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Concrete Technology MCQ

Civil engineering MCQ and concrete technology MCQ for competitive exam.

Q. 1 Permissible compressive strength of M 200 concrete grade is

A. 200 kg/cm2

B. 250 kg/cm2

C. 100 kg/cm2

D. 150 kg/cm2

A. 200 kg/cm2

Q. 2 The minimum diameter of longitudinal bars in a column is

A. 12 mm B. 6 mm C. 8 mm D. 16 mm
A. 12 mm

Q. 3 The high strength of rapid hardening cement at early stage, is due to its

A. Burning at high temperature B. Increased lime cement C. Finer grinding D. Higher content of tricalcium
B. Increased lime cement

Q. 4 Sand requiring a high water cement ratio, belongs to

A. Zone II B. Zone III C. Zone I D. Zone IV
C. Zone I

Q. 5 Minimum grade of concrete to be used in reinforced concrete as per IS: 4561978 is

A. M 20

B. M 10

C. M 15

D. M 25

C. M 15

Q. 6 While compacting the concrete by a mechanical vibrator, the slump should not exceed

A. 5.0 cm B. 7.5 cm C. 2.5 cm D. 10 cm
A. 5.0 cm

Q. 7 Non-uniform compaction may cause the concrete

A. Non-homogeneous B. Reduced strength C. Porous D. All the above
D. All the above

Q. 8 Modulus of rupture of concrete is a measure of

A. Direct tensile strength

B. Compressive strength

C. Flexural tensile strength D. Split tensile strength
C. Flexural tensile strength

Q. 9 M10 grade of concrete approximates

A. 1 : 2 : 4 mix B. 1 : 1.5 : 3 mix C. 1 : 3 : 6 mix D. 1 : 1 : 2 mix
C. 1 : 3 : 6 mix

Q. 10 Higher workability of concrete is required if the structure is

A. Thin and heavily reinforced B. Thick and heavily reinforced C. Made with cement concrete D. Thick and reinforced
B. Thick and heavily reinforced

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