(A) cambium layer
(B) annular rings
(C) medullary rays
(D) heart wood

(A) 5%
(B) 15%
(C) 25%
(D) 35%

(A) log
(B) batten
(C) plank
(D) baulk

(A) 0°
(B) 30°
(C) 45°
(D) 90°

(A) granite
(B) sand stone
(C) lime stone
(D) quartzite

(A) basalt and marble are the only metamorphic rocks
(B) there is no sedimentary rock
(C) granite is the only igneous rock
(D) quartz and mica are minerals

(A) quarrying of stones
(B) blasting of stones
(C) seasoning of stones
(D) dressing of stones

(A) it can not be polished
(B) it is not a fire proof material
(C) it is costly
(D) it has less crushing strength

(A) hardness test
(B) work ability test
(C) weight test
(D) toughness test

(A) marble
(B) quartzite
(C) slate
(D) lime stone