gce 2022 intermediate level survey soil mechanics and materials 2

gce 2022 intermediate level survey soil mechanics and materials 2

gce 2022 intermediate level survey soil mechanics and materials 2

SECTION A: MATERIALS (Answer any TWO Questions)
QUESTION ONE: (25 marks)

a ) Define admixture and name four types that are used in civil engineering.
b) List and define four factors that affect workability of freshly mixed concrete.
c) Define igneous rocks and give two examples.
d) What is the principal raw material used in the manufacturing of ordinary Portland cement?
e) Elaborate the wet process used in the manufacturing of ordinary Portland cement.
QUESTION TWO: (25marks)
Your village development association (VDA) has decided to modernise the palace museum by using wood
in constructing the library section of this museum. You were asked to advice the VDA by answering the
following questions:
a) Name two types of wood and give two characteristics of each.
b) Define the following parts of a cut tree.
– i ) pith
ii) heartwood
iii) sap wood
iv) medullary rays
c) Give two methods of sawing timber.
d) Define laminated wood and give one advantage and one dis-advantage of this wood.
e) Define the term “warping” in timber technology.

QUESTION THREE: (25marks)
a) List and define two properties of harden concrete.
b) What is the influence of water / cement ratio to the strength of concrete?
c) Give four commercial sizes of timber sold in the Cameroonian market.
d) What is the name given to the binder used in flexible pavement? Give two examples.
e) Match the following joints (Dutt, Dovetail, Mortice and tenon, Lapped and Finger)
to the diagrams given in fig 1.