C9

Question 1

Is this the correct order for RICE POST HARVEST SYSTEM?

Harvesting—-> Threshing—-> Drying—-> Storage—-> Milling

Answer 1

Yes

Question 2

.Is the process of cutting and gathering of the rice panicles from the mother plant

It includes cutting, drying, bundling, hauling field and
hay stacking of the paddy

Answer 2

Rice harvesting

Question 3

Ideal moisture content when harvesting rice

Answer 3

21-25%

Question 4

Using sickles for cutting

Answer 4

Manual Harvest

Question 5

Windrowing or in-field drying

Answer 5

Manual Harvest

Question 6

The field condition when using the reaper must be the same with the field condition
for manual harvesting

A. Reaped height: __ to __ cm
B. Stalk height:__ to __ cm
Ɵ. Prostrate angle: __°C

Answer 6

A. Reaped height: 10 to 30
cm
B. Stalk height: 50 to 100
cm
Ɵ. Prostrate angle: 60°C

Question 7

Drain the field well about
__ days before harvest.

Answer 7

10 days

Question 8

How many safety pins that are used in the reaper?

Answer 8

two (2) safety pins are used

Question 9

• Foot treading
• Impact “hampasan”

Answer 9

Manual Threshing

Question 10

Types of Mechanical Threshing

Answer 10

Hold On Types

Throw-inTypes

Question 11

Pedal Threshers (or
motorized) 200 to
300 kgs/h

Hold On Types or Throw-inTypes?

Answer 11

Hold on types

Question 12

• High capacity
• Clean grains
• Low labor requirement
• Suitable for fresh or wet
palay

Answer 12

Axial Flow Thresher

Question 13

Ave. postharvest losses of axial flow thresher

Answer 13

2.18%

Question 14

Laborers needed for axial flow thresher

Answer 14

4-6 labores

Question 15

It’s design is Peg-tooth/concave grate

Answer 15

Axial Flow Thresher

Question 16

Combines the operations of harvesting and threshing

Answer 16

RICE COMBINE
HARVESTERS

Question 17

Mobile grain-harvesting machine for cutting, picking, stripping or picking up crop, threshing, separating, cleaning and conveying grain into a grain hopper and depositing harvest residue onto the ground.

Answer 17

RICE COMBINE
HARVESTERS

Question 18

• Self propelled (Crawlers or
wheel drive)
• Cutting knives
• Threshing system
• Bulk or bagged discharge

Tye ff. Are types of ___

Answer 18

Combine harvesters

Question 19

Based on a study of PHilMech and PhilRice (2010), a total of
____% Grain losses incurred during the postharvest
activities

Answer 19

16.47% grain losses

Question 20

Both drying and Milling have the highest recorded
losses with __% and __% share respectively

Answer 20

36% and 34%

Question 21

• When starting the
  threshing clutch lever, do it
  slowly and move the
  acceleration lever to ___
  position.

Answer 21

LOW POSITION

Question 22

When the reaping part is
clogged, _____ the
reaping clutch immediately.

Answer 22

Disengage

Question 23

Condition: When Some of the Grains Remain Un-threshed

Check: check the ___ of the
engine

Remedy: Move the accelerator lever to FULL position.

Answer 23

RPM

Question 24

When Grain Selection
Performance is Poor, Change the grain sieve net from 19 mm to ___ mm.

Answer 24

17 mm

Question 25

When the Amount of Scattered Grains is Large, Adjust the opening of the______ adjustment to weaken the wind force.

Answer 25

winnower

Question 26

Three major types of maintenance:

Answer 26

• Preventive Maintenance • Corrective Maintenance Innovative Maintenance

Question 27

are maintenance activities done to keep the machines free from breakdowns for assured operation

Answer 27

Preventive Maintenance

Question 28

maintenance activities done to repair an existing breakdown. The objective is to keep the down time to the minimum. Hence, repairs must be done promptly.

Answer 28

Corrective Maintenance

Question 29

already involves some kind of innovation to repair an existing breakdown. Machining of machine parts to make the machine run again is a good example of _____ maintenance

Answer 29

Innovative Maintenance

Question 30

Major causes of machine breakdowns are as follows: • Insufficient or incorrect initial instruction and preventive maintenance – ___% • Improper use – ___% • Parts life – 9% • Others – 14%

Answer 30

• Insufficient or incorrect initial instruction and preventive maintenance – 44% • Improper use – 23%

Question 31

CLEAN MACHINE EVERY __ HOURS

Answer 31

50 hrs

Question 32

CLEAN DURING REAPING PROCESS AND AFTER HARVESTING IS COMPLETE T or f

Answer 32

T

Question 33

Replace New Coolant every ___ years

Answer 33

2 yrs

Question 34

If Crops are not threshed completely, we should Raise the harvesting speed slightly T or f

Answer 34

T