Question

Q1: Define the Water content in terms of Geotechnical engineering [3]

Q2:The following Data Were recorded while a group did moisture content test:

		Test Number
	1	2	3
Can No.	G42	G31	G54
Mass of can, Wy (g)	17.28	18.92	16.07
Mass of can + wet soil, W2 (g)	43.52	52.19	39.43
Mass of can + dry soil, W3 (g)	39.86	47.28	36.28
Mass of moisture, W2 - W3 (g)	3.66	4.58	3.32
Mass of dry soil, W3 -W] (g)	22.55	28.28	20.08
Moisture content, w(%) =	16.2	16.0	/65

1. Determine the average Moisture content of the above soil [7]
2. What is standard procedure that was followed to get the above results?[3]
3. What are the sources of Error is such type of Experiment[2]

Answer 1

AVERAGE MOISTURE CONTENT =

w1=16.2% w2=16.0% w3=6.5%

so , average moisure content = = 12.9%

STANDARD PROCEDURE THAT IS BEING FOLLOWED -

SOURCES OF ERROR IN SUCH TYPE OF EXPERIMENT-

1. WEIGHING MACHINE IS NOT CALIBRATED CORRECTLY

2. TEMPERATURE IN OVEN IS NOT KEPT PROPERLY.

3. WEIGHT OS SOIL IS NOT BEING TAKEN CORRECTLY DUE TO HUMAN ERROR

4. SOIL IS DRIED IN THE ATMOSPHERE ITSELF DUE TO KEEPING IT IN ATMOSPHERE FOR A LONG TIME.