Civil Engineering – Building Materials Mock test – 3 Welcome to your Building Materials Mock test - 3 Take an exciting test in Building Materials You have only 20 mins to complete the test (31 Questions) Wish you all the best!!! Name Email Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as A. quick setting cement B. rapid hardening cement C. white cement D. low heat Portland cement.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.The hardest rock is A. marble B. diamond C. talc D. quartz.The timber having maximum resistance against white ants, is obtained from A. chir B. shisham C. sal D. teak.Fibre boards can be A. distempered B. painted C. painted and distempered D. used for furniture.The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called: A. radial shakes B. heart shakes C. wind cracks D. twisted fibres.Stuco paints are suitable for A. stone masonry B. brick walls C. both (a) and (b) D. neither (a) nor (b).Wrought iron is used for A. structural works in beams B. small sized water pipes C. columns and struts D. none to these.The minimum compressive strength of Ilnd class bricks should be A. 75 kg/cm2 B. 90 kg/cm2 C. 100 kg/cm2 D. 120 kg/cm2Pick up the incorrect statement from the following: A. Plastics are chemical resistant B. Plastics are durable C. Plastics are ductile D. Plastics are excellent electric insulators.Smith's test of stones is performed to find out A. the presence of soluble matter of stone B. the compressive strength of the stone C. the hardness of the stone D. the toughness of the stone.The commonly used drying oil for oil paints, is A. olive oil B. linseed oil C. kerosine oil D. accetate of lead.Turpentine oil is used in paints as A. thinner B. vehicle C. base D. drier.For the manufacture of stainless steel, steel is mixed with A. chromium B. nickel C. tungsten D. none of these.Lime concrete is generally used for A. wall foundations B. flooring at ground level C. both (a) and (b) D. neither (a) nor (b).The operation of removal of impurities or clay adhering to iron ores, is known as A. dressing B. calcination C. roasting D. smelting.Formula for quick lime, is A. CaCO3 B. Ca(OH)2 C. CO3CO2 D. none to these.The presence of original rounded surface on the manufactured piece of timber, is called A. Wane B. Torn grain C. Diagonal grain D. Chipmark.Knots in timber are A. defects caused by crushing fibres B. splits radiating from the centre C. speckled strains D. signs of branches cut off.The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called A. Cementation process B. crucible process C. Bessemer process D. Open hearth process.The type of steel used for precision levelling staff, is A. Titanium steel B. Carbon steel C. Invar D. Stainless steel.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 E. brass, silver and zinc.If water required for 1 bag of cement is 30 litres, the water cement ratio is : A. 0.40 B. 0.50 C. 0.60 D. None of these.Dextrin is A. animal glue B. starch glue C. albumin glue D. rubber based adhesiveBituminous fells are used for A. covering A.C. sheets B. covering sloping roofs C. D.P.C. D. none to these.The weight of 1 m3 of brick earth, is about A. 1200 kg B. 1500 kg C. 1800 kg D. 2000 kg.Initial setting of cement is caused due to A. Tri-calcium silicate B. Di-calcium silicate C. Tri-calcium aluminate D. Tetra calcium alumino ferrite.The normal curing period for lime mortar, is: A. one day B. 3 days C. 7 days D. 10 daysQuick 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 formThe foliated structure is very common in A. sedimentary rocks B. igneous rocks C. metamorphic rocks D. none of these.Dry rot A. cracks the timber B. reduces the strength of timber C. reduces the timber to powder D. shrinks the timber E. spoils the appearance of timber.