ABEn 141 Farm Tractors Quiz

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Questions and Answers

Which statement best describes a 2-Wheel Drive (2WD) tractor?

It is typically more complex and has a higher initial cost.

It is ideal for working in muddy or sloped terrains.

It has power distributed to all four wheels.

It is better suited for dry, level, and firm terrains. (correct)

What is a key feature of a 4-Wheel Drive (4WD) tractor compared to a 2WD tractor?

Lower cost of maintenance.

Increased traction and stability. (correct)

Power is supplied only to the rear wheels.

Simplicity in design.

What classification identifies tractors with a power rating below 32 hp?

Compact Type (correct)

Standard Type

Heavy-Duty Type

Utility Type

Which of the following statements about the first four-wheel tractors in the Philippines is correct?

They were brought during the American occupation for sugar cane production. Signup and view all the answers

What type of power delivery is NOT associated with a 4-Wheel Tractor?

Static power at the wheel axles. Signup and view all the answers

What is the primary purpose of a tractor?

To draw or pull various implements in the farm. Signup and view all the answers

Which of the following horsepower ratings corresponds to a typical 2-wheel tractor?

3 hp to 15 hp Signup and view all the answers

Which type of 2-wheel tractor is most suitable for wet land operation?

Traction / Pull Type with steel cage wheels Signup and view all the answers

What classification does a 2-wheel tractor equipped with rotary blades for dry land operation fall under?

Rotary Type Signup and view all the answers

What does the acronym PTO refer to in the context of a general-purpose 2-wheel tractor?

Power Take-off Signup and view all the answers

Which of the following is NOT a classification according to the function of a 2-wheel tractor?

Heavy Lifting Type Signup and view all the answers

Where were the first 2-wheel tractors introduced that were specifically used for wetland rice cultivation?

Philippines Signup and view all the answers

What is a key characteristic of all tractors regarding their operation?

They all have hydraulic systems. Signup and view all the answers

What horsepower rating defines Standard Light Tractors?

32hp to 49hp Signup and view all the answers

What is the lift force in pounds for Category II tractors?

2,080 – 4,810 lbs Signup and view all the answers

Which of the following is a type of Roll-Over Protective Structure (ROPS)?

Two-Post ROPS Signup and view all the answers

In which horsepower range do Standard Heavy Tractors fall?

90hp and above Signup and view all the answers

What is the main focus of PAES 139:2004?

Roll Over Protective Structure (ROPS) Signup and view all the answers

What lift force range is associated with Category I tractors?

1,040 – 2,340 lbs Signup and view all the answers

What horsepower range defines Standard Medium Tractors?

70hp to 89hp Signup and view all the answers

Which document relates to 'Symbols for Operator’s Controls and Other Displays'?

PAES 105:2000 Signup and view all the answers

Signup and view all the answers

Study Notes

Agricultural and Biosystems Power Engineering (ABEn 141)

Course: ABEn 141 Agricultural and Biosystems Power Engineering
Semester: 1st Semester, A.Y. 2024-2025
Institution: Visayas State University

Lesson 15: Farm Tractors

Course: ABE 41 Agricultural and Biosystems Power Engineering
Instructor: Dr. Omar F. Zubia, UPLB
Topic: Farm Tractors

Learning Outcomes

Define tractor and its classification
Identify 2-wheel tractors by function
Identify 4-wheel tractors by horsepower rating
Identify common tractor symbols based on PAES standards

Tractor

Derived from the Latin word trahere, meaning "to draw"
A mechanical device powered by an engine, ranging from 3 hp to over 100 hp
Equipped with a transmission system that creates high torque on its wheels for pulling farm implements
Equipped with a hydraulic system for lifting and operating farm implements

Tractor Classification

1. Two-Wheel Tractor:
- Single-axle machine powered by an engine from 3 to 15 hp
- Also known as walking tractors or hand tractors
- First introduced in the Philippines from Japan in the 1960s for wetland rice cultivation
- Used for land preparation, planting, cultivating, harvesting, and transport
- Classification by Function:
  - Traction/Pull Type: Fitted with pneumatic tires for dry land, steel cage wheels for wet land, single or double bottom moldboard plows, and comb-tooth harrows
  - Rotary Type: Rotary blades attached to the wheel axle for dry land or front axle for wet land, often with floating devices for deep mud
  - General Purpose Type: Fitted with a drawbar for traction and a power take-off (PTO) for rotary work; often involves a detachable rotavator assembly powered by the PTO, with steering clutches and multiple speed transmissions including reverse.
2. Four-Wheel Tractor:
- Double-axle machine powered by an engine from 15 to over 100 hp
- Introduced to the Philippines during the American occupation for large-scale sugar cane production
- Power Delivery: Power delivered as draft at the drawbar, rotary at the PTO, and lifting at the hydraulic system
  - Implements mounted on the hydraulic-controlled three-point hitch system
- Types:
  - Two-Wheel Drive (2WD): Power supplied only to the rear wheels; suited for dry, level terrains; simpler design, lower cost, and lower maintenance; ideal for light-duty tasks and fields with good soil conditions
  - Four-Wheel Drive (4WD): Power distributed to all four wheels, increasing traction and stability; suited for rough, uneven, muddy, or sloped terrains; more complex design and higher initial cost; ideal for heavy-duty tasks, pulling large implements, and working in challenging conditions
- Classification by Horsepower:
  - Compact Type: Below 32 hp
  - Standard Type: Above 32 hp (Further categorized by specific horsepower ranges like 32-49 hp, 50-69 hp, 70-89 hp, and 90 hp and above, distinguishing light, light-medium, medium, and heavy tractor types respectively)

Tractor Categories (4-Wheel)

Drawbar Power: Ranges specified for categories I to IV
Lift Force: Ranges in lbs (kN) are also given for categories I to IV.

Roll-Over Protective Structure (ROPS)

Two-Post ROPS
Four-Post ROPS (Frame with Optional Canopy, Cab)

Commonly Used Tractor Symbols (PAES 105:2000)

Various symbols illustrated

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Description

Test your knowledge on farm tractors in Agricultural and Biosystems Power Engineering. This quiz covers tractor classification, types of tractors, and their functionalities. Enhance your understanding of tractors as essential farm equipment according to PAES standards.