Micromill PAES 226-227: 2005

Question 1

outer layer of the brown rice consisting of the aleurone cells covering the endosperm of the rice grain

Answer 1

bran

Question 2

“binlid” small pieces or particles of grains that pass through a sieve with round perforations of 1.4 mm in diamete

Answer 2

brewer’s rice

Question 3

grains that break in the process of milling which have a size of less than eight-tenth (8/10) of the average length of whole grain

Answer 3

broken grains

Question 4

grain or fraction of grain with its length equal to or greater than eight-tenth (8/10) of the average length of the whole grain

Answer 4

head rice

Question 5

type of micromill with milling capacity of 50 kg/h to less than 100 kg/h

Answer 5

household model

Question 6

weight of palay per unit loading time into the hopper, kg/h

Answer 6

input capacity

Question 7

friction type rice mill performing simultaneous hulling and whitening operations and having a milling capacity of _____.

Answer 7

micromill, 50-250 kg/h

Question 8

grains obtained after the removal of hull and bran

Answer 8

milled rice

Question 9

quantity of palay that the micromill can process per total milling time, kg/h

Answer 9

milling capacity

Question 10

extent or degree by which the bran layer and germ have been removed

Answer 10

milling degree

Question 11

ratio of the weight of milled rice to the total weight of palay, percen

Answer 11

milling recovery

Question 12

unhulled grain of Oryza sativa L., that is, grain with the hull/husk enclosing the grain

Answer 12

paddy palay rough rice

Question 13

rice ratio of the weight of grains that do not break in the process of milling and with a size of eight-tenth (8/10) or more of the whole grain to the total weight of milled rice, percent

Answer 13

percent head

Question 14

outermost rough covering of the palay grain (palea and lemma) consisting of the empty glumes, floral glumes and awn

Answer 14

rice hull

Question 15

type of micromill with input capacity of 100-250 kg/h

Answer 15

village model

Question 16

rice rice grain from which the hull, the germ, the outer bran layers, and the greater part of the inner bran layer have been removed, but part of the lengthwise streaks of the bran layers may still be present on less than 15% of the sample grains

Answer 16

well-milled

Question 17

Milling Recovery, percent, minimum

Answer 17

62

Question 18

Head Rice, percent, minimum

Answer 18

50

Question 19

Broken Grains, percent, maximum

Answer 19

50

Question 20

Bran, percent, maximum

Answer 20

10

Question 21

Noise Level, db(A), maximum

Answer 21

92*

Question 22

Milling Degree

Answer 22

Well-milled

Question 23

longitudinal bran layers remaining in the dorsal grooves after milling

Answer 23

bran streaks

Question 24

rice grain from which the hull, the germ, and the bran layers have been completely removed

Answer 24

overmilled rice

Question 25

rice grain from which the hull, the germ, the outer bran layers and the greater part of the inner bran layers have been removed but part of the lengthwise streaks of the bran layers may still be present on 15% to 40% of the sample grains

Answer 25

regular milled rice

Question 26

rice grain from which the hull, the germ, the outer bran layer, and the greater part of the inner bran layer have been removed, but part of the lengthwise streaks of the bran layer may still be present on more than 40 % of the sample grains

Answer 26

undermilled rice

Question 27

rice grain from which the hull, the germ, the outer bran layers, and the greater part of the inner bran layer have been removed, but part of the lengthwise streaks of the bran layers may still be present on less than 15% of the sample grains

Answer 27

well-milled rice

Question 28

Grain Moisture Content: dried to a uniform moisture content of ____.

Answer 28

14% ± 1%

Question 29

Purity:

Answer 29

98%, minimum

Question 30

Type:

Answer 30

Long and slender grains

Question 31

The amount of test material to be supplied shall be sufficient for ____ of continuous milling operation. At least two test trials shall be conducted with minimum duration of ____ minutes per trial. The excess amount shall be used for running-in prior to the actual conduct of test trials.

Answer 31

1.5 hours, 30

Question 32

Each of the three ___ test paddy sample is cleaned using the laboratory aspirator to separate the paddy from the impurities. The samples are then weighed.

Answer 32

0.5-kg

Question 33

This shall be taken using a calibrated moisture meter or by oven method. Five samples shall be taken for moisture content determination using a calibrated moisture meter. Using the oven method, three ___ samples are drawn from the bulk paddy sample. Each 100gram paddy sample is placed in an open aluminum can for oven drying at a temperature of ____ hours. The mean moisture content from samples shall be taken as the moisture content of the test paddy

Answer 33

100-gram, 100ºC for 24

Question 34

Undermilled (% Kernels with Bran Streaks )

Answer 34

41% and above

Question 35

Regular milled (% Kernels with Bran Streaks )

Answer 35

15% to 40%

Question 36

Well – milled (% Kernels with Bran Streaks )

Answer 36

1% to 14%

Question 37

Overmilled (% Kernels with Bran Streaks )

Answer 37

0%