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Q1— Section header —
1.1Indicate whether the following statements are T RUE or FALSE. Choose the answer and write only True or
1.1.10\the ANSWER BOOK.
1.1.1The top half of a cylinder block houses the cylinders and the camshaft.
1.1.2The cylinder head keeps all th e oil to supply the oil pump with lubrication.
1.1.3The outlet valve is open during the exhaust stroke.
1.1.4Valve timing is the pr ecise opening and closing of valves.
1.1.5The distributor converts battery voltage to very high voltage.
1.1.6The ignition coil directs the high voltages to each engine cylinder.
1.1.7Cold weather can reduce the efficiency of the battery.
1.1.8A slow charge for a battery is between 15 50 mps.
1.1.9Symptoms of a faulty diesel injector include black smoke.
1.1.10Symptoms of a very rich fuel mixture include flooding. (10 1\ (10\
1.2Identify the indicated components of the petrol fuel system in FIGURE 1 by writing
1.3State TWO functions of the component marked C in FIGURE 1. (2\ 4090535
1.4Complete the following sentence by filling in the missing word or words. Write only the word or words next to the question number (1.
1.4.3\in the ANSWER BOOK.
1.4.1A battery contains a liquid solution of sulphuric acid and
1.4.2A battery supplying 3 amps for 20 hours is grade as a amp hour battery.
1.4.3hydrometer is use to do a (3 1\ (3\ [20]20
Q2— Section header —
2.1Name the function and purpose of the final drive. (2\
2.2Copy FIGURE 2 below in the ANSWER BOOK and indicate the path of the power transfer for forth gear by drawing a dark line through the applicable gears and shafts. FIGURE 2 (3\
2.3Identify the marked components of the suspension in FIGURE 3 by writing
2.4hoose a description from COLUMN B that matches a word or words in COLUMN A regarding brake problems in the hydraulic braking system . Write
2.4.5\in the ANSWER BOOK. COLUM COLUM
2.4.5Grab Brake shudder Pull to one side Brake fade Low fluid level in reservoir
2.5Identify the different arked parts of the final drive in FIGURE 4 by
Q3— Section header —
3.1Make a neat labelled sketch showing the THREE different types of oxygen acetylene gas fl ames. N ame each flame
3.2Identify the different marked parts of the OA b razing system in FIGURE 5 by writing the answer next to the
3.3Make a neat lab elled sketch showing the oxygen acetylene r ightward welding method. I
Q4— Section header —
4.1Explain FIVE importan t maintenance and caring tips for electrical motors. (5\
4.2alculate the total average maximum load in kW by studying TABLE 1 APPLIANCE TOTAL CONNECTED LOAD IN WATT
4.3Calculate the averag e maximum cost for the load calculated in
Q4— Section header —
4.4Indicate whether the following statements are TRUE or FALSE. Choose the answer and write only True or
4.4.2\ the ANSWER BOOK.
4.4.1The most common cause of electrical shock is owing to bad grounding of the equipment.
4.4.2The 1, mm electr ical wire is sufficient for 20 a mp plug wiring. (2 1\ (2\
Q5— Section header —
5.1Make a neat labelled sketch showing an open eave roof structure. Include the following in the sketch: urlin, rafter, tie beam, roof covering, wall plate, wall, flex board (ceiling\
5.2Ex plain TWO functions of the open eave roof structure. (2\
5.3Choose a word or words from COLUMN B to match an item in COLUMN A. Write only the letter (A L\next to the question number (5.3.1
5.3.10\in the ANSWER BOOK. COLUM COLUM
5.3.10
5.4Indicate whether the following statements are TRUE or FALSE . Choose the answer and write only True or
5.4.3\ the ANSWER BOOK.
5.4.1A double pitched roof mostly require TWO down pipes per slope.
5.4.2The a verage water consumption per p erson per day is 25 litres for water piped to a house.
5.4.3In septic tank the sewerage is digested by anaerobic bacteria until very little solids remain so that it is seldom necessary to clean the tank. (3 1\