Farm-Mechanization.pdf

Farm Mechanization MULTIPLE CHOICE 1. (1-4) A 1000 kg carabao traveling t v kph is pulling moldboard plow whose width of cut is w centimeter at a depth of d inches. If the soil draft is s kg/sq. cm., a. 2, 000 b. 5.85 swd c. 5.59 swd d. 5.95 sw e. nota...

Farm Mechanization MULTIPLE CHOICE 1. (1-4) A 1000 kg carabao traveling t v kph is pulling moldboard plow whose width of cut is w centimeter at a depth of d inches. If the soil draft is s kg/sq. cm., a. 2, 000 b. 5.85 swd c. 5.59 swd d. 5.95 sw e. nota ANS: C PTS: 1 2. At the given velocity, how long will it take to plow rectangular field whose length is L meters and W meters wide? (in hrs) a. LW / 10 VW c. LW / 10 VW e. nota b. LW / 10 VW d. LW / 10 VW ANS: D PTS: 1 3. If the weight of the carabao is increased to 1, 500 kg by how many percent is the total pull exerted by the carabao increased? a. 50 % b. 33.33% c. 30 % d. 53.33 % e. 0% ANS: E PTS: 1 4. If the succeeding pass overlaps the previous pass by 10%, by how much longer will it take to plow the same field in no. 2? a. LW / 90 VW c. LW / 9 VW e. nota b. LW / 9 VW d. LW / 90 VW ANS: A PTS: 1 5. (5-6) A two-hectare rice field whose length is twice its width is to b harvested by stripper combine whose verge spd will be 5 kph. Field sampling of the crop showed 0.60 kg paddy per sq. meter. If the combine was able to finish the area in two hours. How wide is the swath of the combine? a. 2 m c. 6.6 ft. e. all of the above b. 79 in. d. 2.2 yards ANS: E PTS: 1 6. Based on the field area sampling what will be the total yield of the 2-hectare field? a. 12, 200 kg c. 12, 200 x 103gm e. all of the above b. 423, 288 oz. d. 26, 840 lbs ANS: B PTS: 1 7. (7-10) A 6-nozzle boom, sprayer is mounted at the back of a four wheel-tractor. The nozzles are arranged 150 cm apart along the boom length. Each nozzle has a 60 degree spray angle. each nozzle delivers k li/min. At what height must the boom be raised, relative to the ground level, so that the spray from each nozzle does not overlap upon reaching the top of rice plant canopy which is 50 cm tall? a. 108 cm b. 180 cm c. 93.3 cm d. 309.8 cm e. 136.6 cm ANS: B PTS: 1 8. What is the effective swat of the boom spryer under the condition in no. 7?  a. 150 cm b. 750 cm c. 75 cm d. 900 cm e. 90 cm ANS: D PTS: 1 9. If the tractor travels at 5 kph with 95% field efficiency, what will be the spraying capacity (in ha/h)under the condition in no. 8? a. 4.25 b. 4.52 c. 4.28 d. 4.70 e. 4.75 ANS: D PTS: 1 10. If each nozzle delivers one liter per minute, how many will the boom sprayer deliver per hectare under the conditions in no. 9? a. 84.11 li/ha b. 84.71 li/h c. 79.65 li/ha d. 76.60 li/ha e. 75.79 li/ha ANS: A PTS: 1