a) True
b) False
Answer: a
Explanation: In pycnometer method, the water content is calculated from,
\(w=[(\frac{M_2-M_1}{M_3-M_4})*(\frac{G-1}{G})- 1]× 100\)
Where, M1=Empty mass of pycnometer with cap
M2= mass of pycnometer + 200g to 400g of soil sample
M3= mass of pycnometer +soil sample + water till hole of conical cap
M4= mass of pycnometer + water till hole of conical cap
G=Specific gravity.
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