MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 177 Mcqs, each offering curated multiple-choice questions to sharpen your Building Materials knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
The stone used for the construction of curved or ornamental work should be soft. |
| A. | Right |
| B. | Wrong |
| Answer» B. Wrong | |
| 152. |
Granite is mainly composed of |
| A. | quartz and mica |
| B. | felspar and mica |
| C. | quartz and felspar |
| D. | quartz, felspar and mica |
| Answer» E. | |
| 153. |
The specific gravity of sandstone is |
| A. | 1.1 to 1.8 |
| B. | 1.8 to 2.65 |
| C. | 2.65 to 2.95 |
| D. | 2.95 to 3.4 |
| Answer» D. 2.95 to 3.4 | |
| 154. |
Distemper is used on |
| A. | brick walls |
| B. | concrete surfaces |
| C. | plastered surfaces exposed to weather |
| D. | plastered surfaces not exposed to weather |
| Answer» E. | |
| 155. |
The durability of concrete is proportional to |
| A. | sand content |
| B. | water-cement ratio |
| C. | cement-aggregate ratio |
| D. | aggregate-water ratio |
| Answer» D. aggregate-water ratio | |
| 156. |
The rate of hydration and hydrolysis of cement depends upon its |
| A. | soundness |
| B. | fineness |
| C. | setting time |
| D. | tensile strength |
| Answer» C. setting time | |
| 157. |
The ultimate strength of cement is provided by |
| A. | silica |
| B. | di-calcium silicate |
| C. | tri-calcium silicate |
| D. | tri-calcium aluminate |
| Answer» C. tri-calcium silicate | |
| 158. |
A good Portland cement when tested for fineness, the percentage of residue left after sieving in 90 micron IS sieve should not exceed 10 percent. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 159. |
The average out-turn of first class bricks in kiln burning is |
| A. | 50 to 60% |
| B. | 60 to 70% |
| C. | 70 to 80% |
| D. | 80 to 90% |
| Answer» E. | |
| 160. |
Slate in the form of tiles is used |
| A. | for paving |
| B. | as road metal |
| C. | as an excellent roof covering material |
| D. | for the manufacture of cement |
| Answer» D. for the manufacture of cement | |
| 161. |
During the process of burning limestone, clay forms certain compound which |
| A. | gives hydraulic lime |
| B. | gives power of quick setting |
| C. | does not allow to be dissolved in the outside water when used in damp situations |
| D. | all of the above |
| Answer» E. | |
| 162. |
Enamel paint is made by adding |
| A. | white lead in varnish |
| B. | bitumen in varnish |
| C. | white lead in lacquer |
| D. | zinc white in spirit |
| Answer» B. bitumen in varnish | |
| 163. |
A good quality cement should have higher percentage of |
| A. | silica |
| B. | free lime |
| C. | di-calcium silicate |
| D. | tri-calcium silicate |
| Answer» E. | |
| 164. |
The compressive strength of perforated bricks should not be less than |
| A. | 4 MN/m2 |
| B. | 5 MN/m2 |
| C. | 6 MN/m2 |
| D. | 7 MN/m2 |
| Answer» E. | |
| 165. |
The slaking of moderately hydraulic lime is scarcely noticeable. |
| A. | Yes |
| B. | No |
| Answer» C. | |
| 166. |
The coefficient of linear expansion of concrete is almost the same as that of steel. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 167. |
For the construction of retaining walls, a |
| A. | soft |
| B. | hard |
| C. | heavy |
| Answer» D. | |
| 168. |
The defect caused by imperfect seasoning, is called |
| A. | wet rot |
| B. | dry rot |
| C. | honeycombing |
| D. | cup shake |
| Answer» D. cup shake | |
| 169. |
For one cubic metre of brick masonry, the number of bricks required are |
| A. | 400 |
| B. | 450 |
| C. | 500 |
| D. | 550 |
| Answer» E. | |
| 170. |
The expansion of cement should not exceed |
| A. | 5 mm |
| B. | 10 mm |
| C. | 15 mm |
| D. | 20 mm |
| Answer» C. 15 mm | |
| 171. |
Which of the following is an example of silicious rock? |
| A. | Granite |
| B. | Gneiss |
| C. | Quartzite |
| D. | all of these |
| Answer» E. | |
| 172. |
The clinker is formed at a temperature of |
| A. | 500?C |
| B. | 1000?C |
| C. | 1200?C |
| D. | 1500?C |
| Answer» E. | |
| 173. |
Quick lime is a |
| A. | carbonate of lime |
| B. | oxide of calcium |
| C. | product left immediately after the calcination of pure limestone |
| D. | lime quickly treated with water |
| Answer» D. lime quickly treated with water | |
| 174. |
Lime is used |
| A. | as a matrix for concrete |
| B. | for plastering walls, ceilings etc. |
| C. | for improving soil for agricultural purposes |
| D. | all of the above |
| Answer» E. | |
| 175. |
The pigment in paints is mixed to give desired |
| A. | smoothness |
| B. | colour |
| C. | appearance |
| D. | durability |
| Answer» C. appearance | |
| 176. |
The normal consistency of Portland cement is about |
| A. | 10% |
| B. | 15% |
| C. | 20% |
| D. | 25% |
| Answer» E. | |
| 177. |
The initial setting time of rapid hardening cement should not be less than |
| A. | 30 min |
| B. | 1 hour |
| C. | 4 hours |
| D. | 8 hours |
| Answer» B. 1 hour | |