- - AGRICULTURE CORE CURRICULUM - - (CLF2000) Advanced Core Cluster: AGRICULTURAL MECHANICS (CLF2800) Unit Title: EQUIPMENT OPERATION & MAINTENANCE ___________________________________________________________________________ (CLF2849) Topic: EQUIPMENT OPERATION & Time Year(s) MAINTENANCE UNIT EXAM 1 hour 1 / 2 / 3 / 4 ___________________________________________________________________________ NAME __________________________________ DATE __________________________________ PER. __________________________________ A. True or False 1. _____ If water has mixed with the crankcase oil, the oil will be a grayish color. 2. _____ Pull out the choke control before starting a cold diesel engine. 3. _____ When starting an engine, do not crank the starting motor more than two minutes. 4. _____ A diesel engine on most tractors can be shut off by turning the key to the off position. 5. _____ Gear selection is based on desired forward speed and engine speed. 6. _____ Always wear the seat belt if the tractor does not have rollover protection. 7. _____ Extra weight on a tractor increases breaking distance. 8. _____ Black crankcase oil does not necessarily indicate that an oil change is due. 9. _____ Because agricultural equipment usually works in very dusty conditions, service engine air cleaners at least every 100 hours. 10. _____ A single fuel filter system is usually serviced every 500 hours. 11. _____ In a double fuel filter system, the first-stage filter and the second-stage filter are usually serviced at the same time. 12. _____ The air must be bled out of a diesel fuel system after fuel filters are changed. 13. _____ Lead-acid batteries store energy in a chemical form to release electricity when need. 14. _____ Dirt or foreign matter on top of the battery can absorb moisture and cause excessive battery drain or voltage loss. 15. _____ Liquids confined in an enclosed space can be compressed when pressure is applied. 16. _____ Liquids can be classified as flexible solids. 17. _____ Power transmitted by hydraulic force is limited to straight- line action. 18. _____ Never use your hand to search for pinhole leaks in hydraulic lines. 19. _____ The larger the droplet size (coarse spray), the greater the risk of chemical drift. 20. _____ Keep spray nozzles close to the ground by using wide fan angles. B. Matching 1. _____ Uses high speed and low pressure a. Prevent side of fluid to do work rollovers 2. _____ Uses low speed and high pressure b. Caution of fluid to do work 3. _____ Pesticide Category I signal word/s c. Prevent falls from tractor 4. _____ Pesticide Category II signal word/s d. Hydrostatic 5. _____ Pesticide Category III signal word/s e. Hydrodynamic 6. _____ Lock brake pedals together before f. Prevent PTO operating at transport speeds. accidents 7. _____ Back up steep hills. g. Prevent operator run-over 8. _____ Operate tractor from the operator's h. Danger Poison seat or platform only. 9. _____ Keep the master shield and implement i. Warning guard shields in place. 10. _____ Place transmission levers in neutral j. Prevent rear or park and set parking brake. rollovers C. Multiple Choice 1. _____ Which is not a way to operate efficiently? a. Drive in straight lines. b. Drive in the highest gear. c. Minimize overlap. 2. _____ Which is not a function of engine oil? a. Reduces wear by cutting friction. b. Cushions loads by absorbing shock. c. Seals between the engine head and block. d. Cools parts by absorbing heat as it circulates. 3. _____ Which is not a prestart check? a. Check fuel tank level. b. Check engine crankcase oil level. c. Grease all lube points. d. Check manifold pressure. 4. _____ Which is not an important factor in selecting tractor forward speed? a. Safe operation b. Proper implement performance c. Tractor weight d. Power capability of tractor 5. _____ Which is the specific gravity of a fully charged battery? a. 1.000 b. 1.120 c. 1.265 d. 1.835 6. _____ Which is the specific gravity of a fully discharged battery? a. 1.000 b. 1.120 c. 1.265 d. 1.835 7. _____ Which is not a common component part of a hydrostatic hydraulic system? a. Air filter b. Reservoir c. Pump d. Control Valves e. Cylinder (Ram) 8. _____ Which is not an important chemical poison factor? a. The time span of exposure. b. The strength of the poison. c. The brand name of the poison. d. The contact area of the body. 9. _____ Which is not a major poison contact area of the body? a. Skin and eyes b. Mouth c. Lungs d. Hair 10. _____ Which is not a safety step to prevent collisions with other vehicles while driving a tractor on the road? a. Use flashers and lights. b. Keep the slow moving vehicle emblem clean and visible. c. Add extra weight onto the tractor to decrease braking distance. d. Pull over to let faster traffic pass. Test Key: A. True or False B. Matching 1. T 1. E 2. F 2. D 3. F 3. H 4. F 4. I 5. T 5. B 6. F 6. A 7. T 7. J 8. T 8. C 9. F 9. F 10. T 10. G 11. F C. Multiple Choice 12. T 1. B 13. T 2. C 14. T 3. D 15. F 4. C 16. T 5. C 17. F 6. B 18. T 7. A 19. F 8. C 20. T 9. D 10. C 6/28/91 OLR/tf #%&C