# Proctor Compaction Test – MCQ

Proctor Compaction Test – MCQ

1. Who was the first person to demonstrate the relation between the water content and dry density of the soil

a) Proctor
b) William Albrecht
c) Charles Darwin
d) Selman Waksman

a) Proctor

2. The capacity of the mould used in the Standard Proctor Compaction Test is

a) 1/20 cft
b) 1/30 cft
c) 1/36 cft
d) 1/42 cft

b) 1/30 cft

3. The volume of mould in standard proctor test is

a) 1.415 Liter
b) 0.944 Liter
d) 0.787 Liter
e) 0.674 Liter

b) 0.944 Liter

[Note – Question number (2) and (3) both are the same, the only difference is their unit. In the second question, it is in ‘cft’, and in 3 question it is in ‘Liter’.]

4. Dimensions of mould used in standard proctor compaction test is

a) Dia 4 inches, and height 4.6 inches
b) Dia 4.6 inches, and height 4 inches
c) Dia 4.3 inches, and height 4.6 inches
d) Dia 4 inches, and height 4.3 inches

5. How many blows of rammer are recommended for each layer in case of a standard proctor test?

a) 15
b) 25
c) 27
d) 35

b) 25

6. The weight of the rammer used in the standard proctor compaction test is

a) 1.5 lb
b) 2.5 lb
c) 3.5 lb
d) 5.5 lb

d) 5.5 lb

7. In standard proctor test, the rammer is allowed to fall under gravity from a height of

a) 8 inches
b) 12 inches
c) 14 inches
d) 18 inches

b) 12 inches

8. The weight of the rammer used in case of modified proctor test is

a) 5.5 lb
b) 6.6 lb
c) 10 lb
d) 12 lb

d) 12 lb

9. In modified proctor test, the rammer is allowed to fall under gravity from a height of

a) 8 inches
b) 12 inches
c) 14 inches
d) 18 inches