MCQ Concrete Technology ( Part 4 )- IES, RRB, GATE EXAMS MCQ

MCQ Concrete Technology ( Part 4) Questions

MCQ Concrete Technology

Question No. 1
Pick up the incorrect statement rom the following:
(A) The degree of grinding of cement, is called fineness
(B) The process of changing cement paste into hard mass, is known as setting of cement
(C) The phenomenon by virtue of which cement does not allow transmission of sound, is known as soundness of cement
(D) The heat generated during chemical reaction of cement with water, is known as heat of hydration

Question No. 2
Concrete gains strength due to
(A) Chemical reaction of cement with sand and coarse aggregates
(B) Evaporation of water from concrete
(C) Hydration of cement
(D) All the above

Question No. 3
To determine the modulus of rupture, the size of test specimen used is
(A) 150 × 150 × 500 mm
(B) 100 × 100 × 700 mm
(C) 150 × 150 × 700 mm
(D) 100 × 100 × 500 mm

Question No. 4
Tricalcium aluminate (C3A)
(A) Reacts fast with water
(B) Generates less heat of hydration
(C) Causes initial setting and early strength of cement
(D) Does not contribute to develop ultimate strength

Question No. 5
If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the
grade of concrete, is
(A) M 100
(B) M 150
(C) M 200
(D) M 250

Question No. 6
Admixtures which cause early setting and hardening of concrete are called
(A) Workability admixtures
(B) Accelerators
(C) Retarders
(D) Air entraining agents

Question No. 7
Pick up the correct statement from the following:
(A) Sand stones may be divided into calcareous, siliceous and ferruginous sand stones
(B) Concrete using sand stones, cracks due to excessive shrinkage
(C) Broken bricks produce a concrete having good fire resisting qualities
(D) All the above

Question No. 8
Pick up the incorrect statement from the following:
(A) Admixtures accelerate hydration
(B) Admixtures make concrete water proof
(C) Admixtures make concrete acid proof
(D) Admixtures give high strength

Question No. 9
For a reinforced concrete section, the shape of shear stress diagram is
(A) Wholly parabolic
(B) Wholly rectangular
(C) Parabolic above neutral axis and rectangular below neutral axis
(D) Rectangular above neutral axis and parabolic below neutral axis

Question No. 10
Allowable shear strength of concrete, depends upon
(A) Shear strength
(B) Tensile strength
(C) Compressive strength
(D) None of these

MCQ Concrete Technology Answers ( Part 4)

Question No. 1: C
Question No. 2: C
Question No. 3: C
Question No. 4: B
Question No. 5: A
Question No. 6: B
Question No. 7: D
Question No. 8: A
Question No. 9: C
Question No. 10:A

Read More: MCQ Concrete Technology Answers ( Part 1)

Read More: MCQ Concrete Technology Answers ( Part 2)

Read More: MCQ Concrete Technology Answers ( Part 3)

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