Concrete Technology (3150610) MCQs

MCQs of Fresh Concrete

Showing 21 to 30 out of 34 Questions
1 2 3 4
21.

Non-uniform compaction may cause the concrete

(a)

porous
(b)

homogeneous
(c)

reduced strength
(d)

all the above
Answer:

Option (d)

22.

The strength and quality of concrete, depend upon:

(a)

grading of aggregates
(b)

surface area of aggregates
(c)

shape of aggregates
(d)

all the above
Answer:

Option (d)

23.

The entrained air in concrete

(a)

increases workability
(b)

decreases workability
(c)

increases strength
(d)

neither affects workability nor strength
Answer:

Option (a)

24.

Water cement ratio is

(a)

weight of concrete to that of water
(b)

volume of concrete to that of water
(c)

weight of water to that of cement
(d)

both (a) and (b) of the above
Answer:

Option (c)

25.
Sands of zone II are
(a) coarse
(b) medium
(c) fine
(d) very fine
Answer:

Option (b)

26.
Sands of zone III are
(a) coarse
(b) medium
(c) fine
(d) very fine
Answer:

Option (c)

27.
Sands of zone IV are
(a) coarse
(b) medium
(c) fine
(d) very fine
Answer:

Option (d)

28.
The size of fine aggregates does exceed
(a) 4.75 mm
(b) 2.75 mm
(c) 0.15 mm
(d) 0.75 mm
Answer:

Option (c)

29.
Which properties are of fresh concrete?
(a) strength
(b) segregation
(c) compressive strength
(d) flexural strength
Answer:

Option (b)

30.
Which properties are of fresh concrete?
(a) segregation
(b) bleeding
(c) air entrainment
(d) all of above
Answer:

Option (d)

Showing 21 to 30 out of 34 Questions
1 2 3 4