Civil engineering MCQ'S

For design purpose, the weight of RCC is taken as
(a) 2200kg/m3
(c) 2400kg/m3
(b) 2300kg/m3
(d)2500kg/m3
The weight of reinforced concrete, is generally taken as
A. 2200 kg/m3
B. 2300 kg/m3
C. 2400 kg/m3
D. 2500 kg/m3

based on its dry weight a freshly felled tree may contain water
a)25% b)50
c)75 d) 100