Standard & Modified Proctor Test

The air voids line contains

• constant percentage air voids

• water voids

• varying percentage air voids

• specific gravity of solids

The zero air voids line is also known as

• unit weight line

• density line

• saturation line

• specific gravity line

In Modified Proctor test the number of layers of the soil is compacted is

• 2

• 3

• 5

• 1

The weight of hammer in Modified proctor test is

• 4.54kg

• 5kg

• 7kg

• 12kg

The free fall height of rammer in Modified Proctor test is __________ inches.

• 11

• 13

• 18

• 34

How many blows are given to each layer of soil in the mold?

• 15

• 20

• 25

• 30