MRII CHAPTER 1

Question 1

Refers to farm power and machinery for the production, harvesting,
processing, storage, manufacture, preserving, transporting and
distribution of agricultural and biological products/materials as well as
post harvest machines

Answer 1

Agricultural and Biosystems Power and
Machinery

Question 2

– Improving the Agriculture and Fisheries
Sector through Mechanization.

Answer 2

Agriculture and Fisheries Mechanization Law

Question 3

Republic Act 10601 (June 5, 2013)

Answer 3

Agriculture and Fisheries Mechanization Law

Question 4

It covers research, development,
and extension, promotion, distribution, supply, assembling,
manufacturing, regulation, use, operation, and maintenance of
project implementation of agricultural and fisheries machinery and
equipment.

Answer 4

Agriculture and Fisheries Mechanization Law

Question 5

Agricultural and Biosystems Engineering Law

Answer 5

Republic Act
10915 (July 21, 2016)

Question 6

An act strengthening, modernizing and
aligning the practice of agricultural engineering in the country into
the internationally recognized practice of agricultural and biosystems
engineering, and for other purposes.

Answer 6

Agricultural and Biosystems Engineering Law – Republic Act
10915 (July 21, 2016)

Question 7

consists of a mass of molecules that produces power
either heat, mechanical, electrical, chemical, or combinations of any
of them.

Answer 7

Energy

Question 8

Simply, it is the capacity of a physical system to perform
work.

Answer 8

Energy

Question 9

IT Is the rate at which energy is used or work is performed.

Answer 9

Power

Question 10

it is calculated by dividing energy with time.

Answer 10

Power

Question 11

IT Is the form of mechanical energy that
has something to do with the mass in motion.

Answer 11

Kinetic Energy

Question 12

is the form of energy associated with
the position of the force field

Answer 12

Potential Energy

Question 13

DIFFERENT FORMS OF ENERGY

Answer 13

KINETIC, POTENTIAL, THERMAL, CHEMICAL, ELECTRICAL, MAGNETIC, NUCLEAR, SOUND

Question 14

is the energy associated with random
molecular motions within any medium and is usually related to
the increase or decrease in the temperature of a substance.

Answer 14

Heat (Thermal) Energy

Question 15

– is the energy stored in certain chemicals
or materials that can be released by chemical reaction.

Answer 15

Chemical Energy

Question 16

– is closely related to electrical energy.
When magnetic field is created, a force to propel devices, like
motors, solenoid valve, door bell, create a work

Answer 16

Magnetic Energy

Question 17

is the form of energy generated by friction or
by chemical change, having magnetic chemical and radiant
effect.

Answer 17

Electrical Energy

Question 18

is a part of the energy of an atomic nucleus,
which can be released by fusion or fission or radioactive
decay.

Answer 18

Nuclear Energy

Question 19

– is the form of energy associated with the
vibration or disturbance of matter.

Answer 19

Sound Energy

Question 20

Energy can be changed from one form to another, but
it cannot be created nor destroyed.

Answer 20

First Law of Thermodynamics

Question 21

The total amount of energy and matter in the universe remains constant, merely changing from one form to another.

Answer 21

First Law of Thermodynamics

Question 22

“energy is always conserved, it is
neither created nor destroyed.”

Answer 22

First Law of Thermodynamics

Question 23

The First Law of Thermodynamics

Answer 23

Law of
Conservation

Question 24

“in all
energy exchanges, if no energy enters or leaves the system,
the potential energy of the state will always be less than that
of the initial state.”

Answer 24

The Second Law of Thermodynamics

Question 25

This is also commonly referred to as entropy. In the process of energy transfer, some energy dissipate as heat.

Answer 25

The Second Law of Thermodynamics

Question 26

These are the commonly and widely used sources of energy,

Answer 26

Conventional Energy Sources

Question 27

Conventional Energy Sources

Answer 27

fossil fuel, hydroelectricity, thermal power (from coal, mineral oil, natural gas), nuclear,

Question 28

Non-Conventional Energy Sources

Answer 28

solar, tidal, wind, biogas, and ocean thermal

Question 29

These are the new sources of energy

Answer 29

Non-Conventional Energy Sources

Question 30

They are also known as renewable energy sources.

Answer 30

Non-Conventional Energy Sources

Question 31

- is energy that comes from natural resources such as sunlight, wind, rain, tides, waves and geothermal heat

Answer 31

Renewable energy

Question 32

ENERGY THAT are naturally replenished at a constant rate.

Answer 32

Renewable energy

Question 33

- is a natural resource which cannot be reproduced, grown, generated, or used on a scale which can sustain its consumption rate.

Answer 33

Non-renewable resource -

Question 34

SOURCES OF ENERGY

Answer 34

Fuel Oil, Coal, Solar, Biomass, Wind, Hydro, Geothermal, Wave and Tidal, Ocean Thermal

Question 35

Fuel Oil

Answer 35

Gasoline, Diesel, Kerosene, etc.

Question 36

Solar

Answer 36

Solar Thermal and Photovoltaic

Question 37

Biomass

Answer 37

Direct Combustion, Gasification, Pyrolysis, and Biofuel

Question 38

Wind

Answer 38

Windmill, Windpump, Wind Turbine

Question 39

Generates power for farmstead such as lighting, driving motor, heating, etc.

Answer 39

Generator (Mechanical to Electrical)

Question 40

Provides power for various stationary farmstead equipment

Answer 40

Motor (Electrical to Mechanical)

Question 41

Provides power for both stationary and mobile agricultural machines and equipment

Answer 41

Engine (Heat to Mechanical)

Question 42

Supplies energy to propel high-speed equipment used to drive small generators and milling machines

Answer 42

Turbine (Kinetic to Mechanical)

Question 43

Provides steam for power generation and for various food processing operation

Answer 43

Boiler (Heat to kinetic energy)

Question 44

Supplies energy for drying, space heating, and others

Answer 44

Solar Collector (Solar radiation to heat energy )

Question 45

Provides power for lighting, water pumping,

Answer 45

Solar Cell (Light to Electricity)

Question 46

Runs small fan, cooling, etc.

Answer 46

Peltier Chip (Heat to Electricity)

Question 47

Burns fuel to produce heat for drying grains, kiln firing, tobacco curing, and others

Answer 47

Furnaces (Biomass to Heat)

Question 48

Produces heat for various applications and for powering gasoline or diesel engines.

Answer 48

Gasifier (Solid biomass to combustible gas)

Question 49

Produces heat for cooking and for fueling internal combustion engines.

Answer 49

Biogas Digester (Animal manure to combustible gas)

Question 50

the rate at which work is done. The rate at which an engine can do work, usually at 550ft-lb/sec or 76.2 kg-m/sec.

Answer 50

Horsepower

Question 51

the power developed in the cylinder of the engine by the burning of fuel.

Answer 51

Indicated Horsepower

Question 52

This can be computed as PLANn/c

Answer 52

Indicated Horsepower

Question 53

– the power available at the crankshaft of the engine which is usually measured using a dynamometer.

Answer 53

Brake Horsepower

Question 54

the power of the engine measured at the end of suitable belt receiving drive from the power take off (PTO) shaft of the tractor

Answer 54

Belt Horsepower

Question 55

the power delivered by a tractor through the PTO shaft.

Answer 55

PTO Power

Question 56

This is computed as, 2 𝝿 FRN/60 = 2 𝝿TN/60

Answer 56

PTO Power

Question 57

the power of a tractor measured at the end of the drawbar.

Answer 57

Drawbar Horse Power

Question 58

It is the power which is available to pull loads at a given speed.

Answer 58

Drawbar Horse Power

Question 59

This can be computed as FS/3.6

Answer 59

Drawbar Horse Power

Question 60

The power required to activate a hydraulic cylinder at a given pressure gage and flow of fluid.

Answer 60

Hydraulic Power

Question 61

This can be computed as pQ/1000

Answer 61

Hydraulic Power

Question 62

– is the power supplied by an electrical system required to drive a specific electrical equipment, like motor.

Answer 62

Electrical Power

Question 63

It can be computed as IE

Answer 63

Electrical Power

Question 64

It is the metric unit of energy.

Answer 64

Joule

Question 65

It is equal to force times the distance. One metric unit of force acting through one metric unit of distance.

Answer 65

Joule

Question 66

1 J

Answer 66

= 1 N-m = 0.737 ft-lb

Question 67

It is the amount of heat energy required to raise the temperature of one pound of water one degree Fahrenheit.

Answer 67

British Thermal Unit

Question 68

1 BTU

Answer 68

= 1.055 kJ = 778.17 ft-lb

Question 69

It is the amount of energy required to raise the temperature of one gram of water by one degree Celsius.

Answer 69

Calorie

Question 70

1 Cal

Answer 70

= 4.1868 J

Question 71

It is a force in pound acting on a distance of one foot.

Answer 71

Foot-Pound

Question 72

Foot-Pound

Answer 72

= (1/775) BTU = 1.355 N-m

Question 73

It is the rate of using energy.

Answer 73

Power

Question 74

It is usually expressed either in horsepower, watts, pferde starke, etc.

Answer 74

Power

Question 75

1 hp

Answer 75

= 745.7 W = 76.2 kg-m/sec = 2544.4 BTU/hr

Question 76

SOURCES OF POWER

Answer 76

Human Power, Animal Power, Mechanical Power, Electrical Power, Renewable Energy Technologies

Question 77

main source of power for operating small tools and implements

Answer 77

Human Power

Question 78

The average man power develops nearly.....

Answer 78

0.1 hp

Question 79

most important power on the farm and is estimated nearly 80 percent of the total draft power used in agriculture.

Answer 79

Animal Power

Question 80

Medium size bullock can develop between ...

Answer 80

0.5 to 0.75 hp.

Question 81

available through stationary engines and tractors.

Answer 81

Mechanical Power

Question 82

The efficiency of diesel varies between

Answer 82

32 to 38%

Question 83

The efficiency of petrol fuel varies between

Answer 83

25 to 32%

Question 84

Medium speed oil engines that are successfully used in the farms is at the range oF

Answer 84

14 to 20hp.

Question 85

commonly used in stationary equipment such as those in post-harvest and agricultural & food and processing plant.

Answer 85

Electrical Power –

Question 86

uses renewable energy, such as biomass, geothermal, solar, hydro, ocean, and wind, as source of power.

Answer 86

Renewable Energy Technologies

Question 87

The act regulating the practice of agricultural (agricultural and biosystems) engineering in the Philippines.

Answer 87

Republic Act No. 8559 (RA 10915)

Question 88

The process of raising the temperature of food and water mixture to 100°C and then allowing it to simmer until the exothermic reaction in the food is completed.

Answer 88

Steaming

Question 89

Moving air is an example of _________

Answer 89

KINETIC ENERGY

Question 90

A form of energy associated with the position of the force field.

Answer 90

Potential energy

Question 91

The law that states, “There is loss in the system as the energy is transformed in the system”.

Answer 91

2nd Law of Thermodynamics

Question 92

The law that states, “Energy can be created and destroyed”.

Answer 92

1st law of Thermodynamics

Question 93

One hundred BTU is equal to

Answer 93

105.5 kJ 0.105 MJ 77817 ft-lb

Question 94

An energy source that is commonly used, like crude oil and geothermal.

Answer 94

Conventional energy

Question 95

A mass of molecules that produces power either heat, mechanical, electrical, chemical or any of their combination.

Answer 95

a. Wood b. Gasoline c. Diesel d. LPG

Question 96

An example of non-conventional power source.

Answer 96

a. Photovoltaic cell b. Wind turbine c. Micro-hydro

Question 97

Which of the following is a non-renewable fuel a. Crude oil b. Natural gas c. Coal d. All of the above e. None of the above

Answer 97

e. None of the above

Question 98

Which of the following is higher? a. 1 Joule b. 1 N-m c. 0.737 ft-lb d. None of the above

Answer 98

d. None of the above

Question 99

Which of the following fuel contains methane and carbon dioxide gases? a. Producer gas b. Synthetic gas c. Natural gas d. None of the above

Answer 99

c. Natural gas

Question 100

Which of the following comes from crude oil? a. Gasoline b. Kerosene c. Diesel d. All of the above

Answer 100

d. All of the above

Question 101

A device used to convert mechanical power to electrical power.

Answer 101

Generator

Question 102

A device used to convert electrical power to mechanical power.

Answer 102

Motor

Question 103

The kilo calories of heat used per unit time.

Answer 103

Power

Question 104

A device that converts the potential energy of water into mechanical power that drives a generator.

Answer 104

turbine

Question 105

A solenoid valve operates based on .

Answer 105

. magnetic energy

Question 106

A device used to convert light to electricity.

Answer 106

Photovoltaic cell

Question 107

A device used to convert heat to electricity.

Answer 107

. Thermoelectric chip

Question 108

A device that converts heat into steam providing kinetic energy to produce mechanical power.

Answer 108

steamer

Question 109

A device that converts heat into electricity

Answer 109

Peltier chip

Question 110

Raising the temperature of water by heating it from 28° to 100°C is an example of .

Answer 110

sensible heat

Question 111

Mechanical to Electrical

Answer 111

Generator

Question 112

Electrical to Mechanical

Answer 112

Motor

Question 113

Heat to Mechanical

Answer 113

Engine

Question 114

Kinetic to Mechanical

Answer 114

Turbine

Question 115

Heat to kinetic energy

Answer 115

Boiler

Question 116

Solar radiation to heat energy

Answer 116

Solar collector

Question 117

Light to Electricity

Answer 117

Solar cell

Question 118

Peltier Chip

Answer 118

Heat to Electricity

Question 119

(Biomass to Heat)

Answer 119

Furnaces

Question 120

(Solid biomass to combustible gas)

Answer 120

Gasifier

Question 121

(Animal manure to combustible gas)

Answer 121

Biogas Digester