MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Farm Machinery knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
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? |
| A. | 10 |
| B. | 20 |
| C. | 30 |
| D. | 40 |
| Answer» C. 30 | |
| 2. |
During a test, discharge measured through a hydraulic spray nozzle was 45010-6 m3/min at nozzle operating pressure of 284 kPa. If the pressure is increased by 10%, the percent increase in discharge will be ________ |
| A. | 2.82% |
| B. | 3.87% |
| C. | 4.87% |
| D. | 5.87% |
| Answer» D. 5.87% | |
| 3. |
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? |
| A. | 44 |
| B. | 46 |
| C. | 48 |
| D. | 50 |
| Answer» D. 50 | |
| 4. |
A hydraulic sprayer fitted with hollow cone nozzle is required to be calibrated for application rate 150 l/ha. The sprayer speed is 6.5/h, nozzle spacing is 50 cm, and the available 0.787 mm orifice diameter nozzle is rated at 0.473 l/min. What will be the nozzle flow rate? |
| A. | 0.0135 l/s |
| B. | 0.0136 l/s |
| C. | 0.0137 l/s |
| D. | 0.0138 l/s |
| Answer» C. 0.0137 l/s | |
| 5. |
What is the formula used for calculating VMD, when pressure is less than 675 kPa? |
| A. | ( frac{(VMD1)}{VMD2}= Big {( frac{P1}{P2})^{ frac{2}{3}} Big } ) |
| B. | ( frac{(VMD1)}{VMD2}= Big {( frac{P2}{P1})^{ frac{2}{3}} Big } ) |
| C. | ( frac{(VMD2)}{VMD1}= Big {( frac{P1}{P2})^{ frac{2}{3}} Big } ) |
| D. | ( frac{(VMD2)}{VMD1}= Big {( frac{P1}{P2})^{ frac{1}{3}} Big } ) |
| Answer» C. ( frac{(VMD2)}{VMD1}= Big {( frac{P1}{P2})^{ frac{2}{3}} Big } ) | |
| 6. |
What will be the diameter of base of a spray cone in a boom sprayer? |
| A. | D = 2h tan ( frac{ }{2} ) |
| B. | D = 2h/tan ( frac{ }{2} ) |
| C. | D = 2h + tan ( frac{ }{2} ) |
| D. | D = 2h tan ( frac{ }{2} ) |
| Answer» B. D = 2h/tan ( frac{ }{2} ) | |
| 7. |
A sprayer having 0.4 L/min nozzle discharge rate and 50 cm width of coverage is required to apply 0.8 kg of active ingredient per hectare. If 1 kg of active ingredient is content in 120 L of spray solution. What will be the speed of travel of sprayer? |
| A. | 2 km/h |
| B. | 5 km/h |
| C. | 3 km/h |
| D. | 4 km/h |
| Answer» C. 3 km/h | |
| 8. |
A hydraulic sprayer fitted with hollow nozzle is required to be calibrated for application rate 150 L/ha. The sprayer speed is 6.5 km/h. Nozzle spacing is 50 cm. The available 0.787 mm orifice diameter. Nozzle is rated at 0.473 L/min. What is the nozzle flow rate? |
| A. | 49.51 ( frac{L}{h} ) |
| B. | 54.44 ( frac{L}{h} ) |
| C. | 48.75 ( frac{L}{h} ) |
| D. | 24.10 ( frac{L}{h} ) |
| E. | |
| Answer» D. 24.10 ( frac{L}{h} ) | |
| 9. |
What is the Nozzle Flow Rate (NFR)? |
| A. | NFR = application rate + area covered by single nozzle |
| B. | NFR = application rate * area covered by single nozzle |
| C. | NFR = application rate area covered by single nozzle |
| D. | NFR = ( frac{application , rate}{area , covered , by , single , nozzle} ) |
| Answer» C. NFR = application rate area covered by single nozzle | |
| 10. |
During a discharge measured through a hydraulic spray nozzle was 450*10-6m3/min at nozzle operating pressure of 284 kPa. If the pressure is increased by 10%. The percent increase in discharge will be _______ |
| A. | 4.9% |
| B. | 5.1% |
| C. | 3.6% |
| D. | 6.4% |
| Answer» B. 5.1% | |
| 11. |
An air blast of sprayer is to be operated at 3 km/h and application rate is 18 l/tree. The spacing is 9m*9m and each nozzle delivers 5 lit/min and operating process of 4*105 N/m2. If one half row is sprayed from each side of the machine. How many sprayers will be needed? |
| A. | 30 |
| B. | 50 |
| C. | 20 |
| D. | 40 |
| Answer» E. | |
| 12. |
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. |
| A. | 4 km/h |
| B. | 3 km/h |
| C. | 5 km/h |
| D. | 6 km/h |
| Answer» D. 6 km/h | |