Carpentry And Joinery (Paper 2) WASSCE (SC), 2017

Question 6

 

(a)        State four causes of accident on a work site.
(b)        state four safety rules to be observed when using sharp edge cutting tools.
(c)        list the portable power tool used for each of the following operation on
site:

  1. Cutting rafters to length;
  2. Cutting a mould on a door frame;
  3. Cutting mortise for a mortise lock;
  4. Smoothing the surface of a door.

Observation

Majority of the candidates were able to:

  • State four causes of accident on a work site;
  • State four safety rules to be observed when using sharp edge cutting tools.

 

However, majority of them were unable to:

  • list the portable power tool used for each of the following operation on site:
  •  Cutting rafters to length;
  • Cutting a mould on a door frame;
  • Cutting mortise for a mortise lock;
  • Smoothing the surface of a door.

The expected response to question 6 is as given below:
6.(a)  Causes of accident on  a worksite:
-          not wearing safety clothing;
-          poor storage of materials and equipment;      
-           not obeying safety rules and regulations;
-          insecure scaffolds and ladders;
-           inadequate clearing of site;
-           poor weather conditions;
-           improper handling of tools;
-           over – confidence. 

(b)    Safety rule to be observed when using sharp edge cutting tool:
-           do not test the sharpness of the tool with your finger;
-           do not hand over the sharp edge to another worker;
-           do not use if the cutting edge is blunt;
-           keep fingers away from cutting edge;                                 
-           never carry sharp tools in your pockets;
-           always grind off a mushroom head;
-           always cut and chisel away from yourself;
-           never use tools with loose handles;
-           always carry cutting tools with the sharp edge down.

(c)  Portable power tools used for the following operation:

(i)     Cutting rafter to length                    -     Portable circularsaw, chainsaw.
(ii)    Cutting a mould on a door frame    -     Portable router.
(iii)   Cutting mortise for a mortise lock  -     Portable drill, portable router.            
(iv)   Smoothing the surface of a door      -     Portable orbital sander.