waecE-LEARNING
Building Construction Paper 2,Nov/Dec. 2014  
Questions:   1 2 3 4 5   Main
General Comments
Weakness/Remedies
Strength




Question 2

(a)       State two differences between wood single and clay tile.

(b)       State two advantages of wood single over clay tile when used as roof covering material.

 

 

(c)        Sketch a straight flight timber staircase of six steps and label the following parts:
           

  1. tread;
  2. rounded nosing;
  3. string;
  4. riser;
  5. landing;
  6. newel post.

(d)       State two stages involved in preparing the surface of a sandcrete block wall to received a render.

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OBSERVATION

Most candidates were able to:

-           state the differences between wood single and clay tile.
-           state advantages of wood single over clay tile when used as roof covering material.

However, majority of the candidates were unable to:

-           label the parts of a straight flight correctly.

-           state stages involved in preparing the surface of a sandcrete blockwall to received a render.

The expected response to question 2 is as given below:

2 (a)    Difference between wood single and clay tile

  1. wood single is a thin slab of wood;
  2. clay tile is a burnt sheet of clay material.

 

(b)       Advantages of wood single and clay tile:

            (1)       it is tougher and more durable;
            (2)       lighter in weight.

 

 

(c)

(d)       Stages involved in preparing the surface of block wall to receive a render:

  1. The wall surface should be well keyed;
  2. Should be cleaned of all loose dirt;
  3. The wall surfaces should be damped to avoid suction;
  4. The render should not be of a rich cement and sand mix (to avoid shrinkage and cracking);

 

    • The sand should be of good quality, clean and well graded.

     

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