Construction Materials Question Paper of 3rd Semester Civil(D) Download Previous Years Question Paper 7

S.B. Roll No. _____________

CONSTRUCTION MATERIALS

3rd Exam/Civil/5143/May’08

Duration : 4 Hrs.

Section A

1.     Fill in the blanks

a.     The chief constituents of silicon rock is _____

b.     The compressive strength of second class brick shall not be less than ____

c.      The chemical reaction between cement and  water is known as _____

d.     Hydraulic lime is used for _________

e.      Decay in timber is due to __________

State true or false:

f.       Hard wood contains acids.

g.     Turpentine oil is used as thinner for paints

h.     Cast iron contracts on coating.

i.       The lightest of all the plastics is known as polythene

j.       Fibre boards are also known as reconstructed boards.

Choose the correct one:

k.     Wired glass is used for show cases / window panes / sky lights

l.       Bitumen gets softened/ hard on heating.

m.  Mica attributes to the stone strength weakness.

n.     Deodar is soft / hard wood.

o.     Mild steel contain carbon contents 0.15% to 0.3%0.15% to 1.5%

Section –B

Note: Attempt any five questions

2.       

a.     Define coal tar and give its uses

b.     Write short note on coloured glass.

c.      Explain asbestos cement sheets.

d.     List out ten number insulating materials.

e.      Give characteristics of good varnish.

f.       Explain visual examination field test of lime

Section –C

Note: Attempt any three questions.

3.      

a.     Describe briefly geological classification of rocks.

b.     Define the following properties of rocks

                                                             i.      Hardness

                                                           ii.      Workability

4.      

a.     What is the size and function of keeping a frog in a brick.

b.     Explain functions and properties of various ingredients of bricks earth.

5.     Explain with flow diagram of wet process for manufacturing of cement

6.      

a.     Explain natural defects in timber

b.     Explain the advantages and uses of plywood