Forage Chopper PAES 218-219: 2004

Question 1

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

Answer 1

blow-up type

Question 2

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

Answer 2

cutterhead cutting rotor

Question 3

knives on cylindrical mountings such that the cutting edges of the knives are essentially parallel to the axis of rotation (see Figure 1)

Answer 3

cylinder cutterhead

Question 4

cylindrical roll generally with protrusions or flutes, used to gather, compress and advance the crop into the cutterhead (see Figure 2)

Answer 4

feedroll

Question 5

knives mounted essentially radially with the cutting edges describing a plane perpendicular to the axis of rotation (see Figure 3)

Answer 5

flywheel cutterhead

Question 6

machine used to cut the crop into short parallel lengths (see Figure 4)

Answer 6

forage chopper

Question 7

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

Answer 7

let-fall type

Question 8

chopper 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 This type of forage chopper is capable of producing the shortest and most uniformly cut particles.

Answer 8

precision-cut forage

Question 9

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 9

random-cut forage chopper

Question 10

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 10

semi-precision-cut forage chopper

Question 11

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

Answer 11

stationary knife shear bar

Question 12

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

Answer 12

throw-away type

Question 13

Precision-cut and semi-precision cut forage chopper shall be able to cut at least three different length settings with ___ maximum variation of cut.

Answer 13

5%

Question 14

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

Answer 14

96 db (A). *

Question 15

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 15

chopping efficiency

Question 16

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

Answer 16

forage

Question 17

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

Answer 17

feeding table

Question 18

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

Answer 18

output capacity

Question 19

Test materials to be used shall be commonly or locally grown and newly harvested forage crop. The amount of test material to be supplied shall be at least ___ of input capacity of forage chopper.

Answer 19

75 %

Question 20

Dry the sample in the oven with temperature of _____.

Answer 20

103 oC + 1 oC for 24 h.