Candidates were able to:

-           define machine maintenance;
-           explain the given maintenance terminologies.
However, they were unable to state the reasons why machine maintenance is important.
The expected response to question 8 is as given below:

(a)       Machine maintenance: is any action performed on a machine to keep it
in good working condition.

                        (b)       Reasons for machine maintenance
                                    to
                                   

1. prolong the life-span of the machine;
2. keep the machine in good working order;
3. ensure efficiency of the machine;
4. prevent accident in the workplace during use;
5. give a good output;
6. avoid breakdown of machine;
7. reduce wastages;
8. reduce overhead cost;
9. ensure effectiveness.

(c)        Corrective maintenance
           
(i)         Is the type of maintenance carried out when a machine has
                        already broken down.

                        It involves the following actions:
                        -           identification of the problem;
                        -           isolation of the problem;
                        -           rectification of the problem.

            (ii)        Predictive maintenance

Is a type of maintenance performed at intervals to monitor the condition of a machine in order to avoid sudden breakdown of the machine.

It involves the following actions:
-           routine inspection;
-           routine services;