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Farm Machinery Practice Test: Harrows, Cultivators, Puddlers And Intercultural Implements
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Cultivators: Also called tillers or tooth harrows, cultivators are machines that loosen soil, remove weeds, and distribute fertilizer. They can have rigid or spring-loaded tines or shanks. Cultivators are used for intercultural operations, such as breaking in new ground. Harrow: A tool that can be used to control weeds in the early stages of crop growth. Harrows can also be used to incorporate crop residues after harvest. Puddler: A rotary device that mixes and churns topsoil. Puddlers are used for puddling in wet rice fields. Hand hoe: A manually operated tool consisting of an iron blade... Show more
Farm Machinery Practice Test: Harrows, Cultivators, Puddlers And Intercultural Implements
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17 Questions

1. Which cultivators are operated by the tractors which are fitted with hydraulic lift?
2. Which disc harrow has two gangs in tandem and two fitted one behind the other?
3. What is the range of the gang angle?
4. A tractor is attached with a 9-tine cultivator. While field testing, drawbar dynamometer shows an average pull of 14000 N. the speed of tractor is 6 km per hour. Find the power of the tractor.
5. What are the dimensions of a duck foot cultivator?
6. What is the angle made by the three openings at the bottom of the funnel?
7. In which cultivator, the spacing of the tines are changed by slackening and sliding of bolts?
8. What is the weight of the disc harrow?
9. The flanged tube, mounted on the gang axle between every two discs to retain them at fixed position laterally on the shaft is called ______
10. How many acres can be covered by a harrow of 1.5 m width in a day of 8 hours with bullock power. If each spike of the harrow is giving 1 kg resistance when there are 50 spikes. What power would be necessary for the bullocks to pull the harrow?
11. A five-tine cultivator having tine spacing 8cm, working depth of 5cm and speed is 3km/hr. Turning loss is 10%. Soil resistance is 0.6 kg/cm2. Width of furrow is 5 cm. What will be the maximum draft?
12. Which of the following is not a type of a cultivator?
13. A three-tine cultivator having tine spacing 6 cm, working depth of 3 cm and speed is 2 km/hr. Turning loss is 10%. Soil resistance is 0.6 kg/cm2. Width of furrow is 6 cm. What will be the required power?
14. What is the size of the discs in tractor drawn disc harrows?
15. What power is necessary for pulling a harrow with 50 times, each giving a resistance of 1 kg, when the speed of harrow is 5km/hr.
16. What is the cutting angle range of a shovel?
17. Which harrow is known as knife harrow?