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Farm Machinery Practice Test: Plant Protection Equipments
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Avg score: 10% • Most missed: “A sprayer having 0.4 litre per minute nozzle discharge rate and 50 cm width of c…”
Plant Protection Equipments topics include: Classification, hydraulic energy sprayers, bucket type and knapsack sprayers, foot separated sprayers, rocking sprayers, compression sprayers, hand compression and power sprayers. Some basic plant protection equipment options are: Handheld weed sprayers: A cost-effective option for small private gardens Knapsack sprayers: A portable, flexible, and efficient machine used to prevent and cure plant diseases and pests Herbicides: A cost-effective weed control method that provides crop safety without stressing plants Sprayers: Used to protect crops... Show more
Farm Machinery Practice Test: Plant Protection Equipments
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25 Questions

1. What is the rotating speed of an agitator in a power sprayer?
2. At where is the pressure lower when the chemical travels through the rubber hose?
3. Which sprayers are operated usually with Internal Combustion engines?
4. In hydraulic sprayer, the air chamber is provided on _________
5. What is the Nozzle Flow Rate (NFR)?
6. A field sprayer having a horizontal boom with 20 nozzles spaced 40 cm apart is to be designed for maximum application rate of 650 l/ha at nozzle pressure of kPa and forward speed of km/h. What will be the pump capacity in l/min?
7. What is the pressure at which Power sprayers are operated?
8. In hydraulic sprayers, the pressure gauge is equipped __________
9. In hydraulic sprayers, the amount of vertical adjustment for spraying on plants of various heights varies from ______
10. Mysto hand is a type of which sprayer?
11. A tractor sprayer is fitted with 20 hollow cones nozzles to attain application rate of 200 l/hr. During the calibration test, the nozzle flow rate was found to be 1.25 l/min whereas, the rated nozzle flow rate was found to be 0.473 l/min was available at 275 kPa. If the nozzle produces droplets with volume median diameter 200 μm at 1 Mg Pascal, the droplet at the desire flow rate is?
12. The tank capacity of hydro-pneumatic sprayers, is about ________
13. What is rate of the spinning disc, attached to the motor, in Ultra low volume sprayer?
14. An air blast of sprayers is to be operated at 3 km/hour and desired application rate is 18 l/tree. The tree spacing is 9*9 m and nozzle delivers 5 l/min at operating pressure of 4*105 N/m2. How many nozzles would be needed?
15. Vane type or Propeller type are which type of pump?
16. In hydraulic sprayer, the cut off valve is used to control the _________
17. Which part of power sprayer is used to prevent corrosion?
18. Hand atomizer is used for spraying in _______
19. What is the formula used for calculating VMD, when pressure is less than 675 kPa?
20. In a pump, suction volume is 25 litres/min and the pump efficiency is 85%. Calculate the shaft power at a pressure of 35kg/cm2
21. Tank of hydraulic sprayers is made of ________
22. A sprayer having 0.4 litre per minute nozzle discharge rate and 50 cm width of coverage, is required to apply 0.8 kg of active ingredient per hectare. If one kg of active ingredient is contained in 120 litres of spray solution, determine the speed of the sprayer.
23. Which part of power sprayer is used to break the liquid into desired spray and deliver to plants?
24. Which sprayer is carried on the back of the operator?
25. What is pump efficiency?

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