed in the Philippines is valid in another Washington Accord member country. A. Yes B. No C. Indeterminate D. Insufficient data to determine

B. No

As provided in Article V Section 20 of AFMech Law, all agricultural and fisheries machinery manufacturers, fabricators, assemblers, and importers must register with the __________. A. BAFE B. AMTEC C. DTI D. LTO

A. BAFE

As provided in Article VI Section 27 of AFMech Law, the ___________ is designated as the premier and reference testing center in the country for agricultural and fisheries machinery. ________. A. BAFE B. AMTEC C. IPO Philippines D. BAFS

B. AMTEC