Building Construction Paper 2,Nov/Dec. 2014

Questions:		1	2	3	4	5		Main

General Comments
Weakness/Remedies
Strength

Question 4
(a) Sketch a two-panel door and label the following parts: panel; middle rail; stile; top rail. (b) Use a sketch to illustrate a method of preventing the uplift of a roof by strong winds. (c) (i) State two measures for preventing steel reinforcement bars in concrete floor slabs from pulling out. Sketch to illustrate each of the measures stated in 4 (c) (i).
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OBSERVATION
Most candidates were able to: sketch a two-panel door and label the parts; use a sketch to illustrate a method of preventing the uplift of a roof by strong wind; state two measures for preventing steel reinforcement bars in concrete floor slabs from pulling out; illustrate the measures for preventing steel reinforcement bars in concrete. The expected response to question 4 is as given below: 4(a) (b) (c) (i) Measures for preventing steel reinforcement bars in concrete floor slabs from pulling out are: (1) Forming hooks in the steel bars; (2) Using deformed bars in the concrete; (3) Bending the ends of the bars; (4) Using twisted bars in the concrete. (ii)