Engineering Materials and Equipment (PAES 125)
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Questions and Answers

What is the warranty period for the rotating impact-driven type sprinkler head?

  • One year
  • Two years
  • Three months
  • Six months (correct)

    • For a riser mounted non-rotating sprinkler, what is the maximum nozzle height above collector?

  • 915 mm
  • 460 mm (correct)
  • 1830 mm
  • 1200 mm

    • What is the carbon content required for the hitch frame of a walking-type agricultural tractor?

  • 0.18-0.23% (correct)
  • 0.30-0.35%
  • 0.10-0.15%
  • 0.40-0.45%

    • What is the required carbon content for carbon steel used in drilling rigs?

    <p>At least 80%</p> Signup and view all the answers

    What is the volumetric efficiency minimum requirement for the lever-operated knapsack sprayer?

    <p>80%</p> Signup and view all the answers

    What is the minimum warranty period specified for electric motors?

    <p>Six months</p> Signup and view all the answers

    Which power rating corresponds to a service factor of 1.35?

    <p>0.12 to 0.25 kW</p> Signup and view all the answers

    What is the required minimum capacity for a tank used in conjunction with electric motors?

    <p>10 liters</p> Signup and view all the answers

    At what distance and height should noise measurements be taken for small engines?

    <p>200 rpm, 7.5 m away, 1.2 m high</p> Signup and view all the answers

    Which material is specified for the moldboard plow?

    <p>Carbon steel</p> Signup and view all the answers

    What is the speed range for two-wheel tractor-drawn plows?

    <p>3 kph to 4 kph</p> Signup and view all the answers

    Which material is most likely used for the shanks of a field cultivator?

    <p>Alloy steel (e.g. AISI 5160)</p> Signup and view all the answers

    What is the warranty period for the spring-tooth harrow?

    <p>One year</p> Signup and view all the answers

    What depth can the spring-tooth harrow reach?

    <p>50 to 150 mm (2” to 6”)</p> Signup and view all the answers

    What is the field efficiency benchmark stated for a field cultivator?

    <p>80%</p> Signup and view all the answers

    Which component of the mechanical rice transplanter is made of mild steel?

    <p>Lever arm</p> Signup and view all the answers

    What is the maximum weight for a knapsack type rice transplanter?

    <p>15 kg</p> Signup and view all the answers

    Which material is specifically stated for the ripper points of a subsoiler?

    <p>Heat-treated carbon steel (e.g. AISI 1080)</p> Signup and view all the answers

    What is the required hardness for carbon steel used in at least 80% carbon content equipment?

    <p>370 to 483 HV</p> Signup and view all the answers

    What is the maximum net weight specified for the mist blower?

    <p>15 kg</p> Signup and view all the answers

    Which material is specified for the wand, tank cover, and gasket of the mist blower?

    <p>Polyvinylchloride or better material</p> Signup and view all the answers

    What is the traveling speed range for four-wheel tractor-drawn plows?

    <p>5 kph to 6 kph</p> Signup and view all the answers

    What is the operating pressure range for the power sprayer for mango?

    <p>1.21 MPa to 1.75 MPa</p> Signup and view all the answers

    What is the field efficiency required for the sugarcane planter?

    <p>80%</p> Signup and view all the answers

    What is the warranty duration for parts and services of the granular fertilizer applicator?

    <p>6 months</p> Signup and view all the answers

    What is the specified Qrate for the weeder nozzles?

    <p>$0.12 to 0.17$ Lpm</p> Signup and view all the answers

    What is the warranty period for agricultural trailers as per the specifications?

    <p>Six months</p> Signup and view all the answers

    What is the maximum disc angle allowed for a disc plow?

    <p>24 degrees</p> Signup and view all the answers

    Which of the following is the required carbon content for steel used in a furrower?

    <p>At least 80% carbon content</p> Signup and view all the answers

    What is the traveling speed range for two-wheel tractor-drawn plows?

    <p>3 kph to 4 kph</p> Signup and view all the answers

    What is the carbon content requirement for the steel used in weeders?

    <p>At least 50% carbon content</p> Signup and view all the answers

    What is the required minimum efficiency for a row-crop planter without a fertilizer applicator?

    <p>60%</p> Signup and view all the answers

    What is the maximum allowable depth of concavity for a disc plow?

    <p>300 mm</p> Signup and view all the answers

    What is the speed limit for a four-wheel tractor on a paved road?

    <p>15 to 20 kph</p> Signup and view all the answers

    What material is specified for the roll-over protective structures (ROPS)?

    <p>Steel with an as-rolled thickness of not less than 2.5 mm</p> Signup and view all the answers

    What is the traveling speed range for seed drills?

    <p>7 kph to 8 kph</p> Signup and view all the answers

    Study Notes

    Rotating Impact-Driven Type (PAES 125)

    • Warranty: six (6) months

    Hitch for Walking-type Agricultural Tractor

    • Hitch Frame: mild steel plate with 0.18-0.23% carbon content
    • Pin, Sleeve: CRS with 0.37-0.44% carbon content

    Rotating Sprinkler Head

    • Test Pressure: 170 kPa to 485 kPa, at increments of 35 kPa
    • Nozzle Height, Rotating, Riser Mounted:
      • 32 mm or smaller: 915mm
      • 38mm or larger: 1830mm
    • Nozzle Height, Non-Rotating: 460mm

    Drilling Rig

    • Material: Carbon steel (AISI 1080) or high speed steel with molybdenum
    • Warranty: six (6) months

    Electric Motor

    • Type: Universal Motor
    • Power Rating: Up to 3.73 kW
    • Service Factors and Power Ratings:
      • 1.40: 0.04 to 0.09 kW (1/20 to 1/8 hp)
      • 1.35: 0.12 to 0.25 kW (1/6 to 1/3 hp)
      • 1.25: 0.37 to 0.75 kW (1/2 to 1 hp)
      • 1.15: >0.75 to 149.20 kW (>1 to 200 hp)
      • 1.00: >149.20 to 373 kW (>200 to 500 hp)
    • Warranty: six (6) months

    Moldboard Plow

    • Material: Carbon steel (AISI 1080) or Alloy steel with at least 0.0005% boron
    • Disc/Moldboard Plow Traveling Speed:
      • Four-wheel tractor-drawn: 5 to 6 kph
      • Two-wheel tractor-drawn: 3 to 4 kph
      • Animal-drawn: 2 to 4 kph

    Disc Harrow

    • Concavity (Depth): 100 to 300 mm
    • Disc Angle: 24 degrees maximum
    • Spool Length: 175 or 225 + 2 mm
    • Ground Clearance: 125 mm

    Furrower

    • Material: Carbon steel (AISI 1080) or Alloy steel with at least 0.0005% boron
    • Traveling Speed: 7 to 8 kph
    • Warranty: six (6) months

    Agricultural Trailer

    • Warranty: six (6) months

    Roll-Over Protective Structures

    • Material: Steel with 2.5mm thickness and 0.2% carbon content

    Weeder

    • Material: Carbon steel with at least 50% carbon content, .05% sulphur and phosphorus (AISI 1055)
    • Hardness:
      • 350 to 450 HB
      • 37.7 to 47.8 HRC
      • 370 to 483 HV
    • Two-wheeled tractor-drawn: Carbon steel with at least 80% carbon content (AISI 1080)
    • Four-wheeled tractor-drawn: Carbon steel with at least 80% carbon content (AISI 1080) or Alloy steel with at least 0.0005% boron
    • Weeding Efficiency: 80%
    • Traveling Speed:
      • Four-wheel tractor-drawn: 5 to 6 kph
      • Two-wheel tractor-drawn: 3 to 4 kph
      • Animal-drawn: 2 to 4 kph

    Rice Drum Seeder

    • Warranty: six (6) months
    • Traveling Speed: 1 to 2 kph

    Granular Fertilizer Applicator

    • Warranty: six (6) months
    • Traveling Speed:
      • Four-wheel tractor-drawn: 5 to 6 kph
      • Two-wheel tractor-drawn: 3 to 4 kph
      • Animal-drawn: 2 to 4 kph

    Field Cultivator

    • Field Efficiency: 80%
    • Material:
      • Main Frame and Transverse Toolbars: mild steel (AISI 1020)
      • Shanks: alloy steel (AISI 5160)
      • Shovel: heat-treated carbon steel (AISI 1080)
    • Warranty: three (3) years

    Subsoiler

    • Field Efficiency: 80%
    • Material:
      • Main Frame and Transverse Toolbars: mild steel (AISI 1020)
      • Ripper Points: heat-treated carbon steel (AISI 1080)
    • Warranty: three (3) years

    Mechanical Rice Transplanter

    • Field Efficiency: 80%
    • Float and Guide Wheels: Non-corrosive material

    Mist Blower

    • Net weight: Less than 15 kg
    • Wand, Tank Cover, Gasket: Chemical resistant polyvinylchloride or better
    • Hose Clamps and Tank: Non-corrosive material (engineering plastic)
    • Strap: Durable and non-absorbent material (nylon fabric)
    • Strap Pads: Thickness (10mm), Width (65 mm)
    • Main Frame: AISI 1020 or better material
    • Qrate: 0.12 to 0.17 Lpm per nozzle
    • Air Speed: 90 m/s
    • Warranty: One (1) year

    Power Sprayer for Mango

    • Operating Pressure: 1.21 MPa (175 psi) to 1.75 MPa (250 psi)
    • Qrate: 15 Lpm
    • Filter Mesh: 100 per square centimeter
    • Warranty: Parts and Services (6 months), Prime Mover (1 year)

    Sugarcane Planter

    • Field Efficiency: 80%
    • Material:
      • Shanks and Furrow Closer: Alloy steel (AISI 5160)
      • Furrower: Heat-treated carbon steel (AISI 1080)
      • Cane Hopper, Feeding Shanks, and Tractor Engagement Assembly: Mild steel (AISI 1020)
    • Semi-automatic Sugarcane Planter: Chopper (Hardened steel AISI 1085)
    • Warranty: six (6) months

    Soil Auger

    • Field Efficiency: 80%
    • Noise Level: Higher than 92 dB
    • Warranty: One (1) year

    Spring-tooth Harrow

    • Field Efficiency: 80%
    • Material:
      • Main Frame, Transverse Toolbars, Lever Assembly: Mild steel (AISI 1020)
      • Spring-teeth and Cutting Tips, Spring-tooth Clamps: Alloy steel (AISI 5160)
    • Depth: 50 to 150 mm (2” to 6”)
    • Warranty: One (1) year

    Granule Applicator

    • Field Efficiency: 80%
    • Material:
      • Shanks and Wear Shin: Alloy steel (AISI 5160)
      • Tank Applicator: Resistant polyvinylchloride or better
      • Lever Arm, Discharge Outlet: Mild steel (AISI 1020)

    Knapsack Granule Applicator

    • Net weight: Less than 15 kg

    Seeder Efficiency

    • Row-crop planter without fertilizer applicator: 60%
    • Row-crop planter with fertiliser applicator: 55%
    • Seed drill: 65%

    Agricultural Tractor Speed Limit

    • Two-wheel tractor on paved road: 8 to 10 kph
    • Four-wheel tractor on paved road: 15 to 20 kph
    • Two-wheel tractor on bare dirt road: 4 to 6 kph
    • Four-wheel tractor on bare dirt road: 8 to 10 kph

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    Description

    This quiz covers various engineering materials and equipment specifications as outlined in the PAES 125 curriculum. Participants will evaluate their knowledge on specifications including types of motors, hitches for tractors, and various agricultural tools. Perfect for students in agricultural engineering or related fields.

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