MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Asbestos cement |
| A. | Is brittle |
| B. | Warps due to changes in humidity |
| C. | Strength is lowered when saturated by water |
| D. | All of the above |
| Answer» E. | |
| 2. |
Asbestos |
| A. | Is a natural fibrous mineral substance |
| B. | Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) |
| C. | Contains iron oxide and alumina |
| D. | All the above |
| Answer» E. | |
| 3. |
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» C. 50 to 60 % | |
| 4. |
Percentage of silica in a good brick earth lies between |
| A. | 5 to 10 % |
| B. | 20 to 30 % |
| C. | 50 to 60 % |
| D. | 70 to 80 % |
| Answer» D. 70 to 80 % | |
| 5. |
The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively: |
| A. | 15, 75, 10 |
| B. | 75, 10, 15 |
| C. | 10, 15, 75 |
| D. | 10, 75, 15 |
| Answer» B. 75, 10, 15 | |
| 6. |
Geologically, marble is known as |
| A. | Sedimentary rock |
| B. | Igneous rock |
| C. | Metamorphic rock |
| D. | Stratified rock |
| Answer» D. Stratified rock | |
| 7. |
Chemically, marble is known as |
| A. | Metamorphic rock |
| B. | Argillaceous rock |
| C. | Calcareous rock |
| D. | Siliceous rock |
| Answer» D. Siliceous rock | |
| 8. |
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» B. 45° | |
| 9. |
Spalling hammer is used for |
| A. | Driving wooden headed chisels |
| B. | Rough dressing of stones |
| C. | Carving of stones |
| D. | Breaking small projection of stones |
| Answer» C. Carving of stones | |
| 10. |
Good quality stones must |
| A. | Be durable |
| B. | Be free from clay |
| C. | Resist action of acids |
| D. | All the above |
| Answer» E. | |
| 11. |
The usual percentages of clay and metal in cermet are: |
| A. | 50%, 50% |
| B. | 60%, 40% |
| C. | 70%, 30% |
| D. | 80%, 20% |
| Answer» E. | |
| 12. |
Wrought iron contains carbon about |
| A. | 1.5% to 5.5% |
| B. | 0.5% to 1.75% |
| C. | 0.1% to 0.25% |
| D. | None to these |
| Answer» D. None to these | |
| 13. |
Acrylic sheets |
| A. | Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness |
| B. | Are generally unaffected by most household detergents |
| C. | Possess the light transmission rate of 93% |
| D. | All the above |
| Answer» E. | |
| 14. |
Which of the following stone is best suited for construction of piers and abutments of a railway bridge? |
| A. | Granite |
| B. | Sand stone |
| C. | Lime stone |
| D. | Quartzite |
| Answer» B. Sand stone | |
| 15. |
The tendency of a stone is, to split along: |
| A. | Texture |
| B. | Fracture |
| C. | Cleavage |
| D. | Structure |
| Answer» D. Structure | |
| 16. |
The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to |
| A. | Grey cast iron |
| B. | White cast iron |
| C. | Mottled cast iron |
| D. | Toughed cast iron |
| Answer» D. Toughed cast iron | |
| 17. |
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» E. | |
| 18. |
The variety of pig iron used for manufacture of wrought iron, is |
| A. | Bessemer pig |
| B. | Grey or foundry pig |
| C. | White forge pig |
| D. | Mottled pig |
| Answer» D. Mottled pig | |
| 19. |
Percentage content of silica in window glass, is |
| A. | 40 to 45 |
| B. | 50 to 55 |
| C. | 60 to 65 |
| D. | 70 to 75 |
| Answer» E. | |
| 20. |
A mortar joint in masonry which is normal to the face of wall is known as |
| A. | Bed joint |
| B. | Wall joint |
| C. | Cross joint |
| D. | Bonded joint |
| Answer» D. Bonded joint | |
| 21. |
To give a brilliant finish, the type of varnish used, is |
| A. | Water varnish |
| B. | Spirit varnish |
| C. | Turpentine varnish |
| D. | Oil varnish |
| Answer» C. Turpentine varnish | |
| 22. |
Whitworth compressed steel is obtained when molten steel is subjected to a pressure of |
| A. | 5 kg/mm² |
| B. | 9 kg/mm² |
| C. | 13 kg/mm² |
| D. | 15 kg/mm² |
| Answer» C. 13 kg/mm² | |
| 23. |
In arches, stratified stones are placed so that their planes are |
| A. | Parallel |
| B. | Perpendicular |
| C. | Radial |
| D. | None of these |
| Answer» D. None of these | |
| 24. |
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» E. | |
| 25. |
Depending on the chemical composition and mechanical properties, iron may be classified as |
| A. | Cast iron |
| B. | Wrought iron |
| C. | Steel |
| D. | All the above |
| Answer» E. | |
| 26. |
Stucco paints are suitable for |
| A. | Stone masonry |
| B. | Brick walls |
| C. | Both (A) and (B) |
| D. | Neither (A) nor (B) |
| Answer» D. Neither (A) nor (B) | |
| 27. |
The most important constituent of an oil paint, is |
| A. | Thinner |
| B. | Vehicle |
| C. | Pigment |
| D. | All the above |
| Answer» E. | |
| 28. |
For the manufacture of plywood, veneers are placed so that grains of adjacent veneers |
| A. | Run at right angles |
| B. | Parallel |
| C. | Inclined at 45° |
| D. | Inclined at 60° |
| Answer» B. Parallel | |
| 29. |
Gypsum consists of |
| A. | H₂S and CO₂ |
| B. | CaSO4 and H₂O |
| C. | Lime and H₂O |
| D. | CO₂ and calcium |
| Answer» C. Lime and H₂O | |
| 30. |
Plywood has the advantage of |
| A. | Greater tensile strength in longer direction |
| B. | Greater tensile strength in shorter direction |
| C. | Same tensile strength in all directions |
| D. | None of the above |
| Answer» D. None of the above | |
| 31. |
Compared to mild steel, cast iron has(i) High compressive strength(ii) High tensile strength(iii) Low compressive strength(iv) Low tensile strength |
| A. | (i) and (ii) |
| B. | (ii) and (iii) |
| C. | (iii) and (iv) |
| D. | (i) and (iv) |
| Answer» E. | |
| 32. |
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 |
| Answer» B. Crucible process | |
| 33. |
The type of roof which slopes in two directions with a break in the slope on each side is known as |
| A. | gable roof |
| B. | hip roof |
| C. | gambrel roof |
| D. | mansard roof |
| Answer» D. mansard roof | |
| 34. |
If ‘P’ is the percentage of water required for normal consistency, water to be added for determination of initial setting time, is |
| A. | 0.70 P |
| B. | 0.75 P |
| C. | 0.80 P |
| D. | 0.85 P |
| Answer» E. | |
| 35. |
The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as |
| A. | Cementation process |
| B. | Crucible process |
| C. | Bessemer process |
| D. | Open hearth process. |
| Answer» C. Bessemer process | |
| 36. |
Pick up the correct statement from the following: |
| A. | In basic Bessemer process, the steel heats the converter |
| B. | In open-hearth process, the furnace heats the steel |
| C. | In Siemens process, the impurities of pig iron are oxidised by the oxygen of the ore |
| D. | all the above. |
| Answer» E. | |
| 37. |
Vanadium steel is generally used for |
| A. | railway switches and crossing |
| B. | bearing balls |
| C. | magnets |
| D. | axles and springs. |
| Answer» E. | |
| 38. |
Plastic |
| A. | is an organic substance |
| B. | consists of natural or synthetic binders |
| C. | finished products are rigid and stable at normal temperature |
| D. | All the above. |
| Answer» E. | |
| 39. |
For filling cracks in masonry structures, the type of bitumen used, is |
| A. | cut-back bitumen |
| B. | bitumen-emulsion |
| C. | blown bitumen |
| D. | plastic bitumen. |
| Answer» E. | |
| 40. |
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» E. | |
| 41. |
The variety of pig iron used for the manufacture of steel by Bessemer process, is |
| A. | Bessemer pig |
| B. | Grey pig |
| C. | White forge pig |
| D. | Mottled pig. |
| Answer» B. Grey pig | |
| 42. |
Initial setting time of cement for asbestos cement products should be not less than |
| A. | 30 minutes |
| B. | 50 minutes |
| C. | 75 minutes |
| D. | 90 minutes. |
| Answer» E. | |
| 43. |
Varnish is a transparent or semi-transparent solution of resinuous substances in |
| A. | alcohol |
| B. | linseed |
| C. | turpentine |
| D. | all the above. |
| Answer» E. | |
| 44. |
The commonly used colour pigment in paints, is |
| A. | ambers |
| B. | carbon black |
| C. | iron oxide |
| D. | all the above. |
| Answer» E. | |
| 45. |
Fibre glass |
| A. | retains heat-longer |
| B. | has a higher strength to weight ratio |
| C. | is shock proof and fire retardent |
| D. | all the above. |
| Answer» E. | |
| 46. |
Sewer pipes are made of |
| A. | earthen ware |
| B. | stone ware |
| C. | refractory clay |
| D. | refractory clay |
| Answer» C. refractory clay | |
| 47. |
Good quality stones must |
| A. | be durable |
| B. | be free from clay |
| C. | resist action of acids |
| D. | all the above. |
| Answer» E. | |
| 48. |
Polymerization helps to improve the property of |
| A. | strength |
| B. | rigidity |
| C. | elasticity |
| D. | all of these. |
| Answer» E. | |
| 49. |
For preparing porcelains, the clay should be |
| A. | sufficiently pure |
| B. | of high degree of tanacity |
| C. | of good plasticity |
| D. | All the above. |
| Answer» E. | |
| 50. |
Galvanising means covering iron with a thin coat of |
| A. | tin |
| B. | zinc |
| C. | glaze |
| D. | coal tar. |
| Answer» C. glaze | |