65.

66.

67.

68.

69.

70.

71.

72.

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Why are bricks soaked in water before using in brick masonry ?
A) For reducing efflorescence

B) For preventing depletion of moisture from mortar

C) For removing dust and dirt

D) For reducing air voids

The main objective of compaction of concrete is

A) To provide intimate contact between the concrete and embedded materials
B) To remove the air voids

C) To increase the density of concrete

D) All the above

The diameter of longitudinal bars of a column should never be less than
A) 16mm B) 12mm
७) 10mm D) 20 mm

In M20 concrete mix, numeric 20 represents the
A) 7 days compressive strength B) 28 days compressive strength
C) 14 days compressive strength D) 7 days tensile strength

Which Indian standard code is used for ductile detailing of reinforced concrete
structures subjected to seismic forces ?

A) IS 456 B) IS 800
C) IS 1893 D) IS 13920

As per IS 399 (1963) : Classification of Commercial Timbers and their Zonal
Distribution, X, Y and Z classification of timber is based on

A) Availability B) Durability
C) Treatability D) All the above

Which of the following is the example of shallow foundation ?
A) Mat foundation B) Pile foundation
C) Pier foundation D) All the above

lron with least carbon content is
A) Wrought iron B) Cast iron
C) Mild steel D) Direct reduced iron

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