Power-Operated Corn Sheller PAES 208-209:2000

Question 1

ratio of the weight of corn kernels blown by the sheller fan, to the weight of the total corn kernel input of the sheller, expressed in percent

Answer 1

blower loss

Question 2

type of shelling cylinder formed by a rolled metal sheet/plate (Figure 1a) or formed by longitudinal bars adjacently arranged forming a continuous cylinder (Figure 1b)

Answer 2

closed-frame cylinder

Question 3

iron grill frame partially or fully surrounding the cylinder on which the shelling elements rubs, shear and/or impact the corn ear with or without husk

Answer 3

concave component

Question 4

part of the ear corn where the kernels are attached

Answer 4

corn cob

Question 5

pistillate inflorescence of the plant Zea mays L., enclosed with a leaf-like protective covering known as husk

Answer 5

corn ear

Question 6

machine used to remove the husk of corn ear, detach, separate and clean the corn kernels from the cobs in one operation

Answer 6

corn husker-sheller

Question 7

machine used to detach, separate and clean the corn kernels from the cobs

Answer 7

corn sheller

Question 8

type of shelling unit consisting of a cylinder with shelling elements such as knife bar or pegtooth

Answer 8

cylinder-type

Question 9

kernels which show signs of fissures or fractures or splinters

Answer 9

cracked kernels

Question 10

type of shelling unit consisting of a vertical disc with spiked surface

Answer 10

disc-type

Question 11

unshelled fruit of the corn plant where the husk has been removed mechanically or manually

Answer 11

ear corn dehusked corn corn-in-cob

Question 12

type of corn sheller wherein the ear corn are fed into shelling chamber by gravit

Answer 12

hopper-fed type

Question 13

dry and indehiscent seed developed from the ovary of the ear corn

Answer 13

kernel

Question 14

ratio of the weight of the corn kernel present in the ear corn to the weight of the ear corn

Answer 14

kernel-ear corn ratio

Question 15

kernels that were broken and/or scratched as a result of shelling operation

Answer 15

mechanically damaged kernels

Question 16

amount of moisture in the kernel expressed as percentage of the total weight of the sample, wet basis

Answer 16

moisture content

Question 17

difference between the percent cracked sample taken before and after the shelling operation

Answer 17

net cracked kernel

Question 18

type of shelling cylinder where the shelling elements are attached to the equally spaced longitudinal bars arranged cylindrically (Figure 2)

Answer 18

open-frame cylinder

Question 19

ratio of the weight of clean corn kernels, to the total weight of unclean corn kernels sample, expressed in percent

Answer 19

purity

Question 20

ratio of the weight of corn kernels that fell out from the machine during shelling operation to the weight of the total corn kernel input of the sheller, expressed in percent

Answer 20

scattering loss

Question 21

ratio of the weight of corn kernels that come out of the shelling chamber with the cobs at the cob outlet, to the weight of the total corn kernel input of the sheller, expressed in percent

Answer 21

separation loss

Question 22

whole and damaged corn kernels separated from the cob after shelling

Answer 22

shelled kernels

Question 23

shelling drum part of the shelling unit that rotates about an axis and it is equipped with pegs on its periphery

Answer 23

shelling cylinder

Question 24

ratio of the weight of the shelled corn kernels collected at all outlets, to the total corn kernel input of the sheller, expressed in percent

Answer 24

shelling efficiency

Question 25

ratio of the weight of the shelled corn kernels collected at the main outlet, to the total weight of the corn kernel input of the sheller, expressed in percent

Answer 25

shelling recovery

Question 26

shelling chamber part of the sheller where the kernels are detached and separated from the corn cobs

Answer 26

shelling unit

Question 27

type of corn sheller wherein the ear corn are fed into shelling chamber with the application of external force

Answer 27

table-fed type

Question 28

kernels that remain in the cob after shelling

Answer 28

unshelled kernels

Question 29

ratio of the weight of corn kernels that remained in the cobs of the corn fed into the shelling chamber, to the weight of the total corn kernel input of the sheller, expressed in percent

Answer 29

unshelled loss

Question 30

unbroken kernels after shelling

Answer 30

whole kernels

Question 31

Shelling Recovery, percent, minimum

Answer 31

97.0

Question 32

Shelling Recovery, percent, minimum

Answer 32

99.5

Question 33

Losses, percent, maximum a) Blower

Answer 33

1.0

Question 34

Losses, percent, maximum b) Separation

Answer 34

1.0

Question 35

Losses, percent, maximum c) Unshelled

Answer 35

0.5

Question 36

Losses, percent, maximum d) Scattering

Answer 36

0.5

Question 37

Purity, percent, minimum

Answer 37

98.0

Question 38

Mechanically Damaged Kernel, percent, maximum

Answer 38

3.0

Question 39

Net Cracked Kernel, percent, maximum

Answer 39

5.0

Question 40

Noise Level [db(A)], maximum

Answer 40

100*

Question 41

kernel shelled kernel free from foreign matter

Answer 41

clean shelled

Question 42

clearance between cylinder shelling elements and concave component

Answer 42

concave clearance

Question 43

actual capacity of the sheller corrected at 20% kernel moisture content (wet basis), and 100% purity

Answer 43

corrected capacity

Question 44

weight of unshelled corn fed into the sheller per unit of time

Answer 44

feed rate

Question 45

all matters other than corn kernels such as sand, gravel, dirt, pebbles, stones, lumps of earth, clay and mud, weed seeds and other crop seed

Answer 45

foreign matter

Question 46

weight of shelled kernel collected per unit of time

Answer 46

output capacity

Question 47

wire mesh or perforated sheet metal used to separate large and/or small particles

Answer 47

oscillating screen

Question 48

input sum of the weight of collected shelled kernels and all the shelling losses

Answer 48

total kernel

Question 49

sum of blower, separation, unshelled and scattering losses in a sheller, expressed in percent by weight

Answer 49

total losses

Question 50

A minimum of ____, with a duration of at least ___ per trial, shall be adopted.

Answer 50

two (2) test trials, 15 minutes