CHAPTER 3 Flashcards

1
Q

Soil manipulation

A

Tillage

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2
Q

Initial cutting, plowing, 6-36

A

Primary tillage

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3
Q

Subsequent breaking , harrowing, 3-6

A

Secondary tillage

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4
Q

Combined, rotavating, up to 6

A

General purpose tillage

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5
Q

Unplowed soil

A

Land

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6
Q

Soil cut

A

Furrowslice

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7
Q

Trench or canal

A

Furrow

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8
Q

Raised ridged

A

Back furrow

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9
Q

Trench left

A

Deadfurrow

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10
Q

Unbroken side

A

Furrow wall

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11
Q

Continuous lapping

A

Flat broken land

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12
Q

Broken in alternate

A

Bedded or listed land

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13
Q

Oldest and most important , 6-18

A

Moldboard plow

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14
Q

Provides the cutting

A

Share

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15
Q

Receives furrowslice

A

Moldboard

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16
Q

Counteracts the side

A

Landslide

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17
Q

Bend downward

A

Vertical clearance

18
Q

Bent outward

A

Horizontal clearance

19
Q

Perpendicular distance between the wing and share

A

Size of the moldboard plow bottom

20
Q

Effort to reduce

A

Disc plow

21
Q

Round and concave

A

Disc

22
Q

Curved plate

A

Scraper

23
Q

Rear wheel

A

Rear furrow wheel

24
Q

makes vertical, 15-25deg

A

Tilt angle

25
Q

direction travel, 42-45deg

A

Disc angle

26
Q

Expresses in terms of diameter of the disc

A

Size of the disc plow bottom

27
Q

Resistance of the soil

A

Draft plows

28
Q

Ratio of the time a machine

A

Field efficiency

29
Q

Specific resistance of a five type of soil

A

Unit draft

30
Q

Consist of two or more disc gang,3-6

A

Disc harrow

31
Q

Implement used to pulverize soil

A

Disc harrow

32
Q

Round and concave disc

A

Discs

33
Q

Assembly of disc

A

Disc gang

34
Q

A washer

A

Bumpers

35
Q

Two to three bearings

A

Bearing

36
Q

Consist of two gang disc end to end

A

Single action disc harrow

37
Q

Four gangs of disc

A

Double action disc harrow

38
Q

Consist of two gang disc behind

A

Offset action disc harrow

39
Q

Long rigid spikes

A

Spike tooth harrow

40
Q

Long falt curved teeth

A

Spring tooth harrow

41
Q

Set of cutting knives

A

Rotavators

42
Q

For wet land operation

A

Floating power tillers