PAES 218:2004 - 219:2004

Question 1

PAES 218: 2004

Answer 1

Agricultural Machinery – Forage Chopper – Specifications

Question 2

type of forage chopper where the chopped materials are blown up through the blow-up pipe

Answer 2

blow-up type

Question 3

cutting rotor
devices intended to cut the crop into short lengths with reasonable consistency within a range
of optional settings

Answer 3

cutterhead

Question 4

knives on cylindrical mountings such that the cutting edges of the knives are essentially
parallel to the axis of rotation

Answer 4

cylinder cutterhead

Question 5

cylindrical roll generally with protrusions or flutes, used to gather, compress and advance the
crop into the cutterhead

Answer 5

feedroll

Question 6

knives mounted essentially radially with the cutting edges describing a plane perpendicular to
the axis of rotation

Answer 6

flywheel cutterhead

Question 7

machine used to cut the crop into short parallel lengths

Answer 7

forage chopper

Question 8

type of forage chopper where the chopped materials are dropped down to the bottom of
machine

Answer 8

let-fall type

Question 9

forage chopper which uses a feeding mechanism consisting of four or more feed rolls to
partially orient and advance the crop at a consistent rate into the cutting mechanism
NOTE This type of forage chopper is capable of producing the shortest and most uniformly cut particles.

Answer 9

precision-cut forage chopper

Question 10

forage chopper without a distinct feeding mechanism, usually employing flails to impact-cut
and chop crop directly into shorter pieces
NOTE This type of forage chopper usually produces the longest mean particle lengths, and the least uniformly
cut particles.

Answer 10

random-cut forage chopper

Question 11

forage chopper which uses a feeding mechanism consisting of two feed rolls, or other means
such as an auger, to advance the crop to the cutting mechanism
NOTE Mean particle lengths and particle uniformity are intermediate between those obtained with precision cut
and random-cut forage choppers.

Answer 11

semi-precision-cut forage chopper

Question 12

shear bar
fixed plate providing a stationary edge against which the cutterhead knives shear the crop

Answer 12

stationary knife

Question 13

type of forage chopper where the chopped materials are thrown away to the front area of the
machine

Answer 13

throw-away type

Question 14

Feeding mechanism

Answer 14

precision-cut
semi-precision-cut
random-cut

Question 15

Chopping mechanism

Answer 15

Cylinder cutterhead
Fly-wheel cutterhead

Question 16

Discharging mechanism

Answer 16

Let-fall type
Throw-away
Blow-up type

Question 17

Allowable noise level for continuous exposure

Answer 17

4 hours

Question 18

The noise emitted by the forage chopper shall not be more than???

Answer 18

96 db (A)

Question 19

For random fed forage chopper, the length of the feeding table shall not be???

Answer 19

less than the arm length

Question 20

Precision-cut and semi-precision cut forage chopper shall be able to cut???

Answer 20

at least three
different length settings with 5% maximum variation of cut

Question 21

The construction shall be rigid and durable without breakdown of its major components (i.e. cutting assembly, etc) for at least ??? from purchase by the first buyer.

Answer 21

six months

Question 22

Marking shall be stated in ??? and ??? and shall be printed in???

Answer 22

English and Filipino
red color with a white background

Question 23

PAES 219:2004

Answer 23

Agricultural Machinery – Forage Chopper – Methods of Test

Question 24

ratio of the weight of the fresh chopped materials collected at all outlets, to the total fresh
weight of the input of the chopper, expressed in percent

Answer 24

chopping efficiency

Question 25

any crop used as silage, soilage or animal feed, usually mixed with fermenting agents

Answer 25

forage

Question 26

part of the forage chopper where the forage to be chopped are loaded

Answer 26

feeding table

Question 27

weight of processed material collected per unit time, expressed in kilogram per hour

Answer 27

output capacity

Question 28

distance between the horizontal supporting surface and the horizontal plane touching the uppermost part of the forage chopper

Answer 28

overall height

Question 29

distance between the vertical planes at the right angles to the median plane of the forage chopper and touching its front and rear extremities

Answer 29

overall length

Question 30

distance between the vertical planes parallel to the median plane of the machine, each plane touching the outermost point of the forage chopper on its respective side

Answer 30

overall width

Question 31

The amount of test material to be supplied shall be at least ??? of input capacity of forage chopper.

Answer 31

75 %

Question 32

A ??? shall be used as reference plane for verification of forage chopper’s dimensional specifications.

Answer 32

plain and level surface

Question 33

A minimum of ???, with duration of at least ???, shall be adopted.

Answer 33

three test trials 15 minutes per trial

Question 34

The noise level shall be measured approximately ??? away from the ear level of the feeder and collector of the chopped materials

Answer 34

50 mm

Question 35

The speed of the rotating shafts of the major components of the forage chopper shall be taken using a ???.

Answer 35

tachometer

Question 36

The conditions of the test materials such as length of forage crop shall be measured by randomly taking ??? “representative samples” which represents the different conditions of test materials in the bulk.

Answer 36

20

Question 37

During each test trial, ??? samples each weighing ??? shall be randomly collected from the output of the forage chopper to be analyzed in the laboratory. Half (500 g) of the one kilogram sample shall be used for laboratory analysis and the other half (500 g) shall be used for reference purposes or for an eventual second check in case of review.

Answer 37

three one kilogram

Question 38

This shall be taken using oven-dry method.

Answer 38

Moisture content

Question 39

For each test trial, select ??? representative sample weighing at least ??? of chopped materials and place in the moisture can.

Answer 39

three 25 g

Question 40

Dry the sample in the oven with temperature of ??? for ???

Answer 40

103 °C ± 1 °C 24 h

Question 41

In each test trial, randomly take ??? samples from the outlet. The length of each piece in the samples shall be measured to find the average length of cut, the coefficient of variation, precision (% error) of cut and chopping efficiency of the forage chopper.

Answer 41

three-30 pieces

Question 42

In each test trial, randomly take ??? samples from the outlet. Uncut forage from the samples shall be separated and weighted. Chopping efficiency shall be calculated using the equation in Annex E.

Answer 42

three-250 g

Question 43

(AMTEC)

Answer 43

Agricultural Machinery Testing and Evaluation Center

Question 44

??? shall be generally used for the manufacture of the different components of the forage chopper.

Answer 44

Steel bars and heavy-duty mild steel

Question 45

Knives shall be made of ???

Answer 45

AISI 1080 to AISI 1085 or its ISO equivalent.

Question 46

Bolts and screws to be used shall conform with the requirements of ???

Answer 46

PAES 311 and PAES 313.

Question 47

Fuel/Power consumption Before the start of each test trial, the fuel tank shall be filled to ??? After each test trial the tank shall be refilled ???. The amount of refueling is the fuel consumption for the test. When filling up the tank, keep the tank horizontal so as not to leave empty space in the tank. In case an electric motor is used primemover, ??? shall be used to measure electric energy consumption.

Answer 47

- its capacity. - using graduated cylinder - a power meter