McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 251. |
If water required for 1 bag of cement is 30 litres, the water cement ratio is: |
| A. | 0.40 |
| B. | 0.50 |
| C. | 0.60 |
| D. | None of these |
| Answer» C. 0.60 | |
| 252. |
A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called |
| A. | Slate |
| B. | Plank |
| C. | Board |
| D. | Strip |
| Answer» D. Strip | |
| 253. |
The percentage of water for normal consistency, is |
| A. | 5% to 15% |
| B. | 10% to 25% |
| C. | 15% to 25% |
| D. | 20% to 30% |
| Answer» C. 15% to 25% | |
| 254. |
Pick up the correct statement from the following: |
| A. | The baked earth is called terra-cotta |
| B. | The articles prepared from clay which is burnt at low temperature and cooled down slowly, are called earthen-ware |
| C. | The articles prepared from refractory clays which as mixed with stone and crushed pottery, are called stone ware |
| D. | All the above |
| Answer» D. All the above | |
| 255. |
In a rock calcium carbonate predominates. State whether it is: |
| A. | Siliceous rock |
| B. | Argillaceous rock |
| C. | Calcareous rock |
| D. | None of these |
| Answer» C. Calcareous rock | |
| 256. |
The cracks which extend from bark towards the sap wood in the cross section of a tree, are called |
| A. | Radial shakes |
| B. | Star shakes |
| C. | Heart shakes |
| D. | Cup shakes |
| Answer» B. Star shakes | |
| 257. |
The steel used for rails under heavy traffic and on sharp curves, is |
| A. | Nickel steel |
| B. | Chrome steel |
| C. | Manganese steel |
| D. | Vanadium steel |
| Answer» C. Manganese steel | |
| 258. |
The steel used in R.C.C. work is |
| A. | Stainless steel |
| B. | Mild steel |
| C. | High carbon steel |
| D. | Wrought iron |
| Answer» B. Mild steel | |
| 259. |
Pick up the rock which is not a sedimentary rock from the following: |
| A. | Gravel |
| B. | Sand stone |
| C. | Gypsum |
| D. | Dolerite |
| Answer» D. Dolerite | |
| 260. |
Acrylic is the name of |
| A. | Cellulose resin |
| B. | Alkyd resin |
| C. | Methyl methacrylate |
| D. | Cumarone-indene |
| Answer» C. Methyl methacrylate | |
| 261. |
The PVC doors and windows are preferred as they are |
| A. | Rust proof |
| B. | Rot proof |
| C. | Water proof |
| D. | All of these |
| Answer» D. All of these | |
| 262. |
The sequence of refractory materials according to increasing melting points is: |
| A. | Dolomite, Magnesia, Bauxite, Chromites |
| B. | Bauxite, Chromites, Dolomite, Magnesia |
| C. | Magnesia, Bauxite, Dolomite, Chromites |
| D. | None of these |
| Answer» B. Bauxite, Chromites, Dolomite, Magnesia | |
| 263. |
Upto a maximum of 72% of iron, is available in |
| A. | Magnetite |
| B. | Limonite |
| C. | Siderite |
| D. | Iron pyrites |
| Answer» A. Magnetite | |
| 264. |
The melting point of silica is: |
| A. | 1570°C |
| B. | 1630°C |
| C. | 1730°C |
| D. | 1850°C |
| Answer» C. 1730°C | |
| 265. |
Lime stones are generally known as |
| A. | Aqueous rocks |
| B. | Sedimentary rocks |
| C. | Stratified rocks |
| D. | All the above |
| Answer» D. All the above | |
| 266. |
Stones used for rubble masonry must be |
| A. | Soft |
| B. | Hard |
| C. | Light |
| D. | Heavy |
| Answer» B. Hard | |
| 267. |
The property by virtue of which lime sets under water, is known as |
| A. | Slacking |
| B. | Setting |
| C. | Hydraulicity |
| D. | Calcining |
| Answer» C. Hydraulicity | |
| 268. |
Porcelain is used as: |
| A. | Sanitary wares |
| B. | Electric insulators |
| C. | Storage vessels |
| D. | Reactor chambers |
| Answer» D. Reactor chambers | |
| 269. |
The lime which contains high percentage of calcium oxide, is generally called |
| A. | Fat lime |
| B. | Rich lime |
| C. | White lime |
| D. | None of these |
| Answer» D. None of these | |
| 270. |
Second class bricks |
| A. | Are of dark brown colour |
| B. | Produce a metallic sound when struck |
| C. | Are well burnt |
| D. | Are under burnt |
| Answer» B. Produce a metallic sound when struck | |
| 271. |
Wrought iron contains carbon upto |
| A. | 0.25 % |
| B. | 1.0 % |
| C. | 1.5 % |
| D. | 2 % |
| Answer» A. 0.25 % | |
| 272. |
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» C. White forge pig | |
| 273. |
Kaolin is chemically classified as |
| A. | Metamorphic rock |
| B. | Argillaceous rock |
| C. | Calcareous rock |
| D. | Siliceous rock |
| Answer» B. Argillaceous rock | |
| 274. |
Sewer pipes are made of |
| A. | Earthen ware |
| B. | Stone ware |
| C. | Refractory clay |
| D. | All the above |
| Answer» B. Stone ware | |
| 275. |
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» B. Crucible process | |
| 276. |
The rock generally used for roofing, is |
| A. | Granite |
| B. | Basalt |
| C. | Slate |
| D. | Pumice |
| Answer» C. Slate | |
| 277. |
The lime which contains mainly calcium oxide and slacks with water, is |
| A. | Fat lime |
| B. | Quick lime |
| C. | Hydraulic lime |
| D. | Poor lime |
| Answer» B. Quick lime | |
| 278. |
The standard size of masonry bricks, is |
| A. | 18 cm × 8 cm × 8 cm |
| B. | 19 cm × 9 cm × 9 cm |
| C. | 20 cm × 10 cm × 10 cm |
| D. | 21 cm × 11 cm × 11 cm |
| Answer» B. 19 cm × 9 cm × 9 cm | |
| 279. |
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» A. 15, 75, 10 | |
| 280. |
Knots in timber are |
| A. | Defects caused by crushing fibres |
| B. | Splits radiating from the centre |
| C. | Speckled strains |
| D. | Signs of branches cut off |
| Answer» D. Signs of branches cut off | |
| 281. |
Pick up correct statement from the following: |
| A. | Fibre boards are used for thermal and acoustic control |
| B. | Fibre boards are used for light weight standing members |
| C. | Fibre boards are obtained by impregnating a resin product on fibres |
| D. | All the above |
| Answer» D. All the above | |
| 282. |
Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as |
| A. | Quick setting cement |
| B. | Rapid hardening cement |
| C. | White cement |
| D. | Low heat Portland cement |
| Answer» C. White cement | |
| 283. |
Pick up the correct statement from the following: |
| A. | Slaked lime contains calcium hydroxide |
| B. | Quick lime contains calcium oxide |
| C. | Slaked lime may be obtained from quick lime |
| D. | All the above |
| Answer» D. All the above | |
| 284. |
The minimum compressive strength of 1st class bricks should be |
| A. | 75 kg/cm2 |
| B. | 90 kg/cm2 |
| C. | 100 kg/cm2 |
| D. | 120 kg/cm2 |
| Answer» C. 100 kg/cm2 | |
| 285. |
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» C. Mottled cast iron | |
| 286. |
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» D. 10 to 12 % | |
| 287. |
The usual percentages of clay and metal in cermet are: |
| A. | 50%, 50% |
| B. | 60%, 40% |
| C. | 70%, 30% |
| D. | 80%, 20% |
| Answer» D. 80%, 20% | |
| 288. |
Pick up the correct statement from the following: |
| A. | The plastic bottles are made by the process of blowing |
| B. | The application of thermo-setting resins on sheets of paper, is called laminating process |
| C. | The plastic articles made by placing raw material in the desired moulds, is known as moulding process |
| D. | All the above |
| Answer» D. All the above | |
| 289. |
The specific gravity of marble, is |
| A. | 2.50 |
| B. | 2.60 |
| C. | 2.66 |
| D. | 2.72 |
| Answer» D. 2.72 | |
| 290. |
Plastic asphalt is |
| A. | Used as a water proofing layer over roof |
| B. | A mixture of cement and asphalt |
| C. | A natural asphalt |
| D. | A refinery product |
| Answer» B. A mixture of cement and asphalt | |
| 291. |
Pick up the correct statement from the following: |
| A. | Rusting is caused due to combined action of air, moisture and carbon dioxide |
| B. | During rusting, first ferrous bicarbonates are formed |
| C. | On further oxidation ferrous bicarbonates get converted to ferric bicarbonates |
| D. | All the above |
| Answer» D. All the above | |
| 292. |
The commonly used base for iron and steel work, is |
| A. | Red lead |
| B. | Zinc white |
| C. | White lead |
| D. | Titanium white |
| Answer» A. Red lead | |
| 293. |
For high grade instruments the steel preferred to, is |
| A. | Cast steel |
| B. | Bessemer steel |
| C. | Mild steel |
| D. | Whitworth compressed steel |
| Answer» A. Cast steel | |
| 294. |
Bitumen felt is used for |
| A. | Water proofing |
| B. | Damp proofing |
| C. | Both (A) and (B) |
| D. | Neither (A) nor (B) |
| Answer» C. Both (A) and (B) | |
| 295. |
The most important constituent of an oil paint, is |
| A. | Thinner |
| B. | Vehicle |
| C. | Pigment |
| D. | All the above |
| Answer» D. All the above | |
| 296. |
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» D. All the above | |
| 297. |
Brass is an alloy of |
| A. | Copper and zinc |
| B. | Zinc and lead |
| C. | Tin and silver |
| D. | Zinc and nickel |
| Answer» A. Copper and zinc | |
| 298. |
Pick up the polymineralic rock from the following: |
| A. | Quartz sand |
| B. | Pure gypsum |
| C. | Magnesite |
| D. | Granite |
| Answer» D. Granite | |
| 299. |
Pick up the hypabyssal rock from the following: |
| A. | Granite |
| B. | Dolerite |
| C. | Basalt |
| D. | All the above |
| Answer» B. Dolerite | |
| 300. |
The rocks formed by gradual deposition, are called |
| A. | Sedimentary rocks |
| B. | Igneous rocks |
| C. | Metamorphic rocks |
| D. | None of these |
| Answer» A. Sedimentary rocks | |
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