Rice Reaper PAES 212-213: 2004

Question 1

actual rate of being able to reap palay in a given area per unit of time

Answer 1

actual field capacity

Question 2

free grains that fall with the cut stalks during delivery and release at the side of the reaper during operation

Answer 2

conveying loss

Question 3

ratio of the actual field capacity and theoretical field capacity, expressed in percent

Answer 3

field efficiency

Question 4

grains that have fallen to the ground due to the machine’s cutting operation

Answer 4

header loss

Question 5

cutting mechanism consists of fixed lower knife and reciprocating upper knife wherein its movement is controlled by the crank connected to the gear box or belt drive

Answer 5

reciprocating cutter knife

Question 6

machine that cuts and lays stalks of planted rice crop (see Figure 1)

Answer 6

rice reaper

Question 7

cutting mechanism consists of planetary type circular saw-toothed blade which rotates at the same time with the pick-up triangular frame

Answer 7

rotary knife

Question 8

computed rate of being able to reap palay in a given area per unit of time

Answer 8

theoretical field capacity

Question 9

Field efficiency (%), minimum

Answer 9

65

Question 10

Header loss (%), maximum

Answer 10

0.5

Question 11

Conveying loss, (%), maximum

Answer 11

1.0

Question 12

Total machine loss (%), maximum

Answer 12

1.5

Question 13

Noise level, db(A), maximum

Answer 13

92*

Question 14

The reaper shall be operated at the speed of ____. Mechanism for reverse speed should be provided for easy maneuverability.

Answer 14

3 kph to 5 kph

Question 15

distance between two outermost divider h tips

Answer 15

cutting width

Question 16

degree between the vertical line joining the center of the plant and the imaginary line where the stalk lodges

Answer 16

lodging angle

Question 17

maximum yield per unit area

Answer 17

potential yield

Question 18

Outside the long boundary of the test plot, two poles __ apart (A, B) are placed approximately in the middle of the test run (see Figure 3). On the opposite side also two poles are placed in similar position, ___ apart (C, D) so that all four poles form corners of a rectangle, parallel to at least one long side of the test plot. The speed will be calculated from the time required for the machine to travel the distance__between the assumed line connecting two poles on opposite sides AC and BD. The easily visible point of the machine should be selected for measuring the time.

Answer 18

20 m, 20 m, (20 m)

Question 19

Before the test run, randomly select three 1 m x 1 m area within the test plot and manually harvest the panicles. The harvested panicles in each area shall be collected, labeled and taken to the laboratory.

Answer 19

Potential yield

Question 20

Before the test run, five ____ area shall be taken at random within the test plot and the grains detached from the panicle within the area shall be collected weighed and recorded as pre-harvest loss. After the test run, using the same area, loose grains on ground, grains from cut panicles but fallen on the ground and grains from uncut panicles fallen on ground after harvesting, shall be collected, labeled and taken to the laboratory.

Answer 20

Header loss , 1 m x 1 m

Question 21

A canvass shall be spread for a length of ___ on a place where cut stalks are expected to fall. Detached grains from the panicle shall be collected, labeled and taken to the laboratory. Five sets of sample shall be taken.

Answer 21

2 m