1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2021 - Paper 1
Question 1
1.1 Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1.... show full transcript
Worked Solution & Example Answer:1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2021 - Paper 1
Step 1
1.1.1 A part where lubricants are applied to a bearing preventing it from seizing on the shaft.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is C: Grease nipple. This is the component where lubricants are applied to bearings.
Step 2
1.1.2 Electricity, heat and noise are examples of ... hazards.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is D: physical. These types of hazards can cause harm to individuals.
Step 3
1.1.3 ... is not sold as a stand-alone motor fuel, although in its pure form it is commonly used as racing fuel.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A: Ethanol. Ethanol is often blended with gasoline rather than sold on its own.
Step 4
1.1.4 A travelling sprinkler gun uses a ... pipe that winds around a steel drum while the sprinkler travels across a field to water the crop.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is B: steel. Steel is commonly used in the construction of sprinkler pipes.
Step 5
1.1.5 ... irrigation applies water directly to the roots of a plant.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A: Drip. Drip irrigation is an efficient method for delivering water to plants.
Step 6
1.1.6 Farm implements and tractor spares must comply with certain requirements, e.g. interchangeability. This is known as ....
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is D: standardisation. This ensures compatibility between different farming equipment.
Step 7
1.1.7 A ... water purification system can be installed on the water delivery system of a farmhouse to remove impurities from borehole water.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A: reverse osmosis. This technology is effective for water purification.
Step 8
1.1.8 Round bales weigh between ....
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A: 1 000 kg and 3 500 kg. This weight range is typical for round bales.
Step 9
1.1.9 A ... separates the grounded material effectively from the air in the hammer mill.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is C: cyclone. Cyclones are used in hammer mills for material separation.
Step 10
1.1.10 Which ONE of the following CANNOT cause a power take-off shaft to fail when providing drive to a baler?
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A: A work angle less than 20 degrees. This condition is generally acceptable.
Step 11
1.2.1 A speedometer is installed on a harvester to measure the quantity of the harvested crop.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The word 'speedometer' should be changed to 'weighing scale' to accurately reflect its functionality.
Step 12
1.2.2 Manganese is the only alloy element that does not attribute to the corrosive resistant property of stainless steel.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The word 'only' should be replaced with 'major' to reflect that manganese is a significant element in stainless steel.
Step 13
1.2.3 A system of pulleys, belts and chains keeps the weight of the cylindrical bale constant while it is turning.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The word 'weight' should be changed to 'speed' to describe the function appropriately.
Step 14
1.2.4 Compressed air is used as a hydraulic fluid in the bottle jack of a car.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The word 'Compressed air' should be changed to 'Hydraulic oil' for accuracy.
Step 15
1.2.5 Oxygen is a poisonous gas released by a motor vehicle.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The word 'Oxygen' should be corrected to 'Carbon monoxide' to identify the actual poisonous gas.
Step 16
1.3.1 An instrument used to measure the rate of evapotranspiration in a crop
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is B: evaporation pan, which is commonly used for this purpose.
Step 17
1.3.2 A method used to measure the moisture content of soil
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is C: jug, as it is often used to collect soil samples for moisture testing.
Step 18
1.3.3 A mechanical connection that allows two connected shafts to rotate at an angle
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A: differential lock, which enables angular rotation between shafts.
Step 19
1.3.4 Prefers technological advancement that encourages the use of animal-driven implements.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is D: mechanisation, reflecting a preference for modern agricultural methods.
Step 20
1.3.5 Is used to drive system of a vehicle to direct steering and the movements of a car.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The correct answer is A: differential lock, which aids in steering control.
