Agricultural Power, Machinery, and Allied Subjects

Question 1

A hand operated tractor which is suitable for
both primary and secondary tillage used when
field has been soaked for at least half a day to
soften the soil

Answer 1

Puddling-type floating tille

Question 2

Optimum axle speed for puddling-type floating

tiller

Answer 2

250 rpm

Question 3

It is the ratio of the drawbar power and the

wheel axle power.

Answer 3

Traction efficiency

Question 4

The sum of all resistance acting on the tractor.

Answer 4

Running resistance

Question 5

Running resistance of a tractor includes

Answer 5

• rolling resistance
• air and acceleration resistance
• slope resistance

Question 6

Weight transfer means

Answer 6

to shift implement’s weight to the tractor’s

drive wheel in order to improve traction

Question 7

is the hydraulic implement hitch system
which automatically raises or lowers a soil
engaging implement to maintain its draft at a
pre-selected value.

Answer 7

Automatic draft control in a modern farm

tractor

Question 8

An international testing center for tractor

Answer 8

NEBRASKA

Question 9

When a machine is driven directly from the
shaft of a power source, the power is
transmitted using

Answer 9

direct drive

Question 10

Belt size designation for agricultural V-belt

Answer 10

HA, HB, HC, HD, HE

Question 11

It is a gripping device between power source

Answer 11

Clutch

Question 12

Machine element that transmit torque and

power.

Answer 12

Shaft

Question 13

It is used to fasten shaft pulleys and hubs of

gears together.

Answer 13

Keys

Question 14

used to transmit power between two
intersecting shafts usually when the angle
between them is variable

Answer 14

universal joint

Question 15

An irrigation pump shall be driven by a single
cylinder engine. The set-up has the following
data: Engine rpm=2200, Pump rpm=1800,
Diameter of Engine Pulley=25 cm, what should
the diameter of the second pulley be?

Answer 15

30.55 cm

Question 16

The length of a flat-belt pulley drive with the
following data is: Diameter of first pulley=300
mm, diameter of second pulley=400 mm,
center distance of the pulley shaft=10 meters

Answer 16

21.05 m

Question 17

A corn sheller cylinder will be driven by 10 hp
diesel engine thru a V-belt drive. The engine
has a speed of 1800 rpm while the required
speed of the corn sheller is 650 rpm. The
effective diameter of the driver pulley is 12
inches. What should be the diameter of the driven pulley?

Answer 17

33 in.

Question 18

A type of plow that is widely adapted in
breaking different types of soil for turning and
covering crop residues.

Answer 18

Moldboard plow

Question 19

The power required in pulling an implement.

Answer 19

Drawbar power

Question 20

A tillage equipment which displaces and
shatters soil, used to reduce soil strength and to
bury or mix plant materials and fertilizers in the
tilled layer.

Answer 20

Primary tillage equipment

Question 21

A tillage implement consisting of two or four

gangs of concave disks.

Answer 21

Disk harrow

Question 22

A tillage implement which shatters the soil
without complete burial or mixing of surface
materials.

Answer 22

Chisel plow

Question 23

Mechanical manipulation of soil for any

purpose.

Answer 23

Tillage

Question 24

A procedure in which planting is made directly

into an essentially unprepared seedbed.

Answer 24

No-tillage planting

Question 25

The pushing or rolling of soil by a steeply | inclined blade

Answer 25

Bulldozing

Question 26

A secondary tillage operation which pulverizes, smoothens, and packs the soil during seedbed preparation and also controls weeds.

Answer 26

Harrowing

Question 27

A tillage and land forming operation using a tool which splits the soil and turns two furrows laterally in opposite directions, thereby providing a ridge-and-furrow soil configuration.

Answer 27

Listing

Question 28

Minimum soil manipulation necessary for crop production or for meeting tillage requirements under existing soil condition.

Answer 28

Minimum tillage

Question 29

A tool which cuts plants materials and soil | ahead of another tool.

Answer 29

Coulter | Jointer

Question 30

The force to propel an implement in the | direction of travel.

Answer 30

Draft

Question 31

The angle, in a vertical plane perpendicular to the direction of travel, between a centralized tool or reference axis and the soil surface.

Answer 31

Tilt angle

Question 32

It is deep chiselling below 16 in. for the purpose of loosening soil for root growth and/or water movement.

Answer 32

Ridging

Question 33

It is the part of the moldboard plow that receives the furrow slice from the share and turns to break, crush, and pulverize the soil.

Answer 33

Moldboard

Question 34

The part of the moldboard plow which is used | to cut the soil.

Answer 34

Share

Question 35

It is a part of the plow bottom which helps to counteract the side pressure exerted by the furrow slice.

Answer 35

Landside

Question 36

A type of implement which is directly attached to the tractor and its power lift is dependent upon the tractor engine for its general operation.

Answer 36

Integral-mounted

Question 37

A type of implement type which is supported by two or three wheels and is hitched to the drawbar of the tractor where it is being pulled.

Answer 37

Trailing

Question 38

A type of plow which is equipped with plow bodies which turns the furrow slice to one side only.

Answer 38

One-way plow

Question 39

A type of plow which has two sets of bodies mounted symmetrically on a shareframe which can be rotated over 180 degrees along the longitudinal axis.

Answer 39

Reversible plow

Question 40

The factors that affect the draft of the plow

Answer 40

Soil condition Hitch to the tractor Topography

Question 41

Percentage of work done in pulling an average | plow.

Answer 41

43%

Question 42

Percentage of work of plow used in turning | slice of soil.

Answer 42

34%

Question 43

A point in which all the horizontal and vertical | forces in the plow meets

Answer 43

Center of resistance

Question 44

Drawbar horsepower is a factor of

Answer 44

force exerted by plow | speed of plow

Question 45

A type of plow designed to reduce friction by making a rolling bottom instead of sliding along the furrow.

Answer 45

Disk plow

Question 46

A primary-tillage plow used for small rice | farm.

Answer 46

a. Moldboard b. Rotary c. Spiral

Question 47

A primary- tillage plow for rice farming that is attached in replacement to the cage wheel of a power tiller.

Answer 47

Spiral

Question 48

An angle of the disk plow in reference to the | vertical plane.

Answer 48

Tilt angle

Question 49

An angle of the disk plow in reference to the | direction of travel of the plow

Answer 49

Disk angle

Question 50

A plow that combines the primary and secondary tillage at the same time. It is used to cut and to pulverize the soil.

Answer 50

Rotary plow