Observation

Most candidates were able to state two properties of hardened concrete. However, few Most candidates were able to;
-Name a suitable hinge for each of the following types of door:

• flush door;
• match boarded door;
• garage metal door.
• state one function of a window sill.

 
However, some of them failed to:

• sketch the cross-section of a straight-flight stair and label the following parts:
• going;
• landing;
• tread.

• differentiate between a partition wall and a party wall.

            The expected response to question 3 is as given below:

3 (a) Sketch of the cross-section of a straight-flight stair:


(b)        Difference between a partition wall and a party wall
A partition wall is the wall which divides a building into different rooms or apartments while a party wall is the wall which separates two adjoining buildings of two different owners.

 (c)       Suitable hinges for each type of door

• Flush door: butt hinge, parliament hinge.
• Matchboarded door:  tee hinge, strap hinge; garnet hinge.
• Garage metal door: hook and band (or eye) hinge.

(d)       Functions of a window sill:

• it sheds-off water from the window;
• it provides attractive finish to the window.