building construction Paper 3 WASSCE (PC 2ND), 2018

Question 4

 

Draw to a scale of 1:20, the detailed section Y-Y of the reinforced concrete stair from ground level to the first floor slab and label the following parts:

 

  1. lower flight;
  2. upper flight;
  3. landing slab.
  4. main reinforcement bar.

Observation

 

 

Majority of them did well by:


- showing the various elements of  concrete stair ( lower flight, upper flight, landing slab);
- identifying types of steel reinforcement.

 

However, some of the candidates that attempted this questions failed to:


- dimension the sectional drawing;
- show the wall in section;
- show the floor slabs;
- draw the upper fight.

The expected response to question 4 is as given below: