Category: Building Materials and Construction

A. 1/2
B. 1
C. 2
D. 1/4

A. innermost annular rings around the pith
B. portion of timber between heartwood and cambium layer
C. thin layers below the bark
D. thin fibre which extends from the pith outwards and holds the annular rings together

A. 160N/mm2
B. 260N/mm2
C. 420 N/mm2
D. 520 N/mm2

A. 50 MPa
B. 100 MPa
C. 150 MPa
D. 200 MPa

A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. all of the above

A. cast iron
B. wrought iron
C. mild steel
D. high carbon steel

A. to impart plasticity
B. to make the brick durable
C. to prevent shrinkage
D. to make the brick impermeable

A. brick laid with its length parallel to the face or direction of wall
B. brick laid with its breadth parallel to the face or direction of wall
C. brick having the same length and depth as the other bricks but half the breadth
D. brick with half the width at one end and full width at the other

A. alumina
B. silica
C. iron
D. magnesia

i. sedimentary rock
ii. aqueous rock
iii. silicious rock

The correct answer is:
A. only (i)
B. both (i) and (ii)
C. both (i) and (iii)
D. all (i), (ii) and (iii)