NSC Agricultural Technology Ferrous metals: 1.1 Various options are provided

Question

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 (1.1.1 to 1.1.10) in the ANSWER BOOK, e.g. 1.1.11 D.

1.1.1 Aluminium is preferred for the manufacturing of fizzy drink cans because it …
A. allows air to pass through.
B. is resistant to acids.
C. is lightweight.
D. is an elastic material.

1.1.2 All workshops must be equipped with fire extinguishers:
A. Occupational Health and Safety Act, 1993 (Act 85 of 1993)
B. Compensation for Occupational Injuries and Diseases Act, 1993 (Act 130 of 1993)
C. Labour Relations Act, 1995 (Act 66 of 1995)
D. Basic Conditions of Employment Act, 1997 (Act 75 of 1997)

1.1.3 Which ONE of the following is NOT an aim of standardising farm implements?
A. Makes maintenance and repairs easier
B. Makes implements interchangeable and easier to be handled
C. Prevents one tractor company from forming a monopoly
D. Reduces the cost of spare parts.

1.1.4 The … type of power take-off (PTO) enables the operator to stop the forward movement of the tractor without stopping the PTO drive.
A. static
B. common
C. live
D. double-acting

1.1.5 Which ONE of the following is NOT allowed when using a tractor on the farm?
A. Install a roll bar on the tractor.
B. Allow an extra passenger on the tractor.
C. Display a slow-moving vehicle sign.
D. Install a reverse alarm.

1.1.6 The noise of a backup generator can be reduced by …
A. shortening the exhaust pipe.
B. installing a muffler in the exhaust system.
C. reducing the size of the silencer box.
D. switching it off during thunderstorms.

1.1.7 The mechanism on a tractor that ensures that the plough works at a constant depth:
A. Stabilising chains
B. Levelling box
C. Sensitivity element
D. PTO shaft

1.1.8 A locked differential provides equal … to each of the two wheels on an axle.
A. pulling power
B. thrust
C. torque
D. gripping power

1.1.9 A … is a positive mechanical connection between different rotating shafts which allows the shafts to work at different angles.
A. pressure plate
B. crankshaft
C. universal joint
D. top link

1.1.10 Evenly distributes the outflow from the septic tank to the drainage field:
A. Distribution box
B. Silencer
C. Manhole
D. Dividing wall

1.2 Change the UNDERLINED word(s) in each of the following statements to make them TRUE. Write only the word next to the question numbers (1.2.1 to 1.2.5) in the ANSWER BOOK.
1.2.1 Nickel changes the band structure of stainless steel and causes a reduction in striking strength at the same time.
1.2.2 Bronze is an alloy consisting primarily of titanium, usually with tin as the main additive.
1.2.3 Bolts are used to secure wires to electric fence posts to prevent energy loss by the posts and ground.
1.2.4 Galvanised steel contains a magnesium coating that produces poisonous gases that can cause cancer when it is burnt.
1.2.5 The gas welding machine is used by robots in the automotive manufacturing industry to weld the bodies of vehicles.

1.3 Choose a word/term from COLUMN B that matches the description in COLUMN A. Write only the letter (A–H) next to the question numbers (1.3.1 to 1.3.5) in the ANSWER BOOK.
COLUMN A
1.3.1 Separates the ground material from the air in a hammer mill
1.3.2 Separates the chaff and the maize kernels from the combine harvester
1.3.3 Component that allows for the manual lubrication of moving parts on implements
1.3.4 A high-viscosity fluid that is used in the hydraulic system of a tractor
1.3.5 Protects the tractor operator from sustaining serious injuries in case of a tractor roll over.

1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2020 - Paper 1

Worked Solution & Example Answer:1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2020 - Paper 1

1.1.1 Aluminium is preferred for the manufacturing of fizzy drink cans because it …

1.1.2 All workshops must be equipped with fire extinguishers:

1.1.3 Which ONE of the following is NOT an aim of standardising farm implements?

1.1.4 The … type of power take-off (PTO) enables the operator to stop the forward movement of the tractor without stopping the PTO drive.

1.1.5 Which ONE of the following is NOT allowed when using a tractor on the farm?

1.1.6 The noise of a backup generator can be reduced by …

1.1.7 The mechanism on a tractor that ensures that the plough works at a constant depth:

1.1.8 A locked differential provides equal … to each of the two wheels on an axle.

1.1.9 A … is a positive mechanical connection between different rotating shafts which allows the shafts to work at different angles.

1.1.10 Evenly distributes the outflow from the septic tank to the drainage field:

1.2.1 Nickel changes the band structure of stainless steel and causes a reduction in striking strength at the same time.

1.2.2 Bronze is an alloy consisting primarily of titanium, usually with tin as the main additive.

1.2.3 Bolts are used to secure wires to electric fence posts to prevent energy loss by the posts and ground.

1.2.4 Galvanised steel contains a magnesium coating that produces poisonous gases that can cause cancer when it is burnt.

1.2.5 The gas welding machine is used by robots in the automotive manufacturing industry to weld the bodies of vehicles.

1.3.1 Separates the ground material from the air in a hammer mill

1.3.2 Separates the chaff and the maize kernels from the combine harvester

1.3.3 Component that allows for the manual lubrication of moving parts on implements

1.3.4 A high-viscosity fluid that is used in the hydraulic system of a tractor

1.3.5 Protects the tractor operator from sustaining serious injuries in case of a tractor roll over.

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