NSC Agricultural Technology Electrical safety: Various options are provided as

Question

Various options are provided as possible answers to the following questions. Choose the answer and write the letter (A–D) next to the question number (1.1.1–1.1.10) in the ANSWER BOOK, for example 1.1.1 D.

1.1.1 A/an … insulator can be used to prevent a short circuit between the electric wires and the posts used for game fencing.

A. polyvinyl chloride
B. aluminum
C. paper
D. brass

1.1.2 Safety signs fastened to an electrified fence must be …

A. clearly visible to pedestrians.
B. made of cardboard.
C. made of plastic with a yellow background.
D. earthed when made of metal.

1.1.3 The process whereby household water is sent through two different liquids separated by a permeable film. This film allows water to pass through on molecular level:

A. Distillation
B. Evapotranspiration
C. Filtration
D. Reverse osmosis

1.1.4 A GPS device shows the correct position, accurate within a square metre of where you are on Earth.

The abbreviation GPS stands for …

A. geographical positioning system.
B. grid positioning system.
C. global positioning system.
D. general positioning system.

1.1.5 Which ONE of the following power take-off safety precautions is wrong and does NOT fit in with the rest?

A. Stop the power take-off before dismounting the tractor.
B. Always exit the power take-off shaft at a 90° angle.
C. Ensure that power take-off safety screens are in place before you start working.
D. Replace cracked or defective power take-off safety screens immediately.

1.2 Change the UNDERLINED word(s) in each of the following statements to make the statements TRUE. Write only the answer next to the question number (1.2.1–1.2.5) in the ANSWER BOOK.

1.2.1 Corrosion causes the metal from the melted pool to run down when doing vertical up MIG welding.

1.2.2 Carbon monoxide needs to be removed from the welding joint by means of a shielding gas when using the MIG welder.

1.2.3 The rotor converts the rotational energy into electrical energy in a wind turbine.

1.2.4 Fungi are the most important micro-organisms that ensure the effective working of the septic tank system.

1.2.5 Standardisation is the exact moment when the needles lift the binding rope to bind the compressed hay.

1.3 Choose a word/term from COLUMN B that matches the description in COLUMN A. Write only the letter (A–G) next to the question number (1.3.1–1.3.5) in the ANSWER BOOK, for example 1.3.6.

COLUMN A                   COLUMN B
1.3.1 Captures large dust particles in the air filtration system A. three-point coupling
1.3.2 Inventor is Harry Ferguson B. thermosiphon system
1.3.3 Facilitates the changing of gears in a tractor gearbox C. synchronizing unit
1.3.4 The most common cooling system                    D. overview system
1.3.5 Ensures correct working of a diesel pump.         E. calibration
                                                         F. pre-cleaner
                                                         G. draw bar

Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2016 - Paper 1

Worked Solution & Example Answer:Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2016 - Paper 1

1.1.1 A/an … insulator can be used to prevent a short circuit between the electric wires and the posts used for game fencing.

1.1.2 Safety signs fastened to an electrified fence must be …

1.1.3 The process whereby household water is sent through two different liquids separated by a permeable film.

1.1.4 The abbreviation GPS stands for …

1.1.5 Which ONE of the following power take-off safety precautions is wrong and does NOT fit in with the rest?

1.2.1 Change the UNDERLINED word(s) in each of the following statements to make the statements TRUE.

1.2.2 Change the UNDERLINED word(s) in each of the following statements to make the statements TRUE.

1.2.3 Change the UNDERLINED word(s) in each of the following statements to make the statements TRUE.

1.2.4 Change the UNDERLINED word(s) in each of the following statements to make the statements TRUE.

1.2.5 Change the UNDERLINED word(s) in each of the following statements to make the statements TRUE.

1.3.1 Choose a word/term from COLUMN B that matches the description in COLUMN A.

1.3.2 Choose a word/term from COLUMN B that matches the description in COLUMN A.

1.3.3 Choose a word/term from COLUMN B that matches the description in COLUMN A.

1.3.4 Choose a word/term from COLUMN B that matches the description in COLUMN A.

1.3.5 Choose a word/term from COLUMN B that matches the description in COLUMN A.

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