Farm Power and Machinery End Term Exam Latest
Update, Questions and Answers
1. Tractive Work
Answer - Requiring pulling or drawing efforts. Ex. Plowing or land preparation, planting and seeding,
crop cultivation, harvesting, and transport
2. Stationary Work
Answer - Example. silage cutting, feed grinding, threshing, winnowing and lifting of irrigation water.
3. Farm Power
Answer - Farm power is used for operating different types of machinery like tillage, planting, plant
protection, harvesting and threshing machinery and other stationary jobs like operating irrigation
equipment, threshers/shellers / cleaners/ graders, etc.
4. Human power
Answer - Is the main source for operating small implements and tools at the farm. An average man
can develop maximum power of about 0.1hpfordoing farm work
5. What is Domestic animals/animal power and where it is used.
Answer - The average force a draft animal can exert is nearly one-tenth of its body weight. Draft or
work animals can develop an output of 0.7-1.3horsepower.
i. Small farm sizes
ii. Rolling topography
iii. Crops not suited for mechanization
iv. Lack of suitable fuel at reasonable cost
v. High initial cost of mechanical equipment
6. Plentiful supply of low cost labor
Answer - Reasons for use of domestic animals:
7. What is the maximum plowing per hectare of animal power?
Answer - 25 -50 hours
8. What is the total walking distance per hectare of animal power?
Answer - 77 km
9. About __________of the weight of the carabao is the optimum draft the animal can sustain.
Answer - 10%- 15%
, 10. ELECTRICAL POWER
Answer
i. Used mostly in the form of electrical motors on the farms
ii. Used for water pumping, dairy industry, cold storage, farm product processing, fruit industry
and many similar things.
iii. Simple and compact in construction
iv. Light in weight per hp
v. Require limited attention, care and servicing
vi. Start easily and readily
vii. Operate quietly
viii. Produce smooth uniform power
11. Advantage of electric motor
Answer - Adapted to uniform and variable loads
12. Single-phase alternating current
Answer - (< 5 hp)
13. Three-phase alternating current
Answer - (> 5 hp)
14. Direct current
Answer - Battery
15. If elec. motor will replace a human, ________ can do the job.
Answer - ¼ - 1/3 hp
16. To replace an engine, multiply engine hp by ______
Answer - 2/3
17. To replace tractor PTO a mechanic should use the ________rating.
Answer - same
18. Unlimited supply, lighting, heating is the most common application
Answer - Solar Energy
19. Where can Solar Photovoltaic System be used?
Answer - Off-grid water pumping, lighting, communication, refrigeration on remote locations
20. What is the use of the PV Module?
Answer - Converts solar energy into electricity (DC).
Update, Questions and Answers
1. Tractive Work
Answer - Requiring pulling or drawing efforts. Ex. Plowing or land preparation, planting and seeding,
crop cultivation, harvesting, and transport
2. Stationary Work
Answer - Example. silage cutting, feed grinding, threshing, winnowing and lifting of irrigation water.
3. Farm Power
Answer - Farm power is used for operating different types of machinery like tillage, planting, plant
protection, harvesting and threshing machinery and other stationary jobs like operating irrigation
equipment, threshers/shellers / cleaners/ graders, etc.
4. Human power
Answer - Is the main source for operating small implements and tools at the farm. An average man
can develop maximum power of about 0.1hpfordoing farm work
5. What is Domestic animals/animal power and where it is used.
Answer - The average force a draft animal can exert is nearly one-tenth of its body weight. Draft or
work animals can develop an output of 0.7-1.3horsepower.
i. Small farm sizes
ii. Rolling topography
iii. Crops not suited for mechanization
iv. Lack of suitable fuel at reasonable cost
v. High initial cost of mechanical equipment
6. Plentiful supply of low cost labor
Answer - Reasons for use of domestic animals:
7. What is the maximum plowing per hectare of animal power?
Answer - 25 -50 hours
8. What is the total walking distance per hectare of animal power?
Answer - 77 km
9. About __________of the weight of the carabao is the optimum draft the animal can sustain.
Answer - 10%- 15%
, 10. ELECTRICAL POWER
Answer
i. Used mostly in the form of electrical motors on the farms
ii. Used for water pumping, dairy industry, cold storage, farm product processing, fruit industry
and many similar things.
iii. Simple and compact in construction
iv. Light in weight per hp
v. Require limited attention, care and servicing
vi. Start easily and readily
vii. Operate quietly
viii. Produce smooth uniform power
11. Advantage of electric motor
Answer - Adapted to uniform and variable loads
12. Single-phase alternating current
Answer - (< 5 hp)
13. Three-phase alternating current
Answer - (> 5 hp)
14. Direct current
Answer - Battery
15. If elec. motor will replace a human, ________ can do the job.
Answer - ¼ - 1/3 hp
16. To replace an engine, multiply engine hp by ______
Answer - 2/3
17. To replace tractor PTO a mechanic should use the ________rating.
Answer - same
18. Unlimited supply, lighting, heating is the most common application
Answer - Solar Energy
19. Where can Solar Photovoltaic System be used?
Answer - Off-grid water pumping, lighting, communication, refrigeration on remote locations
20. What is the use of the PV Module?
Answer - Converts solar energy into electricity (DC).
