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ABE 2 First Exam > Module 5: Tractors and Transmission System > Flashcards

Module 5: Tractors and Transmission System Flashcards

1
Q

mechanical device powered with an engine ranging from 3 to over 100 hp

A

tractor

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2
Q

two types of tractor

A

1) 2 wheel tractor
2) 4-wheel tractor

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3
Q

single-axle machine powered by an engine ranging from 3 hp to 15 hp

A

2-wheel tractor

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4
Q

double-axle machine powered by an engine ranging from 15 hp to over 100 hp

A

4-wheel tractor

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5
Q

also know as walking type tractors or hand tractors

A

2-wheel tractor

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6
Q

the first 2-wheel tractors were in introduced in the Philippines from America in the 1960s for wetland rice cultivation

true or false

A

false; they were from Japan

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7
Q

2-wheel tractors are used in operations such as:

A
  • land preparation
  • planting
  • cultivating
  • harvesting
  • transport
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8
Q

in this type of tractor, implements are attached to this tractor and the operator walks behind to provide control

A

2-wheel tractor

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9
Q

classification of 2-wheel tractors according to function

A
  1. traction/pull type
  2. rotary type
  3. general-purpose type
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10
Q

classification of 2-wheel tractors according to function

provide pulling power through its drawbar

A

traction-pull type

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11
Q

in a traction/pull type 2-wheel tractor, what is fitted to tractor for dry land operation?

A

pneumatic tires

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12
Q

in a traction/pull type 2-wheel tractor, what is fitted to the tractor for wet land operation?

A

stage cage wheels

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13
Q

classification of 2-wheel tractors according to function

fitted with rotary blades to cut and pulverize the soil

A

rotary type

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14
Q

classification of 2-wheel tractors according to function

fitted with a drawbar for traction work and a power-take-off (PTO) for rotary work

A

general-purpose type

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15
Q

in a rotary type 2-wheel tractor, rotary blades may be attached to the wheel axle for wet land operation

true or false

A

false; for dry land operation

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16
Q

in a rotary type 2-wheel tractor, rotary blades are attached where? for wet land operation

A

they are attached to a front axle like a cage wheel

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17
Q

the wet land type of a rotary 2-wheel tractor comes with a floating device that is for?

A

deep mud conditions

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18
Q

general-purpose type tractors comes with a moldboard or disc plow attached to the _________; it also comes with a detachable ___________________ powered by the PTO

A

drawbar; rotavator assembly

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19
Q

this tractor is of Japanese design and comes normally with steering clutches and multiple speed transmission including reverse

A

general-purpose type

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20
Q

the first 4-wheel tractors were brought to PH during the ________ occupation for large-scale _______ production

A

American; sugar cane

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21
Q

_______ : drawbar
rotary : PTO
lifting : __________

A

power : drawbar
rotary : PTO
lifting : hydraulic system

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22
Q

in a 4-wheel tractor, implements are mounted on the tractor using the _________-________ ____-_____ hitch system

A

hydraulic-controlled three-point hitch system

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23
Q

it is a slow-moving vehicle (up to 30 kph) with high torque on the driving wheels

A

4-wheel tractor

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24
Q

a 2-wheel tractor comes with multiple speed transmission including reverse

true or false

A

false; that is a 4-wheel tractor

25
Q

classification of 4-wheel tractors according to horsepower rating of the engine

A
  1. compact type
  2. standard type
26
Q

classification of 4-wheel tractors according to horsepower rating of the engine

tractors with power rating below 32 hp

A

compact type

27
Q

classification of 4-wheel tractors according to horsepower rating of the engine

power rating above 32 hp

A

standard type

28
Q

standard tractors with rating of 32-49 hp

A

standard light

29
Q

standard tractors with rating of 50-69 hp

A

standard light-medium tractors

30
Q

a standard medium tractor has a power rating of 90 and above

true or false

A

false; it has a power rating of 70 hp to 89 hp

31
Q

standard heavy tractors have a power rating of 100 and above

true or false

A

false; it is 90 and above

32
Q

this is the second major component of the tractor

A

transmission system

33
Q

common methods of power transmission

A
  1. direct coupling
  2. belts and pulleys
  3. chains and sprockets
  4. gears
34
Q

common methods of power transmission

load is directly connected to the engine by some kind of flange device

A

direct coupling

35
Q

common methods of power transmission

transmission efficiency is about 100%

A

direct coupling

36
Q

in direct coupling, the speed of rotation of the engine is equal to the speed of rotation of load

true or false

A

true

37
Q

common methods of power transmission

two pulleys are used and connected to each other by a belt

A

belts and pulleys

38
Q

belt and pulleys transmission efficiency is same with direct coupling, is it also 100%

true or false

A

false; it is <100%

39
Q

in belt and pulleys, clutch action may be obtained by a ______ ________

A

third pulley

40
Q

speed ratio between engine and load depends on diameter ratio of the two pulleys

true or false

A

true

41
Q

common methods of power transmission

two sprockets are used and connected by a roller chain

A

chain and sprockets

42
Q

in chain and sprockets, the transmission efficiency is less than or equal to 100% because of?

A

chain slack

43
Q

in chain and sprockets, the direction of rotation of the two sprockets are different

true or false

A

false; the direction is the same

44
Q

in chain and sprockets, the speed ratio between engine and load depends on the number of teeth ratio of the 2 sprockets

true or false

A

true

45
Q

common methods of power transmission

two meshed gears are used

A

gears

46
Q

transmission efficiency of gears is __________ because of gear slack

A

less than or equal to 100%

47
Q

in gears, the direction of rotation of the two gears are ________

A

opposite each other

48
Q

center-to-center distance between the shafts of the gears is dictated by the _______ of the gears

A

size

49
Q

couplings which permit the disengagement of the coupled shafts during rotation

A

clutch

50
Q

it is a special arrangement of gears so constructed and located in the transmis system that permits one driving wheel to rotate slower or faster than the other and at the same time propel its share of the load

A

differential

51
Q

it is an enclosed system of assembled gears that transmits and distributes power from the engine to the different parts of the transmission system

A

transmission box

52
Q

how is the power from the engine modified?

A

by changing the speed and direction of rotation of the output shaft through the use of gears

53
Q

through the introduction of ______ in PH agri, most farm operations are being handled with ease and high efficiency

A

2-wheel tractors

54
Q

these are also called as walk-behind tractors which are used worldwide for small-scale farm, horticultural, industrial, landscaping and home use

A

2-wheel tractors

55
Q

normally powered by gasoline or diesel engines and are fitted with either rubber tires or steel cage wheels

A

2-wheel tractor

56
Q

in a 2-wheel tractor, these are used for dry land plowing and transportation

A

rubber tires

57
Q

in a 2-wheel tractor, these are used for all wet workings

A

cages wheels

58
Q

it is necessary that a tractor be operated within a narrow range of its speed to develop its rated power and to obtain best fuel economy

true or false

A

true

59
Q

is it necessary that the high speed of the engine be reduced at the final drive to obtain a ____________

A

practical vehicle speed

ABE 2 First Exam (11 decks)

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