McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 151. |
Pug mill is used for |
| A. | Preparation of clay |
| B. | Moulding of clay |
| C. | Drying of bricks |
| D. | Burning of bricks |
| Answer» A. Preparation of clay | |
| 152. |
Pick up the synthetic resin from the following: |
| A. | Urea resin |
| B. | Phenolic resin |
| C. | Resorcinol resin |
| D. | All of these |
| Answer» D. All of these | |
| 153. |
Addition of pozzolana to ordinary Portland cement increases |
| A. | Bleeding |
| B. | Shrinkage |
| C. | Permeability |
| D. | Heat of hydration |
| Answer» B. Shrinkage | |
| 154. |
Plastics are compounds of carbon with element |
| A. | Hydrogen |
| B. | Nitrogen |
| C. | Oxygen |
| D. | All of these |
| Answer» D. All of these | |
| 155. |
Paints with white lead base are suitable for painting of |
| A. | Wood work |
| B. | Iron work |
| C. | Both wood work and iron work |
| D. | None of the above |
| Answer» A. Wood work | |
| 156. |
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» D. 2.7 | |
| 157. |
Sandstone is a
|
| A. | Only (i) |
| B. | Both (i) and (ii) |
| C. | Both (i) and (iii) |
| D. | All (i), (ii) and (iii) |
| Answer» D. All (i), (ii) and (iii) | |
| 158. |
The rocks having alumina or clay as their major constituents are known as |
| A. | Siliceous rocks |
| B. | Argillaceous rocks |
| C. | Calcareous rocks |
| D. | Sedimentary rocks |
| Answer» B. Argillaceous rocks | |
| 159. |
The practical limit of moisture content achieved in air drying of timber is |
| A. | 5 % |
| B. | 15 % |
| C. | 25 % |
| D. | 35 % |
| Answer» B. 15 % | |
| 160. |
Glazing of clay products, is done |
| A. | To improve their appearance |
| B. | To protect them from atmospheric effect |
| C. | To protect them from corrosive action |
| D. | All the above |
| Answer» D. All the above | |
| 161. |
Study the following statements.
|
| A. | (i) and (iv) |
| B. | (ii) and (iii) |
| C. | (i) and (ii) |
| D. | (iii) and (iv) |
| Answer» B. (ii) and (iii) | |
| 162. |
The yield strength and tensile strength of low carbon steel may be improved by the addition of |
| A. | Manganese |
| B. | Chromium |
| C. | Nickel |
| D. | Vanadium |
| Answer» D. Vanadium | |
| 163. |
Three basic raw materials which are needed in large quantities for production of steel are |
| A. | Iron ore, coal and sulphur |
| B. | Iron ore, carbon and sulphur |
| C. | Iron ore, coal and lime stone |
| D. | Iron ore, carbon and lime stone |
| Answer» C. Iron ore, coal and lime stone | |
| 164. |
To give a brilliant finish, the type of varnish used, is |
| A. | Water varnish |
| B. | Spirit varnish |
| C. | Turpentine varnish |
| D. | Oil varnish |
| Answer» B. Spirit varnish | |
| 165. |
Which of the following should be used for hearting of thicker walls? |
| A. | Headers |
| B. | Stretchers |
| C. | Brick bats |
| D. | Queen closer |
| Answer» A. Headers | |
| 166. |
Asbestos |
| A. | Is an excellent insulator for heat and electricity |
| B. | Is fire-proof and acid proof |
| C. | Has sp. gravity equal to 3.10 |
| D. | All the above |
| Answer» D. All the above | |
| 167. |
A heavy stone is suitable for |
| A. | Arches |
| B. | Rubble masonry |
| C. | Roads |
| D. | Retaining walls |
| Answer» D. Retaining walls | |
| 168. |
Pick up the correct statement from the following: |
| A. | Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon |
| B. | The edges of a finished wrought iron are rough due to red shortage |
| C. | Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4) |
| D. | All the above |
| Answer» D. All the above | |
| 169. |
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» B. 20 to 30 % | |
| 170. |
Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as |
| A. | Bessemer pig |
| B. | Grey or foundry pig |
| C. | White or forge pig |
| D. | Mottled pig |
| Answer» A. Bessemer pig | |
| 171. |
Le-Chatelier's device is used for determining the |
| A. | Setting time of cement |
| B. | Soundness of cement |
| C. | Tensile strength of cement |
| D. | Compressive strength of cement |
| Answer» B. Soundness of cement | |
| 172. |
Red short iron cracks when bent due to the presence of |
| A. | Sulphur |
| B. | Carbon |
| C. | Phosphorus |
| D. | Silicon |
| Answer» A. Sulphur | |
| 173. |
Percentage of carbon content in mild steel is |
| A. | Less than 0.25 |
| B. | Between 0.25 and 0.7 |
| C. | Between 0.7 and 1.5 |
| D. | Greater than 1.5 |
| Answer» A. Less than 0.25 | |
| 174. |
The method of addition polymerization is used for obtaining: |
| A. | Polystyrene |
| B. | Polypropylene |
| C. | Polyvinylchloride |
| D. | All of these |
| Answer» D. All of these | |
| 175. |
Which of the following metamorphic rocks has the most weather resisting characteristics? |
| A. | Marble |
| B. | Quartzite |
| C. | Slate |
| D. | Lime stone |
| Answer» B. Quartzite | |
| 176. |
To retard the initial setting time of cement, the compound responsible, is |
| A. | Tri-calcium silicate |
| B. | Gypsum |
| C. | Di-calcium silicate |
| D. | Tri-calcium aluminate |
| Answer» B. Gypsum | |
| 177. |
Seasoning of timber is done for |
| A. | Increasing moisture content |
| B. | Decreasing moisture content |
| C. | Increasing strength of timber |
| D. | None to these |
| Answer» B. Decreasing moisture content | |
| 178. |
The steel used for the manufacture of rails, is |
| A. | Bessemer steel |
| B. | Mild steel |
| C. | Cast steel |
| D. | Stainless steel |
| Answer» A. Bessemer steel | |
| 179. |
Durability of building stone is affected by its |
| A. | Chemical composition |
| B. | Texture |
| C. | Resistance to atmosphere |
| D. | All the above |
| Answer» D. All the above | |
| 180. |
Pick up the most favourable condition for the rapid growth of fungus for dry rot from the following: |
| A. | Absence of sun light |
| B. | Dampness |
| C. | Presence of sap |
| D. | All the above |
| Answer» D. All the above | |
| 181. |
Crushing strength of a first class brick should not be less than |
| A. | 3.5 N/mm² |
| B. | 7.0 N/mm² |
| C. | 10.5 N/mm² |
| D. | 14.0 N/mm² |
| Answer» C. 10.5 N/mm² | |
| 182. |
Pick up the correct statement from the following: |
| A. | Rust is due to formation of oxides |
| B. | Cast iron oxidises less |
| C. | Steel oxidises most |
| D. | All the above |
| Answer» D. All the above | |
| 183. |
The main constituent of cement which is responsible for initial setting of cement is |
| A. | Di-calcium silicate |
| B. | Tri-calcium silicate |
| C. | Tri-calcium aluminate |
| D. | All of the above |
| Answer» C. Tri-calcium aluminate | |
| 184. |
Pick up the correct statement from the following: |
| A. | The low voltage porcelain is prepared by wet process |
| B. | The high voltage porcelain is prepared by dry process |
| C. | The low voltage porcelain is prepared by dry process |
| D. | None of the above |
| Answer» C. The low voltage porcelain is prepared by dry process | |
| 185. |
In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as |
| A. | English bond |
| B. | Double Flemish bond |
| C. | Zigzag bond |
| D. | Single Flemish bond |
| Answer» B. Double Flemish bond | |
| 186. |
In stone masonry, if stones are so placed that their layers are parallel to the direction of load, they |
| A. | Split easily |
| B. | Are affected by moisture |
| C. | Both (A) and (B) |
| D. | None of these |
| Answer» C. Both (A) and (B) | |
| 187. |
Granite is not suitable for ordinary building purpose because |
| A. | It cannot be polished |
| B. | It is not a fire proof material |
| C. | It is costly |
| D. | It has less crushing strength |
| Answer» C. It is costly | |
| 188. |
Lacquer paints |
| A. | Are generally applied on structural steel |
| B. | Are less durable as compared to enamel paints |
| C. | Consist of resin and nitro-cellulose |
| D. | All the above |
| Answer» D. All the above | |
| 189. |
Glazing is used to make earthenware |
| A. | Hard |
| B. | Soft |
| C. | Porous |
| D. | Impervious |
| Answer» D. Impervious | |
| 190. |
In the cement the compound quickest to react with water, is |
| A. | Tri-calcium aluminate |
| B. | Tetra-calcium alumino-ferrite |
| C. | Tri-calcium silicate |
| D. | Di-calcium silicate |
| Answer» A. Tri-calcium aluminate | |
| 191. |
Which of the following gradients exerts maximum influence on properties of steel? |
| A. | Iron |
| B. | Carbon |
| C. | Manganese |
| D. | Sulphur |
| Answer» B. Carbon | |
| 192. |
Stainless steel contains |
| A. | 18% of chromium and 8% nickel |
| B. | 8% of chromium and 18% of nickel |
| C. | 12% of chromium and 36% of nickel |
| D. | 36% of chromium and 12% of nickel |
| Answer» A. 18% of chromium and 8% nickel | |
| 193. |
Excess of silica in brick earth results in |
| A. | Cracking and warping of bricks |
| B. | Loss of cohesion |
| C. | Enhancing the impermeability of bricks |
| D. | None of the above |
| Answer» B. Loss of cohesion | |
| 194. |
Which one of the following is acid resistant asbestos? |
| A. | Actinolite asbestos |
| B. | Amosite asbestos |
| C. | Anthophylite asbestos |
| D. | All the above |
| Answer» D. All the above | |
| 195. |
The slump recommended for mass concrete is about |
| A. | 25 mm to 50 mm |
| B. | 50 mm to 100 mm |
| C. | 100 mm to 125 mm |
| D. | 125 mm to 150 mm |
| Answer» A. 25 mm to 50 mm | |
| 196. |
For preparing porcelains, the clay should be |
| A. | Sufficiently pure |
| B. | Of high degree of tenacity |
| C. | Of good plasticity |
| D. | All the above |
| Answer» D. All the above | |
| 197. |
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» D. All the above | |
| 198. |
Pick up the correct statement regarding low heat cement from the following: |
| A. | It possesses less compressive strength |
| B. | Its initial setting time is about one hour |
| C. | Its final setting time is about 10 hours |
| D. | All the above |
| Answer» D. All the above | |
| 199. |
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» D. All the above | |
| 200. |
The commonly used lime in white washing, is |
| A. | White lime |
| B. | Fat lime |
| C. | Hydraulic lime |
| D. | Quick lime |
| Answer» B. Fat lime | |
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