A. setting time of cement
B. soundness of cement
C. tensile strength of cement
D. compressive strength of cement
A. cast iron
B. wrought iron
C. mild steel
D. high carbon steel
A. less than one year
B. 1 to 5 years
C. 5 to 10 years
D. more than 10 years
A. granite
B. sand stone
C. lime stone
D. quartzite
A. cambium layer
B. annular rings
C. medullary rays
D. heart wood
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true
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