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This section includes 336 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
151. |
_ The cement becomes unsound by the presence of excess$? |
A. | Sulphur |
B. | Magnesia |
C. | Lime |
D. | All of these |
Answer» E. | |
152. |
_ Plastic$? |
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. | |
153. |
_ Quartzite is a$? |
A. | Metamorphic rock |
B. | Argillaceous rock |
C. | Calcareous rock |
D. | Siliceous rock |
Answer» E. | |
154. |
_ Smith's test of stones is performed to find out$? |
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 |
Answer» B. The compressive strength of the stone | |
155. |
_ The vehicle used in case of enamel paints is usually$? |
A. | Linseed oil |
B. | Water |
C. | Varnish |
D. | None of the above |
Answer» D. None of the above | |
156. |
_ Iron ore may contain$? |
A. | Carbon |
B. | Silicon |
C. | Phosphorus and manganese |
D. | All the above |
Answer» E. | |
157. |
_ For sanitary pipes and chemical stonewares,$? |
A. | Salt glazing is used |
B. | Lead glazing is used |
C. | Opaque glazing is used |
D. | None of these |
Answer» B. Lead glazing is used | |
158. |
_ The most commonly used base for timber painting, is$? |
A. | Red lead |
B. | Zinc white |
C. | White lead |
D. | Titanium white |
Answer» D. Titanium white | |
159. |
_ Which of the following is a rock?$? |
A. | Quartz |
B. | Mica |
C. | Gypsum |
D. | None of the above |
Answer» D. None of the above | |
160. |
_ Bitumen felt is used for$? |
A. | Water proofing |
B. | Damp proofing |
C. | Both (A) and (B) |
D. | Neither (A) nor (B) |
Answer» D. Neither (A) nor (B) | |
161. |
_ Which of the following metamorphic rocks has the most weather resisting characteristics?$? |
A. | Marble |
B. | Quartzite |
C. | Slate |
D. | Lime stone |
Answer» C. Slate | |
162. |
_ Geologically, marble is known as$? |
A. | Sedimentary rock |
B. | Igneous rock |
C. | Metamorphic rock |
D. | Stratified rock |
Answer» D. Stratified rock | |
163. |
_ The usual percentages of clay and metal in cermet are:$? |
A. | 50%, 50% |
B. | 60%, 40% |
C. | 70%, 30% |
D. | 80%, 20% |
Answer» E. | |
164. |
_ The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to$? |
A. | Grey cast iron |
B. | White cast iron |
C. | Mottled cast iron |
D. | Toughed cast iron |
Answer» D. Toughed cast iron | |
165. |
_ To give a brilliant finish, the type of varnish used, is$? |
A. | Water varnish |
B. | Spirit varnish |
C. | Turpentine varnish |
D. | Oil varnish |
Answer» C. Turpentine varnish | |
166. |
_ Compared to mild steel, cast iron has(i) High compressive strength(ii) High tensile strength(iii) Low compressive strength(iv) Low tensile strength$? |
A. | (i) and (ii) |
B. | (ii) and (iii) |
C. | (iii) and (iv) |
D. | (i) and (iv) |
Answer» E. | |
167. |
_ Inner part of a timber log surrounding the pitch, is called$? |
A. | Sapwood |
B. | Cambium layer |
C. | Heart wood |
D. | None to these |
Answer» D. None to these | |
168. |
_ Pug mill is used for$? |
A. | Preparation of clay |
B. | Moulding of clay |
C. | Drying of bricks |
D. | Burning of bricks |
Answer» B. Moulding of clay | |
169. |
_ According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than$? |
A. | 7 MPa |
B. | 11.5 MPa |
C. | 16 MPa |
D. | 21 MPa |
Answer» D. 21 MPa | |
170. |
_ Early attainment of strength in rapid hardening cement is mainly due to$? |
A. | Gypsum |
B. | Finer grinding |
C. | Tri-calcium silicate |
D. | Tri-calcium aluminate |
Answer» C. Tri-calcium silicate | |
171. |
_ Percentage of carbon content in mild steel is$? |
A. | Less than 0.25 |
B. | Between 0.25 and 0.7 |
C. | Between 0.7 and 1.5 |
D. | Greater than 1.5 |
Answer» B. Between 0.25 and 0.7 | |
172. |
_ Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:$? |
A. | Alumina |
B. | Lime |
C. | Iron-oxide |
D. | Magnesia |
Answer» B. Lime | |
173. |
_ Seasoning of timber is done$? |
A. | To make it water proof |
B. | To paint its surface |
C. | To increase its temperature |
D. | To remove water |
Answer» E. | |
174. |
_ Stones used for ornamental work must be$? |
A. | Soft |
B. | Hard |
C. | Light |
D. | Heavy |
Answer» B. Hard | |
175. |
_ The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner are known as$? |
A. | Knots |
B. | Rindgalls |
C. | Burls |
D. | None of these |
Answer» C. Burls | |
176. |
_ Lime mortar is generally made with$? |
A. | Quick lime |
B. | Fat lime |
C. | Hydraulic lime |
D. | Plain lime |
Answer» D. Plain lime | |
177. |
_ The main constituent of cement which is responsible for initial setting of cement is$? |
A. | dicalcium silicate |
B. | tricalcium silicate |
C. | tricalcium aluminate |
D. | all of the above |
Answer» D. all of the above | |
178. |
_ Name the type of cement from the following for canal linings:$? |
A. | Sulphate resisting cement |
B. | Rapid hardening cement |
C. | Quick setting cement |
D. | Pozzolana cement |
Answer» B. Rapid hardening cement | |
179. |
_ A badly mixed cement concrete results in$? |
A. | Segregation |
B. | Bleeding |
C. | Honey combing |
D. | None of these |
Answer» D. None of these | |
180. |
_ Rapid hardening cement contains$? |
A. | Tri-calcium silicate |
B. | Tri-calcium aluminate |
C. | Tetra-calcium alumino-ferrite |
D. | Di-calcium silicate |
Answer» B. Tri-calcium aluminate | |
181. |
_ Asbestos$? |
A. | Is an excellent insulator for heat and electricity |
B. | Is fire-proof and acid proof |
C. | Has sp. gravity equal to 3.10 |
D. | All the above |
Answer» E. | |
182. |
_ Stucco paints are suitable for$? |
A. | Stone masonry |
B. | Brick walls |
C. | Both (A) and (B) |
D. | Neither (A) nor (B) |
Answer» D. Neither (A) nor (B) | |
183. |
__A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than__ |
A. | 10 % |
B. | 15 % |
C. | 20 % |
D. | 25 % |
Answer» D. 25 % | |
184. |
__The percentage of alumina and silica in good fire clay vary respectively is__ |
A. | 25, 75 |
B. | 30, 70 |
C. | 35, 65 |
D. | All of these |
Answer» B. 30, 70 | |
185. |
__Which of the following trees yields hard wood?__ |
A. | Deodar |
B. | Chir |
C. | Shishum |
D. | Pine |
Answer» D. Pine | |
186. |
__After storage, the strength of cement__ |
A. | Decreases |
B. | Increases |
C. | Remains same |
D. | May increase or decrease |
Answer» B. Increases | |
187. |
__The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called__ |
A. | Plutonic rocks |
B. | Hypabyssal rocks |
C. | Volcanic rocks |
D. | Igneous rocks |
Answer» B. Hypabyssal rocks | |
188. |
__The pigment used in paints for corrosive resistance, is__ |
A. | White lead |
B. | Ferrous oxide |
C. | Zinc white |
D. | Red lead |
Answer» E. | |
189. |
__A stone is rejected if it absorbs water more than__ |
A. | 5 % |
B. | 10 % |
C. | 15 % |
D. | 20 % |
Answer» C. 15 % | |
190. |
__Assertion A : Pure lime takes a long time to develop adequate strength.Reason R : Pure lime has slow hardening characteristics.Select your answer according to the coding system given below:__ |
A. | Both A and R is true and R is correct explanation of A |
B. | Both A and R is true and R is not a correct explanation of A |
C. | A is true but R is false |
D. | A is false but R is true |
Answer» B. Both A and R is true and R is not a correct explanation of A | |
191. |
__Seasoning of timber is essential to remove__ |
A. | Knots from timber |
B. | Sap from timber |
C. | Twisted fibre from timber |
D. | Roughness of timber |
Answer» C. Twisted fibre from timber | |
192. |
__Bitumen completely dissolves in__ |
A. | Carbon bisulphide |
B. | Chloroform |
C. | Coal tar |
D. | All of these |
Answer» E. | |
193. |
__Sea sand used in structures causes__ |
A. | Dampness |
B. | Efflorescence |
C. | Disintegration |
D. | All of these |
Answer» E. | |
194. |
_Pick up the compound responsible for early strength of cement from the following:$? |
A. | Tetra-calcium alumino-ferrite |
B. | Tri-calcium silicate |
C. | Tri-calcium aluminate |
D. | Di-calcium silicate |
Answer» C. Tri-calcium aluminate | |
195. |
_A bull nose brick is not used for$? |
A. | Rounding off sharp corners |
B. | Pillars |
C. | Decoration purpose |
D. | Arches |
Answer» E. | |
196. |
_Which of the following timbers is suitable for making sports goods?$? |
A. | Mulberry |
B. | Mahogany |
C. | Sal |
D. | Deodar |
Answer» B. Mahogany | |
197. |
_The foliated structure is very common in$? |
A. | Sedimentary rocks |
B. | Igneous rocks |
C. | Metamorphic rocks |
D. | None of these |
Answer» D. None of these | |
198. |
_The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick$? |
A. | 20 % |
B. | 15 % |
C. | 10 % |
D. | None of these |
Answer» B. 15 % | |
199. |
_A well seasoned timber may contain moisture up to$? |
A. | 4 to 6 % |
B. | 6 to 8 % |
C. | 8 to 10 % |
D. | 10 to 12 % |
Answer» E. | |
200. |
_Bessemer process is used for the manufacture of$? |
A. | Pig iron |
B. | Cast iron |
C. | Wrought iron |
D. | Steel |
Answer» E. | |