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Farm Machinery Practice Test: Harvesting Equipment
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Avg score: 83% Most missed: “In cutter bar of mower, the knife head is attached to the ___________”
Harvesting Equipments topics include: Power transmitting unit mower, mower cutter bar and wheels, harvesting plants, sickle, combine harvester, mower registration and alignment. Here are some types of harvesting equipment: Tractor mounted vertical conveyor reaper: This harvester can harvest crops like wheat and paddy. It can be controlled by the tractor's hydraulic system, steel ropes, and pulleys. Sugarcane harvester: This machine cuts the sugarcane from the base, removes the top, cuts the stalks into billets, and stacks them in a wagon. Harvester: This piece of forestry equipment is... Show more
Farm Machinery Practice Test: Harvesting Equipment
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24 Questions

1. A disc type mower is operated by PTO with 6 discs with a shaft of 0.4 m/disc. The specific energy required for cutting is 2.1 KJ/m2 and specific power losses due to air come stubble and gear train friction is 2 kw/m of cutting width. If the mower with tractor requires a propelling force of 2 KN the total power requirement for carrying out moving in Kw at forward speed of 3 km/h is ____
2. A 2m mower is operating at 3.5 km/h with an overall efficiency of 75%. Calculate the area covered by it in ha/h.
3. What is the difference between each knife clips?
4. A mower has drive wheel of 60 cm diameter. The crank of the mower makes 600 rev/min when it is driven by a tractor, moving at a speed of 2.3 km/hr. If the speed ratio between the crank wheel and land wheel is changed to 27:1, calculate the increase in speed of mower to maintain same speed of crank.
5. In mower, the grass board is provided at the ___________
6. Calculate the total time required to harvest 2.5 hectares of grass by means of a 2 metre mower being operated at 4 km/hr. (Field efficiency=80%)
7. In mower, the pitman transmits the motion to the ___________
8. Which part operates the tractor drawn semi-mounted or mounted type mowers?
9. In mower, the pitman transmits the motion to the ___________
10. A mower has driven wheel of 60 cm diameter. The crank of mower makes 550 rpm, when it is driven by a tractor at a speed of 2 km/h. If speed ratio between the crank wheel and land wheel is changed to 27:1, calculate the increase in speed of mower to maintain the same speed of crank.
11. What horsepower will be required to pull 1.2 m mower working at the speed of 5 km/m length of the mower ad mechanical efficiency is 85%?
12. How many hectares of grass per day of 15 hours can be cut by a mower being operated at the speed of 4.5 km/h and with 4 m cutter bar.
13. A gang mower is the group of ___________
14. How many hectares per day of 10 hours can be cut by a combine with 4 metre cutter bar, when it is running at 4 k/hr?
15. A mower has drive wheel of 60 cm diameter. The crank of the mower makes 600 rev/min when it is driven by a tractor, moving at a speed of 2.3 km/hr. If the speed ratio between the crank wheel and land wheel is changed to 27:1, calculate the increase in speed of mower to maintain same speed of crank.
16. How many hectares per day of 10 hours can be cut by a combine with 4 metre cutter bar, when it is running at 4 k/hr?
17. How many revolutions will each spindle of cotton picker make in the picking zone for a chain belt arrangement in which the speed of spindle is 1400 rpm and remains in the picking zone during 100 cm of forward travel.
18. Calculate the total time required to harvest 4 hectares of grass by means of a 2mm mower being operated at the speed of 4 km/h. Assume field efficiency of mower as 75%?
19. The most common mower, amongst the following is ___________
20. Who invented the first lawn mower?
21. What power is required to pull 1.2 mete mower working at a speed of 4.8 km/hr, if there is a load of 50 kg per metre length of mower and mechanical efficiency is 80%?
22. Which clutch is used in the driving unit of a mower?
23. In cutter bar of mower, the knife sections are revitted to the ___________
24. Calculate the total time required to harvest 2.5 hectares of grass by means of a 2 metre mower being operated at 4 km/hr. (Field efficiency=80%)