Building Material MCQ

 Building Material MCQ PART-9



401) Lime concrete is generally used for ?

(A) Wall foundations
(B) Flooring at ground level
(C) Both (A) and (B)
(D) Neither (A) nor (B)





Answer: Option B (Flooring at ground level)



402) Bituminous fells are used for ?
(A) Covering A.C. sheets
(B) Covering sloping roofs
(C) D.P.C.
(D) None to these





 Answer: Option A (Covering A.C. sheets)


403Quick setting cement is produced by adding? 
(A) Less amount of gypsum in very fine powdered form
(B) More amount of gypsum in very fine powdered form
(C) Aluminium sulphate in very fine powdered form
(D) Pozzolana in very fine powdered form







Answer: Option C (Aluminium sulphate in very fine powdered form)



404) Pick up the correct statement from the following
(A) The substance which consists of one primary chemical, is known as monomer
(B) The polymer consists of thousands of monomers joined together
(C) The polymer molecule is called macro-molecule
(D) All the above





Answer: Option D (All the above)

405) The normal curing period for lime mortar, is:
(A) 1 day
(B) 3 days
(C) 7 days
(D) 10 days






Answer: Option C (7 days)


406) German silver is an alloy of
(A) Zinc, lead and nickel
(B) Silver, gold and lead
(C) Copper, nickel and zinc
(D) Copper, brass and zinc






 Answer: Option C (Copper, nickel and zinc)

407) For the manufacture of stainless steel, steel is mixed with
(A) Chromium
(B) Nickel
(C) Tungsten
(D) None of these





Answer: Option A (Chromium)



408) The presence of original rounded surface on the manufactured piece of timber, is called?
(A) Wane
(B) Torn grain
(C) Diagonal grain
(D) Chipmark



Answer: Option A ( Wane)

409) In paints, the pigment is responsible for ?
(A) Durability
(B) Colour
(C) Smoothness
(D) Glassy face






 Answer: Option B (Colour)

410) The operation of removal of impurities or clay adhering to iron ores, is known as?
(A) Dressing
(B) Calcination
(C) Roasting
(D) Smelting






Answer: Option A (Dressing)


411) Dry rot?
(A) Cracks the timber
(B) Reduces the strength of timber
(C) Reduces the timber to powder
(D) Spoils the appearance of timber






 Answer: Option C (Reduces the timber to powder)


412) Pozzolana (or surkhi) is used in lime
(A) To impart hydraulicity
(B) To prevent shrinkage
(C) To decrease the cost of construction
(D) To decrease the setting time






Answer: Option A (To impart hydraulicity)



413) The size of modular bricks, is
(A) 10 × 10 × 9 cm
(B) 19 × 9 × 9 cm
(C) 22.5 × 10 × 8.5 cm
(D) 22.5 × 8.0 × 9 cm






Answer: Option B (19 × 9 × 9 cm)


414) Plywood is obtained by gluing wooden sheets at ?
(A) 100 to 150 N/cm2
 (B) 100 to 130°C
(C) Both (A) and (B)
(D) Neither (A) nor (B)






Answer: Option C (Both (A) and (B))



415) The low voltage porcelain is mainly used for
(A) Switch block
(B) Insulating tubes
(C) Lamp sockets
(D) All of these






 Answer: Option D (All of these)


416)The initial setting time of hydraulic lime, is
(A) 30 minutes
(B) 60 minutes
(C) 90 minutes
(D) 120 minutes






 Answer: Option D (120 minutes)

 Q.NO  417 PVC stands for
(A) Plastic very compact
(B) Polythene vinyl chloride
(C) Polythene vinyl carbon
(D) Polythene vanadium carbide







 Answer: Option B (Polythene vinyl chloride)



418) Cement paints usually ?
(A) Contain hydrated lime
(B) Contain 5% to 10% colour pigments
(C) Contain 5% sodium chloride
(D) All the above





Answer: Option D (All the above)




419)The kiln which may work throughout the year, is
(A) Clamp
(B) Bull's kiln
(C) Hoffman's kiln
(D) None of these






 Answer: Option C (Hoffman's kiln)




 Building Materials mcq

420) The main ingredient of a good quality brick earth is?
(A) Magnesia
(B) Lime
(C) Silica
(D) Alumina







 Answer: Option C ( Silica)


421) In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is?
(A) Right angles
(B)  45°
(C)  60°
(D) Parallel





 Answer: Option A (Right angles)



422) The most durable varnish is
(A) Water varnish
(B) Spirit varnish
(C) Turpentine varnish
(D) Oil varnish





Answer: Option D (Oil varnish)

423) Softer variety of steel may be obtained by ?
(A) Cementation process
(B) Crucible process
(C) Bessemer process
(D) Open hearth process







 Answer: Option C (Bessemer process)



424) Bitumen emulsion is ?
(A) A liquid containing bitumen in suspension
(B) A paint
(C) Used as anti-corrosive paint
(D) All the above







 Answer: Option D (All the above)


425)Plastic bitumen is generally used for ?
(A) Road pavements
(B) Expansion joints
(C) Crack fillings
(D) None to these








 Answer: Option C (Crack fillings)



 426)Asbestos is? 
(A) Corrugated sheet used for roofing
(B) An incombustible fire proof material
(C) An organic substance
(D) All the above







 Answer: Option D (All the above)

427) The rocks which are formed due to pouring of magma at the earth's surface are called ?
(A) Plutonic rocks
(B) Hypabyssal rocks
(C) Volcanic rocks
(D) Igneous rocks







Answer: Option C (Volcanic rocks)



 428) Invar contains
(A) 12% of nickel
(B) 24% of nickel
(C) 30% to nickel
(D) 36% of nickel






Answer: Option D ( 36% of nickel)

 429) Distemper is
(A) A paint consisting of powdered chalk, pigments and water
(B) A water proofing agent
(C) A paint consisting of coloured cement and water
(D) A drying agent







Answer: Option A (A paint consisting of powdered chalk, pigments and water)

430) The compound of Portland cement which reacts immediately with water and also sets first is
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite






 Answer: Option C (Tri-calcium aluminate)

431) In arches, stratified stones are placed so that their planes are
(A) Parallel
(B) Perpendicular
(C) Radial
(D) None of these








Answer: Option C (Radial)





432) The fire clay contains pure ?
(A) Lime
(B) Oxide of iron
(C) Hydrated aluminium silicate
(D) Magnesium







Answer: Option C (Hydrated aluminium silicate)

 Q.NO  433
Pick up the correct characteristic of Pyroxene from the following:
(A) It forms octagonal crystals
(B) It converts to chlorine by hydration
(C) Its density is 2.3 to 3.6 g/cm2
(D) All the above









Answer: Option D (All the above)




434)The base material for distemper  is ?
(A) Chalk
(B) Lime
(C) Lime putty
(D) Cement wash







 Answer: Option A (Chalk)

 Q.NO  435
Slacking of lime is affected by

(A) Keeping it exposed to air
(B) Immersing the lime in water
(C) Crushing the lime lumps
(D) None of these







 Answer: Option B (Immersing the lime in water)

436) Stones used for the construction of retaining walls must be
(A) Soft
(B) Hard
(C) Light
(D) Heavy






 Answer: Option D (Heavy)


437) Permanent magnets are made of high carbon steel and
(A) 15% of cobalt
(B) 20% of cobalt
(C) 35% of cobalt
(D) 45% of cobalt







Answer: Option D (45% of cobalt)


 Building Materialsmcq



438) Stainless steel resists corrosion due to
(A) Carbon
(B) Sulphur
(C) Vanadium
(D) Chromium







 Answer: Option D (Chromium)

 Q.NO  439) The most important constituent of varnish, is
(A) Drier
(B) Solvent
(C) Resin
(D) All the above








Answer: Option D (All the above)




440) A ferrous metal is
(A) Cast iron
(B) Wrought iron
(C) Steel
(D) All the above






 Answer: Option D (All the above)

441) For making fly-ash building bricks, the following mix of fly-ash, sand and lime is ?
(A) 80 : 13 : 7
(B) 70 : 20 : 10
(C) 60 : 35 : 5
(D) None of these







 Answer: Option A ( 80 : 13 : 7)



442) Water paint is a?
(A) White wash
(B) Colour wash
(C) Whiting
(D) All the above







 Answer: Option D ( All the above)


Building Materials

 Q.NO  443

Spirit varnish generally consists of
(A) Oil, wax and resin
(B) Alcohol, wax and turpentine
(C) Pigment and synthetic resin
(D) Spirit and shellac






Answer: Option D ( Spirit and shellac)

 Q.NO  444
 Duco paints are
(A) Plastic paints
(B) Cellulose paints
(C) Emulsion paints
(D) Oil paints








Answer: Option D (Oil paints)

445)Pick up the correct statement from the following:
(A) Melamine is obtained from calcium carbide
(B) Formaldehyde is prepared synthetically from methane
(C) The melamine when reacted with formaldehyde forms the melamine-formaldehyde resin
(D) All the above








 Answer: Option D (All the above)




446)Steel contains carbon approximately
(A) 1.50% to 5.6%
(B) 0.05% to 1.75%
(C) 0.25 %
(D) None to these





 Answer: Option B

447)Based on its dry weight, a freshly felled tree may contain water
(A)  25 %
(B)  50 %
(C) 75 %
(D) 100 %






Answer: Option D (100 %)



448)Forge pig may be converted to wrought iron by?
(A) Rolling
(B) Pudding
(C) Shingling
(D) Refining







Answer: Option B (Pudding)

 449) pick up the correct statement from the following:-
(A) Bull's trench kiln a trench excavated in ground
(B) Hoffman's kiln is constructed over ground
(C) Tunnel Kiln is constructed as a tunnel
(D) All the above





 Answer: Option D (All the above)


 450 The softest rock is ?
(A) Marble
(B) Diamond
(C) Talc
(D) Quartz




Answer: Option C (Talc)









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