201 - 209

Question 1

. Mechanical grain dryer wherein the grain in fixed amount is held in the drying chamber in batches until the grain reaches the desired moisture content.

Answer 1

BATCH TYPE

Question 2

Batch type dryer wherein a fixed amount of grain is held stationary in a horizontal grain holding bin.

Answer 2

FLAT BED TYPE

Question 3

batch type dryer equipped to circulate and/or mixed fixed volume of grain during the drying
operation

Answer 3

recirculating type

Question 4

batch type dryer wherein a fixed volume of grain is held stationary in a vertical grain holding
bin

Answer 4

vertical bin type

Question 5

dryer in which the material being dried moves through the drying chamber in a substantially
continuous stream and is discharged without being recirculated

Answer 5

continuous flow dryer

Question 6

continuous flow dryer wherein the product being dried moves in the same direction as drying
air

Answer 6

concurrent flow type

Question 7

continuous flow dryer wherein the grain being dried move in one direction and the drying air
moves in the opposite direction

Answer 7

counter-flow type

Question 8

continuous flow dryer wherein the flow of air is transverse to the direction of flow of the
grain being dried

Answer 8

cross-flow type

Question 9

continuous flow dryer wherein the drying bin is similar to columnar drying bin except that it
includes louvers causing mixing to occur as the grain flows through the system

Answer 9

mixing type

Question 10

continuous flow dryer wherein the grains in the drying bin flows through the column in a
straight path

Answer 10

non-mixing type

Question 11

grains which show signs of fissures or fractures or splinters

Answer 11

cracked grain

Question 12

dryer in which the products of combustion come into direct contact with the product being
dried

Answer 12

dryer, direct-fired

Question 13

dryer in which the products of combustion do not come in contact with the products being
dried

Answer 13

dryer, indirect-fired

Question 14

ratio of the total heat utilized to vaporize moisture in the material, to the amount of heat
added to the drying air expressed in percent

Answer 14

drying efficiency / heat utilization efficiency

Question 15

device used to collect dust ( i.e. consist of aspiration fan, cyclone, etc.)

Answer 15

dust collecting system

Question 16

air moving device that is used to force heated air through the mass of grains at the desired air
flow rate and pressure

Answer 16

fan

Question 17

device for removing excess moisture from the grain, generally by forced or natural
convection with or without addition of heat

Answer 17

grain dryer

Question 18

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

Answer 18

head rice

Question 19

device used to remove grain moisture by forcing heated air through the grain mass until the
desired moisture content is attained

Answer 19

heated-air mechanical grain dryer

Question 20

product of combustion efficiency and burner/furnace efficiency

Answer 20

heating system efficiency

Question 21

difference between the maximum and the minimum grain moisture content randomly sampled
after drying

Answer 21

moisture gradient

Question 22

mechanical grain dryer wherein grain is passed intermittently in cycles or stages through a
drying chamber either by mechanical means or by gravity with subsequent cooling and
tempering until the grain reaches the desired moisture content

Answer 22

multi-pass dryer

Question 23

chamber wherein air pressure is developed for uniform distribution of the heated air through
the grain mass

Answer 23

plenum

Question 24

any device that is used to avoid human accident and/or damage to the parts and components
of the dryer during the operation and automatically shuts-off the operation of the dryer in
case of malfunction

Answer 24

safety device

Question 25

What is the maximum moisture gradient for rice in a recirculation type of grain dryer?

Answer 25

2.%

Question 26

The noise emitted by the heated-air mechanical grain dryer shall not exceed ....

Answer 26

92 dB.

Question 27

Average temperature of the air to be used for drying the grain, measured at a number of points as close as practicable to its entry to the grain bed.

Answer 27

DRYING AIR TEMPERATURE

Question 28

Volume of air in cubic meters delivered to the mass of grains per second.

Answer 28

AIRFLOW RATE

Question 29

Kernels, whole or broken, which are light green and chalky with soft texture.

Answer 29

IMMATURE GRAINS

Question 30

Pressure in the plenum chamber to maintain uniform distribution of air flow through the grain mass, expressed in Pascal.

Answer 30

STATIC PRESSURE

Question 31

Milling test of the samples obtained during drying test shall be conducted at least ----- hours after the drying test while air-dried samples shall be milled when its moisture content reaches -----

Answer 31

48 hrs and 14 %

Question 32

The grain to be used shall be homogeneous and the moisture content should be at least----- for rice and corn.

Answer 32

22%

Question 33

Amount of moisture in the grain expressed as percentage of the total weight of the sample, wet basis.

Answer 33

MOISTURE CONTENT

Question 34

Formula in getting the percentage of wet basis for moisture content of the rice grain.

Answer 34

(MO-MI)/MO X 100=MCWB

Question 35

Total amount of fuel consumed divided by the total drying time.

Answer 35

FUEL CONSUMPTION

Question 36

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

Answer 36

CYLINDER TYPE

Question 37

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

Answer 37

CORN SHELLER

Question 38

Difference between the percent cracked sample taken before and after the shelling operation.

Answer 38

¬NET CRACKED KERNEL .

Question 39

Electric motor, a gasoline or diesel fed engine used to run the sheller.

Answer 39

PRIMEMOVER

Question 40

For uniform result of output due to variation in kernel moisture content and purity, the output capacity shall be corrected at -----purity and _____moisture content.

Answer 40

100% and 20%

Question 41

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

Answer 41

PURITY