Question 2
The diagram below illustrate a farm implement. Study it and answer the questions that follow.
(a) Name the implement illustrated in the diagram. (1 mark)
(b) Name the parts labelled I, II and III in the diagram. (3 marks)
(c) State one function each of the parts labelled I, II and III. (3 marks)
(d) Give five ways of maintaining the illustrated implement. (5 marks)
(e) Mention three advantages of using the illustrated implement. (3 marks)
Observation
(a) Most candidates could not identify the disc ridger, name its labelled parts as
well as the functions of the labelled parts.
(b) Many candidates were able to give the ways of maintaining the disc ridger
as well as the advantages of using it.
The expected answers include:
2. . (a) Name of implement
- Disc ridger
(b) Naming of parts
I - Hitch/point of attachment/coupling point/coupler
II - Beam/frame
III - Disc
(c) Functions of labelled parts
I (Hitch)
- Point of attachment to the tractor/connects the ridger to the tractor
II (Beam/frame)
- Holds disc in position/for attachment of the discs
- Bears additional weight for greater depth
III (Disc)
- Cuts and turns/inverts the soil to form ridges
(d) Ways of maintaining the implement
- Clean/wash and dry the disc after use
- Tighten loose bolts and nuts
- Grease all lubrication points
- Replace/repair damaged parts
- Store in cool, dry place
- Rub metal points with oil to prevent rusting
(e) Advantages of using the implement
- Eases percolation of water
- Reduces the growth of weeds
- Facilitates easy harvesting of root crops
- Eases penetration of root and tuber crops
- Improves soil aeration
- Helps to control soil erosion
- Reduces drudgery
- Speeds up time of operation