Construction Materials MCQ Questions and Answers
1- High amount of energy consuming building material is
(A) Burnt brick
(B) Cement
(C) Steel
(D) Aluminium
2- Which of the following compound is added to cement clinkers for the purpose of delaying the setting time?
(A) Silica
(B) Lime
(C) Gypsum
(D) Calcium chloride
3- Brick flooring is usually provided in
(A) Workshops
(B) Warehouses
(C) Bus stations
(D) All of the above
4- The four most important constituents of Portland cement are
(A) Lime, Silica, Magnesia and Soda ash
(B) Lime, Silica, Soda and Sulphur
(C) Lime, Silica, Phosphorus and Alumina
(D) Lime, Silica, Alumina and Iron Oxide
5- Bleeding of concrete is
(A) cement paste raises to surface of concrete
(B) finer particles collect in isolated pockets
(C) finer particles settle down at the bottom
(D) coarser particles gets separated
6- Which one of the following is used to test soundness of cement?
(A) Briquette
(B) Le Chatelier’s apparatus
(C) Turbidity meter
(D) Vicat’s apparatus
7- Polymer concrete is used specifically when desirable concrete is to be ______.
(A) Impermeable
(B) Used under high temperature
(C) Light weight
(D) Heavy weight
8- Strength of concrete depends upon
(A) Hardness of cement
(B) Fineness of cement
(C) Water cement ratio
(D) All of the above
9- The major cementing compound present in OPC is
(A) Tri-calcium aluminate
(B) Tetra-calcium alumino ferrite
(C) Tri-calcium silicate
(D) Di-calcium silicate
10- The following cement is used in the construction of dam
(A) quick setting
(B) sulphate resisting
(C) low heat
(D) rapid hardening
11- Smith’s Test is performed on stones to assess its ___________
(A) soluble and clayey matter
(B) insoluble matter
(C) hardness
(D) specific gravity
12- The bricks which are extensively used for basic refractories in furnaces are
(A) Magnesite bricks
(B) Fosterite bricks
(C) Chrome bricks
(D) Sillimanite bricks
13- Aerated concrete is produced by addition of
(A) sodium silicate
(B) zinc insulation
(C) copper sulphate
(D) aluminium powder
14- Which one of the following types of steels is used in the manufacture of rails?
(A) Cast steel
(B) Bessemer steel
(C) Mild steel
(D) Manganese steel
15- The correct sequence of plasticity of minerals in soil in an increasing order is
(A) Silica, kaolinite, montmorillonite, illite
(B) Kaolinite, silica, montmorillonite, illite
(C) Kaolinite, silica, illite, montmorillonite
(D) Silica, kaolinite, illite, montmorillonite
16- The main advantage of adding pozzolanas in cement is
(A) slower setting time
(B) faster setting time
(C) longer life
(D) reduced cost and permeability of concrete
17- RMC is acronym of
(A) Readily mix concrete
(B) Recently mixed concrete
(C) Rapidly mixed concrete
(D) Ready mixed concrete
18- Test carried out to determine tensile strength of concrete is called
(A) triaxial loading test
(B) compression test
(C) split test or Brazilian test
(D) Vee-Bee test
19- The fineness of cement is expressed as
(A) grade
(B) kg/m3
(C) mm
(D) m2/kg
20- Ordinary lime mortar is cured by
(A) covering it with sand
(B) exposing to high temperature
(C) water
(D) air
ANSWERS:
1-(D), 2-(C), 3-(B), 4-(D), 5-(A), 6-(B), 7-(A), 8-(C), 9-(C), 10-(C), 11-(A), 12-(A), 13-(D), 14-(D), 15-(D), 16-(D), 17-(D), 18-(C), 19-(D), 20-(D)