Concrete Technology (3150610) MCQs

MCQs of Mix Design of Concrete

Showing 1 to 10 out of 17 Questions
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1.

if the trial mix gives a higher 28 days compressive strength value than the design value, then for the next trial 

(a)

cement content is increased
(b)

water content is reduced 
(c)

w/c ratio is increased
(d)

proportion of sand is increased 
Answer:

Option (c)

2.

the nominal mix corresponding to M20 grade concrete is 

(a)

1:2:4
(b)

1:2:3
(c)

1:1.5:3
(d)

1:1:2
Answer:

Option (c)

3.

the nominal mix corresponding to M15 grade concrete is 

(a)

1:2:4
(b)

1:2:3
(c)

1:1.5:3
(d)

1:1:2
Answer:

Option (a)

4.

the nominal mix corresponding to M25 grade concrete is 

(a)

1:2:4
(b)

1:2:3
(c)

1:1.5:3
(d)

1:1:2
Answer:

Option (d)

5.

the nominal mix corresponding to M10 grade concrete is 

(a)

1:3:6
(b)

1:2:4
(c)

1:1.5:3
(d)

1:1:2
Answer:

Option (a)

6.

the grade of concrete corresponding to nominal mix proportions of 1:3:6

(a)

M10
(b)

M15
(c)

M20
(d)

M25
Answer:

Option (a)

7.

the grade of concrete corresponding to nominal mix proportions of 1:2:4

(a)

M10
(b)

M15
(c)

M20
(d)

M25
Answer:

Option (b)

8.

the grade of concrete corresponding to nominal mix proportions of 1:1.5:3

(a)

M10
(b)

M15
(c)

M20
(d)

M25
Answer:

Option (c)

9.

the grade of concrete corresponding to nominal mix proportions of 1:1:2

(a)

M10
(b)

M15
(c)

M20
(d)

M25
Answer:

Option (d)

10.

the total number of grades of ordinary concrete stipulated in IS456:2000 are 

(a)

3
(b)

5
(c)

7
(d)

10
Answer:

Option (a)

Showing 1 to 10 out of 17 Questions
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