MCQ Concrete Technology ( Part 3)- RRB Exams, Gate, IES etc.

MCQ Concrete Technology ( Part 3)- RRB Exams, Gate, IES etc.

MCQ Concrete Technology

Question No. 1
Pick up the correct statement from the following:
(A) The maximum size of a coarse aggregate, is 75 mm and minimum 4.75 mm
(B) The maximum size of the fine aggregate, is 4.75 mm and minimum 0.075 mm
(C) The material having particles of size varying from 0.06 mm to 0.002 mm, is known as silt
(D) All the above

Question No. 2
In a counterfort retaining wall, the main reinforcement is provided on the
(i) Bottom face in front counterfort
(ii) Inclined face in front counterfort
(iii) Bottom face in back counterfort
(iv) Inclined face in back counterfort
The correct answer is
(A) (i) and (ii),
(B) (ii) and (iii)
(C) (i) and (iv)
(D) (iii) and (iv)

Question No. 3
For construction of structures in sea water, the cement generally preferred to, is
(A) Portland-pozzolana cement
(B) Quick setting cement
(C) Low heat Portland cement
(D) Rapid hardening cement

Question No. 4
Curing of pavements, floors, roofs and slabs, is done by
(A) Membrane method
(B) Ponding method
(C) Covering surface with bags
(D) Sprinkling water method

Question No. 5
The centroid of compressive force, from the extreme compression fiber, in limit state design lies at
a distance of
(A) 0.367 xu

(B) 0.416 xu
(C) 0.446 xu
(D) 0.573 xu Where xu is the depth of neutral axis at the limit state of collapse

Question No. 6
Pick up the correct statement from the following:
(A) Construction joints are necessarily planned for their locations
(B) Expansion joints are provided to accommodate thermal expansion
(C) Construction joints are provided to control shrinkage cracks
(D) All the above

Question No. 7
The bulk density of aggregates, depends upon
(A) Shape
(B) Grading
(C) Compaction
(D) All the above

Question No. 8
In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively
(A) Compressive and tensile
(B) Tensile and compressive
(C) Both compressive
(D) Both tensile

Question No. 9
The main object of compaction of concrete, is:
(A) To eliminate air holes
(B) To achieve maximum density
(C) To provide intimate contact between the concrete and embedded materials
(D) All the above

Question No. 10
Which of the following has high tensile strength?
(A) Plain hot rolled wires
(B) Cold drawn wires
(C) Heat treated rolled wires
(D) All have same tensile strength

MCQ Concrete Technology (Part 3) Answers

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

Read More: MCQ Concrete Technology (Part 1)

Read More: MCQ Concrete Technology ( Part 2)

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