Home» Online Test » Civil Engineering » Construction Materials Online Test » Paper 1 » Paper 2 » Paper 3 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This is a FREE online test. Beware of scammers who ask for money to attend this test. Get New Questions in Each Attempt Total Questions: 50 Time Allotted: 50 minutes Passing Score: 70% Randomization: Yes Certificate: Yes Do not refresh the page! 👍 All the best! 1 / 50 1. When a bitumen is graded by 75/15, the figure 75 represents a) viscosity in centipoises b) softening point in ┬░C c) fire point in ┬░C d) flash point in ┬░C 2 / 50 2. During burning of dried bricks, the sequence of chemical changes that take place, is as under a) vitrification-dehydration-oxidation b) vitrification-oxidation-dehydration c) dehydration-oxidation-vitrification d) dehydration-vitrification-oxidation 3 / 50 3. The maximum percentage of water absorption of 1st class bricks in 24 hrs should be limited to a) 10% b) 15% c) 20% d) 24% 4 / 50 4. *The trunk of the tree left after cutting all the branches is known as a) plank b) log c) bauk d) strip 5 / 50 5. Lime suitable for making mortar of good strength a) hydraulic lime b) fat lime c) lean lime d) none of the above 6 / 50 6. Which of the following has the highest crushing strength a) limestone b) granite c) gneiss d) laterite 7 / 50 7. The defect caused by the shrinkage of timber is a) crook b) cup and bow c) twist d) all of the above 8 / 50 8. The process of mixing sand with the powdered natural soil to improve the quality is known as a) moulding b) tempering c) pugging d) blending 9 / 50 9. Emulsion paints contain: a) nitro cotton b) zinc white c) white lead d) polyvinyl acetate 10 / 50 10. *Bitumen is generally obtained from a) organic material b) petroleum product c) synthetic material d) coal 11 / 50 11. *The cracks that extend from bark towards the sapwood in the cross-section of a tree are called a) radial shakes b) star shakes c) heart shakes d) cup shakes 12 / 50 12. Muller is concerned with a) ground the base of paint b) cohesion & adhesion c) preparation of paint d) all of the above 13 / 50 13. Which one is correct? a) quick lime slow in setting b) quick lime rapid in slaking c) quick lime generates heat on water addition d) all of the above 14 / 50 14. Mica, mainly, is composed of a) calcium carbonate b) magnesium and calcium silicate c) silica with oxygen d) potassium and aluminium silicate 15 / 50 15. *The paints used in aircraft are a) dry paints b) cellulose paints c) water paints d) emulsion paints 16 / 50 16. Jhamb bricks a) over burnt b) under burnt c) kuccha d) none of the above 17 / 50 17. The layer between the bark of the tree and the sapwood, which is not yet converted into wood is called a) heartwood b) cambium layer c) softwood layer d) pith 18 / 50 18. *Duco is the trade name for a) bituminous paint b) oil paint c) cellulose paint d) water paint 19 / 50 19. Attrition test on stone is done to find out a) rate of wear b) toughness c) compressive strength d) hardness 20 / 50 20. Compared to ordinary Portland cement, the ultimate strength of pozzolana Portland cement is a) same b) more c) less d) very much less 21 / 50 21. *Fire bricks should be laid in a a) lime mortar b) fire cement mortar c) fire clay mortar d) all of the above 22 / 50 22. Slate and marble stone belong to a) igneous rocks b) metamorphic rock c) sedimentary rock d) foliated rocks 23 / 50 23. *The hardest rock is: a) marble b) talc c) diamond d) quartz 24 / 50 24. The constituent responsible for setting of hydraulic lime underwater is a) silica b) clay c) calcium oxide d) carbon dioxide 25 / 50 25. The minimum hardness number for marble is about a) 3 b) 8 c) 5 d) 10 26 / 50 26. Marble is found in a) mechil b) bagmati c) koshi d) none of the above 27 / 50 27. *Which one of the following pairs is correctly matched? a) sandstone......igneous rock b) lime stone.....sedimentary rock c) basalt...........metamorphic rock d) granite...........argillaceous rock 28 / 50 28. *If the molten magma forces itself into an already existing rock in the earth's crust and solidifies there, such a rock is known as a) metamorphic rock b) extrusive rock c) intrusive rock d) igneous rock 29 / 50 29. The paint used for automobiles is a) distemper b) emulsion paint c) oil paint d) any of the above 30 / 50 30. *The main constituent, which is mainly responsible for hydraulicity is a) water b) clay c) silica d) carbon dioxide 31 / 50 31. The advantage of adding pozzolana to lime is a) to impart greater strength b) all of the above c) to reduce shrinkage d) to increase resistance to cracking 32 / 50 32. Sand has minimum volume when: a) absolutely dry stage b) absolutely wet stage c) both of above d) none of the above 33 / 50 33. *The red color obtained by the bricks is due to the presence of a) lime b) silica c) manganese d) iron oxide 34 / 50 34. A thin pourable suspension of slaked lime in water is known as a) lime water b) lime paint c) milk of lime d) lime lotion 35 / 50 35. The trees yielding softwood is a) sal & teak b) chir & deodar c) sisham & sal d) none of the above 36 / 50 36. A good building stone should have a) all of of the below b) good appearance and color c) resistance to fire d) hardness and toughness 37 / 50 37. *Pug mill is used for a) clay preparation b) clay moulding c) brick drying d) brick burning 38 / 50 38. *The commonly used drying oil for oil paints is a) olive oil b) linseed oil c) kerosene d) acetate of lead 39 / 50 39. *Impregnating of timber is done to increase a) fire resistance of timber b) seasoning of timber c) weight of timber d) none of the above 40 / 50 40. *When water is added to cement, the cement hydrates, and chemical reactions take place while cement is setting, an increase in temperature occurs, and a considerable quantity of heat is generated. This phenomenon is called a) heating of cement b) hydration of cement c) watering of cement d) none of the above 41 / 50 41. *Galvanizing means a) depositing a fine film of zinc on iron or steel by dipping in molten zinc b) depositing a fine film of tin on iron or steel by dipping in molten tin c) depositing a fine film of lead on iron or steel by dipping in molten iron d) none of the above 42 / 50 42. The radiator of vehicles is painted with a) asbestos paint b) plastic paint c) oil paint d) bronze paint 43 / 50 43. The calcination of pure lime results in a) quick lime b) hydrated lime c) slaked lime d) fat lime 44 / 50 44. The crushing strength of 1st class brick should not be less than a) 25 kg/cm^2 b) 70 kg/cm^2 c) 105 kg/cm^2 d) 140 kg/cm^2 45 / 50 45. A prime coat is given to steelwork a) an oxide of iron paint b) a mixture of linseed oil & red lead c) an oxide of paint d) all of the above 46 / 50 46. Material generally not used as an extender in paints is a) powdered silica b) gypsums c) talc d) zinc white 47 / 50 47. *Soundness test of cement determines a) quantity of free lime b) ultimate strength c) durability d) initial setting 48 / 50 48. *In low heat cement, the constituent kept to the minimum is a) dicalcium silicate b) tricalcium silicate c) tricalcium aluminate d) tetracalcium aluminate 49 / 50 49. The strength of cement up to three months a) 100% b) 80% c) 70% d) 60% 50 / 50 50. Fracture of asbestos is a) regular b) irregular c) fibrous d) concoidal Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. 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