Building Material MCQ

 Building Material MCQ PART-4




Q.NO  151) The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick ?
(A)  20 %
(B)  15 %
(C)  10 %
(D) None of these




Answer: Option A (20 %)

 Q.NO  152) Pug mill is used for ?
(A) Preparation of clay
(B) Moulding of clay
(C) Drying of bricks
(D) Burning of bricks




 Answer: Option A (Preparation of clay)

 Q.NO  153) Pick up the synthetic resin from the following:
(A) Urea resin
(B) Phenolic resin
(C) Resorcinol resin
(D) All of these




 Answer: Option D (All of these)



 Q.NO  154) Addition of pozzolana to ordinary Portland cement increases ?
(A) Bleeding
(B) Shrinkage
(C) Permeability
(D) Heat of hydration



Answer: Option B ( Shrinkage)


 Q.NO  155) Plastics are compounds of carbon with element ?
(A) Hydrogen
(B) Nitrogen
(C) Oxygen
(D) All of these



Answer: Option D (All of these)

 Q.NO  156) Paints with white lead base are suitable for painting of ?
(A) Wood work
(B) Iron work
(C) Both wood work and iron work
(D) None of the above



 Answer: Option A (Wood work)

 Q.NO  157) For a good building stone, its specific gravity should the greater than ?
(A) 1.5
(B)  1.7
(C)  2.2
(D) 2.7



Answer: Option D ( 2.7)



 Q.NO  158) Sandstone is a ?
(i) Sedimentary rock
(ii) Aqueous rock
(iii) Siliceous rock The correct answer is
(A) Only (i)
(B) Both (i) and (ii)
(C) Both (i) and (iii)
(D) All (i), (ii) and (iii)





Answer: Option D ( All (i), (ii) and (iii))

 Q.NO  159) The rocks having alumina or clay as their major constituents are known as ?
(A) Siliceous rocks
(B) Argillaceous rocks
(C) Calcareous rocks
(D) Sedimentary rocks




 Answer: Option B (Argillaceous rocks)

 Q.NO  160) The practical limit of moisture content achieved in air drying of timber is ?
(A) 5 %
(B) 15 %
(C) 25 %
(D) 35  %



Answer: Option B ( 15 %)



 Q.NO  161) Glazing of clay products, is done ?
(A) To improve their appearance
(B) To protect them from atmospheric effect
(C) To protect them from corrosive action
(D) All the above




Answer: Option D (All the above)




 Building Materials latest onliner questions

 Q.NO  162) Study the following statements ?
(i) Hydraulic lime is suitable for white washing,
(ii) Fat lime is suitable for whitewashing,
(iii) Hydraulic lime is suitable for making mortar,
(iv) Fat lime is suitable for making mortar.

The correct answer is
(A) (i) and (iv)
(B) (ii) and (iii)
(C) (i) and (ii)
(D) (iii) and (iv)




Answer: Option B ((ii) and (iii))


 Q.NO  163) The yield strength and tensile strength of low carbon steel may be improved by the addition of ?
(A) Manganese
(B) Chromium
(C) Nickel
(D) Vanadium




Answer: Option D (Vanadium)


 Q.NO  164) Three basic raw materials which are needed in large quantities for production of steel are ?
(A) Iron ore, coal and sulphur
(B) Iron ore, carbon and sulphur
(C) Iron ore, coal and lime stone
(D) Iron ore, carbon and lime stone





 Answer: Option C ( Iron ore, coal and lime stone)



 Q.NO  165) To give a brilliant finish, the type of varnish used, is  ?
(A) Water varnish
(B) Spirit varnish
(C) Turpentine varnish
(D) Oil varnish




 Answer: Option B (Spirit varnish)


 Q.NO  166) Which of the following should be used for hearting of thicker walls?
(A) Headers
(B) Stretchers
(C) Brick bats
(D) Queen closer




 Answer: Option A (Headers)


 Q.NO  167 ) Asbestos ?
(A) Is an excellent insulator for heat and electricity
(B) Is fire-proof and acid proof
(C) Has sp. gravity equal to 3.10
(D) All the above






Answer: Option D (All the above)


 Q.NO  168) A heavy stone is suitable for ?
(A) Arches
(B) Rubble masonry
(C) Roads
(D) Retaining walls



Answer: Option D (Retaining walls)



 Q.NO  169)
Pick up the correct statement from the following:
(A) Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon
(B) The edges of a finished wrought iron are rough due to red shortage
(C) Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)
(D) All the above







Answer: Option D (All the above)


 Q.NO  170 ) The percentage of alumina in a good brick earth lies between ?
(A) 5 to 10 %
(B)  20 to 30 %
(C)  50 to 60 %
(D) 70 to 80 %







Answer: Option B (20 to 30 %)


 Q.NO  171) Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as ?
(A) Bessemer pig
(B) Grey or foundry pig
(C) White or forge pig
(D) Mottled pig



Answer: Option A (Bessemer pig)

 Q.NO  172) Le-Chatelier's device is used for determining the ?
(A) Setting time of cement
(B) Soundness of cement
(C) Tensile strength of cement
(D) Compressive strength of cement




Answer: Option B ( Soundness of cement)


 Q.NO  173) Red short iron cracks when bent due to the presence of ?

(A) Sulphur
(B) Carbon
(C) Phosphorus
(D) Silicon




 Answer: Option A (Sulphur)

 Q.NO  174 ) Percentage of carbon content in mild steel is  ?
(A) Less than 0.25
(B) Between 0.25 and 0.7
(C) Between 0.7 and 1.5
(D) Greater than 1.5



 Answer: Option A (Less than 0.25)


Building Materials ssc je questions

 Q.NO  175 ) The method of addition polymerization is used for obtaining:
(A) Polystyrene
(B) Polypropylene
(C) Polyvinylchloride
(D) All of these





Answer: Option D (All of these)

 Q.NO  176) Which of the following metamorphic rocks has the most weather resisting characteristics?
(A) Marble
(B) Quartzite
(C) Slate
(D) Lime stone





 Answer: Option B (Quartzite)



 Q.NO  177) To retard the initial setting time of cement, the compound responsible, is ?
(A) Tri-calcium silicate
(B) Gypsum
(C) Di-calcium silicate
(D) Tri-calcium aluminate





 Answer: Option B (Gypsum)


 Q.NO  178) Seasoning of timber is done for  ?
(A) Increasing moisture content
(B) Decreasing moisture content
(C) Increasing strength of timber
(D) None to these



 Answer: Option B ( Decreasing moisture content)


 Q.NO  179) The steel used for the manufacture of rails, is ?
(A) Bessemer steel
(B) Mild steel
(C) Cast steel
(D) Stainless steel




 Answer: Option A (Bessemer steel)


 Q.NO  180) Durability of building stone is affected by its  ?
(A) Chemical composition
(B) Texture
(C) Resistance to atmosphere
(D) All the above


Answer: Option D (All the above)


 Q.NO  181) Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following:
(A) Absence of sun light
(B) Dampness
(C) Presence of sap
(D) All the above



 Answer: Option D (All the above)


 Q.NO  182 ) Crushing strength of a first class brick should not be less than ?
(A) 3.5 N/mm²
(B) 7.0 N/mm²
(C) 10.5 N/mm²
(D) 14.0 N/mm²




Answer: Option C (10.5 N/mm²)



 Q.NO  183) Pick up the correct statement from the following:
(A) Rust is due to formation of oxides
(B) Cast iron oxidises less
(C) Steel oxidises most
(D) All the above



 Answer: Option D (All the above)

 Q.NO 184) The main constituent of cement which is responsible for initial setting of cement is ?
(A) Di-calcium silicate
(B) Tri-calcium silicate
(C) Tri-calcium aluminate
(D) All of the above



 Answer: Option C (Tri-calcium aluminate)



 Q.NO  185) Pick up the correct statement from the following:
(A) The low voltage porcelain is prepared by wet process
(B) The high voltage porcelain is prepared by dry process
(C) The low voltage porcelain is prepared by dry process
(D) None of the above





 Answer: Option C (The low voltage porcelain is prepared by dry process)



 Q.NO  186) In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as  ?
(A) English bond
(B) Double Flemish bond
(C) Zigzag bond
(D) Single Flemish bond




Answer: Option B (Double Flemish bond)


 Q.NO  187) In stone masonry, if stones are so placed that their layers are parallel to the direction of load, they ?
(A) Split easily
(B) Are affected by moisture
(C) Both (A) and (B)
(D) None of these







Answer: Option C ( Both (A) and (B))



 Q.NO  188) Granite is not suitable for ordinary building purpose because ?
(A) It cannot be polished
(B) It is not a fire proof material
(C) It is costly
(D) It has less crushing strength




 Answer: Option C ( It is costly)


 Q.NO  189 ) Lacquer paints ?
(A) Are generally applied on structural steel
(B) Are less durable as compared to enamel paints
(C) Consist of resin and nitro-cellulose
(D) All the above





Answer: Option D (All the above)

 Q.NO  190) Glazing is used to make earthenware ?
(A) Hard
(B) Soft
(C) Porous
(D) Impervious





 Answer: Option D (Impervious)



 Q.NO  191) In the cement the compound quickest to react with water, is ?
(A) Tri-calcium aluminate
(B) Tetra-calcium alumino-ferrite
(C) Tri-calcium silicate
(D) Di-calcium silicate





Answer: Option A ( Tri-calcium aluminate)


 Q.NO  192) Which of the following gradients exerts maximum influence on properties of steel?
(A) Iron
(B) Carbon
(C) Manganese
(D) Sulphur





Answer: Option B ( Carbon)


 Q.NO  193) Stainless steel contains ?
(A) 18% of chromium and 8% nickel
(B) 8% of chromium and 18% of nickel
(C) 12% of chromium and 36% of nickel
(D) 36% of chromium and 12% of nickel







 Answer: Option A ( 18% of chromium and 8% nickel)



 Q.NO  194) Excess of silica in brick earth results in ?
(A) Cracking and warping of bricks
(B) Loss of cohesion
(C) Enhancing the impermeability of bricks
(D) None of the above





Answer: Option B (Loss of cohesion)


 Building Materials best Questions

 Q.NO  195) Which one of the following is acid resistant asbestos?
(A) Actinolite asbestos
(B) Amosite asbestos
(C) Anthophylite asbestos
(D) All the above






 Answer: Option D (All the above)

 Q.NO  196) The slump recommended for mass concrete is about? 
(A) 25 mm to 50 mm
(B) 50 mm to 100 mm
(C) 100 mm to 125 mm
(D) 125 mm to 150 mm






Answer: Option A ( 25 mm to 50 mm)



 Q.NO  197) For preparing porcelains, the clay should be ?
(A) Sufficiently pure
(B) Of high degree of tenacity
(C) Of good plasticity
(D) All the above






 Answer: Option D (All the above)


 Q.NO  198) For melting one tonne of cast iron ?
(A) 700 m3 air is required
(B) 20 kg limestone is required
(C) One quintal coke is required
(D) All the above






 Answer: Option D (All the above)


 Q.NO  199) Pick up the correct statement regarding low heat cement from the following?
(A) It possesses less compressive strength
(B) Its initial setting time is about one hour
(C) Its final setting time is about 10 hours
(D) All the above






 Answer: Option D (All the above)


 Q.NO  200) Quick lime (or caustic lime) ?
(A) Is obtained by the calcination of pure lime stone
(B) Has great affinity to moisture
(C) Is amorphous
(D) All the above






 Answer: Option D (All the above)












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