McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 501. |
A good brick earth should contain |
| A. | about 20% to 30% of alumina |
| B. | about 50% to 60% of silica |
| C. | not more than 5% of lime |
| D. | All the above. |
| Answer» D. All the above. | |
| 502. |
The commonly used lime in white washing, is |
| A. | white lime |
| B. | fat lime |
| C. | hydraulic lime |
| D. | lime |
| Answer» B. fat lime | |
| 503. |
Pick up the plutonic rock from the following |
| A. | Granite |
| B. | Dolerite |
| C. | Basalt |
| D. | All the above. |
| Answer» A. Granite | |
| 504. |
Seasoning is |
| A. | a process of removing sap |
| B. | creosoting |
| C. | painting with sodium silicate |
| D. | Coating with tar. |
| Answer» A. a process of removing sap | |
| 505. |
Rocks formed due to alteration of original structure due to heat and excessive pressure are |
| A. | sedimentary rocks |
| B. | igneous rocks |
| C. | metamorphic rocks |
| D. | none of these. |
| Answer» C. metamorphic rocks | |
| 506. |
The compound of Portland cement which contributes strength after two to three years is |
| A. | Tricalcium silicate |
| B. | Di-calcium silicate |
| C. | Tricalcium aluminate |
| D. | Tetra calcium alumina ferrite. |
| Answer» B. Di-calcium silicate | |
| 507. |
For slaking of 10 kg of CaO, the theoretical amount of water is |
| A. | 2.2 kg |
| B. | 1.5 kg |
| C. | 3.2 kg |
| D. | None of these. |
| Answer» C. 3.2 kg | |
| 508. |
Bessemer process is used for the manufacture of |
| A. | Pig iron |
| B. | cast iron |
| C. | Wrought iron |
| D. | Steel. |
| Answer» D. Steel. | |
| 509. |
The portion of the brick without a triangular corner equal to half the width and half the length, is called |
| A. | closer |
| B. | queen closer |
| C. | king closer |
| D. | Squint brick. |
| Answer» C. king closer | |
| 510. |
The standard size of masonry bricks, is |
| A. | 18 cm x 8 cm x 8 cm |
| B. | 19 cm x 9 cm x 9 cm |
| C. | 20 cm x 10 cm x 10 cm |
| D. | 21 cm x 11 cm x 11 cm |
| Answer» B. 19 cm x 9 cm x 9 cm | |
| 511. |
A good quality stone absorbs water less than |
| A. | 5% |
| B. | 10% |
| C. | 15% |
| D. | 20% |
| Answer» A. 5% | |
| 512. |
Plywood is made from |
| A. | common timber |
| B. | bamboo fibre |
| C. | teak wood only |
| D. | all of above |
| Answer» C. teak wood only | |
| 513. |
If the iron ore contains clay as an impurity, the flux added during calcination, is |
| A. | clay |
| B. | lime stone |
| C. | argillaceous iron ore |
| D. | all the above. |
| Answer» B. lime stone | |
| 514. |
Cast steel is manufactured by |
| A. | Cementation process |
| B. | Crucible process |
| C. | Bessemer process |
| D. | Open hearth process. |
| Answer» B. Crucible process | |
| 515. |
1st class brick immersed in water for 24 hours, should not absorb water (by weight) more |
| A. | 10% |
| B. | 15% |
| C. | 20% |
| D. | 25% |
| Answer» C. 20% | |
| 516. |
Geologically, marble is known as |
| A. | sedimentary rock |
| B. | igneous rock |
| C. | metamorphic rock |
| D. | Stratified rock. |
| Answer» C. metamorphic rock | |
| 517. |
The commonly used drying oil for oil paints, is |
| A. | olive oil |
| B. | linseed oil |
| C. | kerosene oil |
| D. | accetate of lead. |
| Answer» D. accetate of lead. | |
| 518. |
The foliated structure is very common in |
| A. | sedimentary rocks |
| B. | igneous rocks |
| C. | metamorphic rocks |
| D. | none of these. |
| Answer» C. metamorphic rocks | |
| 519. |
Turpentine oil is used in paints as |
| A. | thinner |
| B. | vehicle |
| C. | base |
| D. | drier. |
| Answer» A. thinner | |
| 520. |
The hardest rock is |
| A. | marble |
| B. | diamond |
| C. | talc |
| D. | Quartz. |
| Answer» B. diamond | |
| 521. |
The silica is used for preparing |
| A. | silica bricks |
| B. | coke oven |
| C. | lining for glass furnaces |
| D. | All of these. |
| Answer» D. All of these. | |
| 522. |
Fibre boards can be |
| A. | distempered |
| B. | painted |
| C. | painted and distempered |
| D. | Used for furniture. |
| Answer» D. Used for furniture. | |
| 523. |
Pick up the correct statement from the following |
| A. | Catalysts are added to assist and accelerate the hardening of resin, |
| B. | The fillers are inert materials and they impart strength and hardness |
| C. | Fibrous fillers increase thermal resistance |
| D. | All the above. |
| Answer» D. All the above. | |
| 524. |
Formula for quick lime, is |
| A. | CaCO3 |
| B. | CaO |
| C. | CO3CO2 |
| D. | None to these. |
| Answer» B. CaO | |
| 525. |
For the manufacture of stainless steel, steel is mixed with |
| A. | chromium |
| B. | nickel |
| C. | tungsten |
| D. | None of these. |
| Answer» A. chromium | |
| 526. |
Stones used for ornamental work must be |
| A. | soft |
| B. | hard |
| C. | light |
| D. | heavy. |
| Answer» A. soft | |
| 527. |
The operation of removal of impurities or clay adhering to iron ores, is known as |
| A. | dressing |
| B. | calcination |
| C. | roasting |
| D. | smelting. |
| Answer» A. dressing | |
| 528. |
If water required for 1 bag of cement is 30 liters, the water cement ratio is |
| A. | 0.40 |
| B. | 0.50 |
| C. | 0.60 |
| D. | None of these. |
| Answer» C. 0.60 | |
| 529. |
Portland cement manufactured from pure white chalk and clay, free from iron-oxide, known as |
| A. | quick setting cement |
| B. | rapid hardening cement |
| C. | white cement |
| D. | low heat Portland cement. |
| Answer» C. white cement | |
| 530. |
Dry rot |
| A. | cracks the timber |
| B. | reduces the strength of timber |
| C. | reduces the timber to powder |
| D. | shrinks the timber |
| Answer» C. reduces the timber to powder | |
| 531. |
Which one of the following polymers is obtained from condensation polymerization ? |
| A. | phenol formaldehyde |
| B. | carbamide |
| C. | melamine-formaldehyde |
| D. | all of these. |
| Answer» D. all of these. | |
| 532. |
The weight of 1 m3 of brick earth, is about |
| A. | 1200 kg |
| B. | 1500 kg |
| C. | 1800 kg |
| D. | 2000 kg. |
| Answer» C. 1800 kg | |
| 533. |
Pozzolana (or surkhi) is used in lime |
| A. | to impart hydraulicity |
| B. | to prevent shrinkage |
| C. | to decrease the cost of construction |
| D. | to decrease the setting time. |
| Answer» A. to impart hydraulicity | |
| 534. |
Mastic asphalt is normally used for |
| A. | sound insulation |
| B. | water proofing |
| C. | fire proofing |
| D. | none to these. |
| Answer» B. water proofing | |
| 535. |
Lime stone is not a |
| A. | sedimentary rock |
| B. | stratified rock |
| C. | aqueous rock |
| D. | metamorphic rock. |
| Answer» D. metamorphic rock. | |
| 536. |
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. | |
| 537. |
Pig iron is manufactured from the ores by |
| A. | dressing |
| B. | calcination and roasting |
| C. | smelting |
| D. | all the above. |
| Answer» D. all the above. | |
| 538. |
The maximum permissible colour for domestic supplies based on cobalt scale, is |
| A. | 5 ppm |
| B. | 10 ppm |
| C. | 15 ppm |
| D. | 20 ppm |
| Answer» D. 20 ppm | |
| 539. |
The portion of a brick cut to form angles other than right angles in plan, is known as |
| A. | queen closer |
| B. | king closer |
| C. | closer |
| D. | squint brick. |
| Answer» D. squint brick. | |
| 540. |
Plywood is obtained by gluing wooden sheets at |
| A. | 100 to 150 N/cm2 |
| B. | 100 to 130°C |
| C. | both (a) and (b) |
| D. | Neither (a) nor (b). |
| Answer» C. both (a) and (b) | |
| 541. |
The low voltage porcelain is mainly used for |
| A. | switch block |
| B. | insulating tubes |
| C. | lamp sockets |
| D. | All of these. |
| Answer» D. All of these. | |
| 542. |
Putty is |
| A. | made with finely powdered chalk and linseed oil |
| B. | used for fixing glass panes |
| C. | softened by a solution of pearl ash and quick-lime soaked in water |
| D. | all the above. |
| Answer» D. all the above. | |
| 543. |
PVC stands for |
| A. | plastic very compact |
| B. | polythene vinyl chloride |
| C. | polythene vinyl carbon |
| D. | polythene vanadium carbide. |
| Answer» B. polythene vinyl chloride | |
| 544. |
Generally wooden mounds are made from |
| A. | ply wood |
| B. | shisham wood |
| C. | deodar wood |
| D. | teak wood |
| Answer» B. shisham wood | |
| 545. |
The cement becomes unsound by the presence of excess |
| A. | sulphur |
| B. | magnesia |
| C. | lime |
| D. | All of these. |
| Answer» D. All of these. | |
| 546. |
A volatile substance added to a paint to make its application easy and smooth, is known as |
| A. | base |
| B. | solvent |
| C. | vehicle |
| D. | none to these. |
| Answer» B. solvent | |
| 547. |
The main ingredient of a good quality brick earth, is |
| A. | magnesia |
| B. | lime |
| C. | silica |
| D. | Alumina. |
| Answer» D. Alumina. | |
| 548. |
Bitumen is generally obtained from |
| A. | organic material |
| B. | synthetic material |
| C. | petroleum product |
| D. | coal. |
| Answer» C. petroleum product | |
| 549. |
The steel which contains fissures and cavities, is manufactured by |
| A. | Cementation process |
| B. | Crucible process |
| C. | Bessemer process |
| D. | Open hearth process. |
| Answer» A. Cementation process | |
| 550. |
Pick up the volcanic rock from the following |
| A. | Granite |
| B. | Dolerite |
| C. | Basalt |
| D. | All the above. |
| Answer» C. Basalt | |
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