Maintenance Management Farming N4 — Document
November 2018 — N4 — Maintenance Management Farming
N4
2018
Nated Business
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Q1— Section header —
1.1List FIVE general safety rules when workin g with electrical equipment and machines. (5\
1.2Various options are given as possible answers to the following questions. Choose the answer and write only the letter (A D\ next to the question number (1.2.1
1.2.10\in the ANSWER BOOK.
1.2Which component is not part of the lubrication system oil
1.2.2 Which component is not part of the coolant recovery system?
1.2.3 An unsafe action includ nsafe construction or scaffolding
1.2.4 working in an unsafe position. working at an unsafe speed or m
1.2.5 Good housekeeping means ... veryone needs to respect each other in the workshop
1.2.6 The responsibility of the employer includes ... ensuring that workers are always clean and neat at work
1.2.7 The responsibility of the employee includes ... ensuring a safe work environment without hazards
1.2.8 These components are part of the cooling system adiator,
1.2.9 These are examples of oil pumps ane and gear oil pumps
1.2.10 This is a high voltage electric device for igniting the air fuel mixture
Q2— Section header —
2.1Explain the outlet/exhaust stroke of the four stroke petrol engine and make a ne at fully labelled sketch of the outlet stroke to support your explanation. (10 1\ (10\
2.2Explain the valve operation/movement by starting with the move ment of the crankshaft turning the camshaft. (6\
2.3Make a neat labelled sketch of the cam lobe indicating the lift of the lobe. (2\ 4090524
2.4Study FIGURE 1 and l abel the different components of the engine . Write the answer next to the questi on number (A \ the ANSWER BOOK.
Q3— Section header —
3.7\in th ANSWER BOOK. Correct the statement if it is false.
3.1A dumping site do es not have to be fenced.
3.2It is the responsibility of the employee to organise safety courses.
3.3The National Environmental Man agement: Waste Act ( No. 59 of 2008\ ims to prevent pollution and ecological degradation
3.4Long term water pollution may cause serious illness and finally death to humans.
3.5Flammable gas and non flammable gas cylinders should be stored separately
3.6Persons should be allo wed to ride in the bucket of loaders as long as they adhere to all safety regulations.
3.7Safety guards should always be in place when operating any piece of machinery. [10] 409052410
Q4— Section header —
4.1Name TWO reasons why t is important to use welding gloves hen welding
4.2Make a neat labelled drawing showing how you will counter act the defect of buckling, bending or twisting of a welded joint. (6\
4.3Name the TWO types of currents in which elding can be done (2\
4.4After welding a work piece, you realise the work piece started to buckle and ben What is the cause of internal stress inside the welded joint? (4\ [14]14
Q5— Section header —
5.1A water pump is driven by an electrical motor. The mo tor draws a current of 10 A connected to 230 V. The cost per unit is R3.00 and the pump is operational for 3 hours per day for a 30 day month. Calculate the following:
5.1.1The total power consumption of the electrical motor in kW.
5.1.2The total operational cost of the pump per month. (2 3\ (6\
5.2Explain electro magnetic induction in relation to the electric motor. (6\
5.3You assume there is a problem with the coils inside the electrical motor. Expla in the safety regulations when measuring the resistance of the starter and running coils. (3\ [15]15
Q6— Section header —
6.1On a setting out drawing the scale is 1 100. Answer the following questions
6.1.1How many metres on the ground will 50 m on the drawing represent
6.1.2How many millimetres (mm\on a drawing will 6, 2 meters represent on the ground (2 2\
6.2Choose the correct word(s\ from those given in brackets. Write only the word(s\ next to the question number (6.
6.2.8\the ANSWER BOOK.
6.2.1The more water used the (weaker/stronger\ the concrete will be come
6.2.2Larger sized stone require the (smallest quantities /most\sand and cement.
6.2.3During the cold weather the curing perio d for co ncrete should be (lengthened/shortened\
6.2.4Galvani ed ties (should/should not\e placed over vertical joints.
6.2.5Two bricks knocked to gether should give off a (ringing/dull\nd.
6.2.6Face bric ks are normally used for (cavity wall s/half brick walls\.
6.2.7Concrete blocks (should not/should\be moistened before they are laid.
6.2.8Timber mainly u sed for roof timbers are (soft wood/hard wood\ (8 1\ (8\
6.3Indicate whether the following statements are TRUE or F ALSE. Choose the answer and write 'T rue or 'F alse
6.3.8\in the ANSWER BOOK
6.3.1Specifications must be set to a standard to catch out the building contractor
6.3.2A suitable building site must have a slan t or slope of at least 2% to the North.
6.3.3The wind does not play a role when buildings are placed or grouped.
6.3.4If the ground is of good quality the foundations can be smaller than indicated on the drawings.
6.3.5Building sand can c ontain salt if the salt content is lower than 8%.
6.3.6Concrete must be placed within one hour after mixing.
6.3.7A door is right hung when the door opens to the left.
6.3.8The door frame will be built in with the first layer of bricks. (8 1\ (8\ [20] TOTAL: 10020
Topics Identified
1
Leadership
Mark Allocation
Total100 marks
Sections15 + 26 + 10 + 14 + 15 + 20 = 100 marks
Paper information
TitleDocument
SubjectMaintenance Management Farming
LevelN4
Document typeQuestion paper
Year2018
MonthNovember
Pages7
Downloads3
Examination context
Decade2010s
Years ago8y
SeasonSpring (SH)
Start dayThursday
Exam periodNovember 2018
Days since exam2,901
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