McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 551. |
In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is |
| A. | right angles |
| B. | 45° |
| C. | 60° |
| D. | parallel |
| Answer» A. right angles | |
| 552. |
Softer variety of steel may be obtained by |
| A. | Cementation process |
| B. | crucible process |
| C. | Bessemer process |
| D. | Open hearth process. |
| Answer» C. Bessemer process | |
| 553. |
Strength of cement concrete primarily depends upon |
| A. | quality of water |
| B. | quantity of aggregate |
| C. | quantity of cement |
| D. | Water-cement ratio. |
| Answer» D. Water-cement ratio. | |
| 554. |
Rapid hardening cement contains |
| A. | Tri-calcium silicate |
| B. | Tri-calcium aluminate |
| C. | Tetra-calcium alumino-ferrite |
| D. | Dicalcium silicate. |
| Answer» A. Tri-calcium silicate | |
| 555. |
Bitumen emulsion is |
| A. | a liquid containing bitumen in suspension |
| B. | a paint |
| C. | used as anti-corrosive paint |
| D. | all the above. |
| Answer» D. all the above. | |
| 556. |
Jhumb bricks are |
| A. | under burnt |
| B. | over burnt |
| C. | kutcha |
| D. | none of these. |
| Answer» B. over burnt | |
| 557. |
Plastic bitumen is generally used for |
| A. | road pavements |
| B. | expansion joints |
| C. | crack fillings |
| D. | None to these. |
| Answer» C. crack fillings | |
| 558. |
The commonly used thinner in oil paints, is |
| A. | naptha |
| B. | turpentine |
| C. | both (a) and (b) |
| D. | neither (a) nor (b) |
| Answer» C. both (a) and (b) | |
| 559. |
In a rock calcium carbonate predominates. State whether it is |
| A. | Sillicious rock |
| B. | Argillaceous rock |
| C. | Calcareous rock |
| D. | None of these. |
| Answer» C. Calcareous rock | |
| 560. |
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%. | |
| 561. |
The stones obtained by blasting are used as |
| A. | ballast in railways |
| B. | aggregates for concrete |
| C. | Road metal |
| D. | All the above. |
| Answer» D. All the above. | |
| 562. |
Distemper is |
| A. | a paint consisting of powdered chalk, pigments, and water |
| B. | a water proofing agent |
| C. | a paint consisting of coloured cement and water |
| D. | a drying agent. |
| Answer» A. a paint consisting of powdered chalk, pigments, and water | |
| 563. |
Pick up the correct statement from the following |
| A. | The average crushing strength of hand moulded bricks is 6000 t/m2 |
| B. | The average tensile strength of hand moulded brick is 200 t/m2 |
| C. | The average shearing strength of hand moulded brick is 600 t/m2 |
| D. | All the above. |
| Answer» D. All the above. | |
| 564. |
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 | |
| 565. |
Sea sand used in structures causes |
| A. | dampness |
| B. | efflorescence |
| C. | disintegration |
| D. | All of these. |
| Answer» D. All of these. | |
| 566. |
Refractory bricks resist |
| A. | high temperature |
| B. | chemical action |
| C. | dampness |
| D. | all the above. |
| Answer» A. high temperature | |
| 567. |
When a brick is immersed in water for 24 hours and then dried, if |
| A. | no grey or white deposits appear on the surface, the brick is free from soluble salts |
| B. | 10 per cent surface is covered with grey or white deposits, the brick has slight efflorescence |
| C. | 50 per cent surface is covered with grey or white deposits, the brick has serious efflorescence |
| D. | All the above. |
| Answer» D. All the above. | |
| 568. |
In arches, stratified stones are placed so that their planes are |
| A. | parallel |
| B. | perpendicular |
| C. | radial |
| D. | none of these. |
| Answer» C. radial | |
| 569. |
The fire clay contains pure |
| A. | lime |
| B. | oxide of iron |
| C. | hydrated aluminum silicate |
| D. | Magnesium. |
| Answer» C. hydrated aluminum silicate | |
| 570. |
The steel used for rails under heavy traffic and on sharp curves, is |
| A. | Nickel steel |
| B. | Chrome steel |
| C. | Magnese steel |
| D. | Vanadium steel. |
| Answer» C. Magnese steel | |
| 571. |
Oil varnish generally consists of |
| A. | synthetic resin and spirit |
| B. | oil, wax and resin |
| C. | resin, oil and turpentine |
| D. | spirit, oil and wax. |
| Answer» C. resin, oil and turpentine | |
| 572. |
The cracks which extend from bark towards the sap wood in the cross section of a tree, are |
| A. | radial shakes |
| B. | star shakes |
| C. | heart shakes |
| D. | cup shakes. |
| Answer» B. star shakes | |
| 573. |
The compound of Portland cement which reacts immediately with water and sets first is |
| A. | Tri-calcium silicate |
| B. | Di-calcium silicate |
| C. | Tri-calcium aluminate |
| D. | Tetra calcium alumino ferrite. |
| Answer» C. Tri-calcium aluminate | |
| 574. |
The fire clay contains pure |
| A. | lime |
| B. | oxide of iron |
| C. | hydrated aluminium silicate |
| D. | magnesium. |
| Answer» D. magnesium. | |
| 575. |
The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called |
| A. | Plutonic rocks |
| B. | Hypabyssal rocks |
| C. | Volcanic rocks |
| D. | Igneous rocks. |
| Answer» B. Hypabyssal rocks | |
| 576. |
The base material for distemper, is |
| A. | chalk |
| B. | lime |
| C. | lime putty |
| D. | Cement wash. |
| Answer» A. chalk | |
| 577. |
The thermosetting plastic |
| A. | becomes rigid when moulded at suitable pressure and temperature |
| B. | at 127°C to 177°C permanently set and further application of heat does not soften it |
| C. | charrs at 343°C |
| D. | All the above. |
| Answer» D. All the above. | |
| 578. |
Slacking of lime is affected by |
| A. | keeping it exposed to air |
| B. | immersing the lime in water |
| C. | crushing the lime lumps |
| D. | none of these. |
| Answer» B. immersing the lime in water | |
| 579. |
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 | |
| 580. |
Mastic asphalt is |
| A. | water proof |
| B. | fire proof |
| C. | elastic |
| D. | all the above. |
| Answer» D. all the above. | |
| 581. |
Stones used for the construction of retaining walls must be |
| A. | soft |
| B. | hard |
| C. | light |
| D. | heavy. |
| Answer» D. heavy. | |
| 582. |
Plastics are compounds of carbon with element |
| A. | hydrogen |
| B. | nitrogen |
| C. | oxygen |
| D. | All of these. |
| Answer» D. All of these. | |
| 583. |
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» A. Alumina | |
| 584. |
Cast iron is used for |
| A. | structural works in beams |
| B. | small sized water pipes |
| C. | columns and struts |
| D. | none to these. |
| Answer» C. columns and struts | |
| 585. |
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. | |
| 586. |
The most important constituent of varnish, is |
| A. | drier |
| B. | solvent |
| C. | resin |
| D. | all the above. |
| Answer» D. all the above. | |
| 587. |
A ferrous metal is |
| A. | cast iron |
| B. | wrought iron |
| C. | steel |
| D. | all the above. |
| Answer» D. all the above. | |
| 588. |
For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is |
| A. | 80 : 13 : 7 |
| B. | 70 : 20 : 10 |
| C. | 60 : 35 : 5 |
| D. | none of these. |
| Answer» A. 80 : 13 : 7 | |
| 589. |
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» D. to remove water. | |
| 590. |
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 | |
| 591. |
The tendency of a stone is, to split along |
| A. | texture |
| B. | fracture |
| C. | cleavage |
| D. | structure |
| Answer» C. cleavage | |
| 592. |
Acrylic is the name of |
| A. | cellulose resin |
| B. | alkyd resin |
| C. | methyl metha crylate |
| D. | cumarone-indene. |
| Answer» C. methyl metha crylate | |
| 593. |
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. | |
| 594. |
The most dangerous pollutant in vehicular emissions is |
| A. | CO |
| B. | SO2 |
| C. | CO2 |
| D. | O3. |
| Answer» A. CO | |
| 595. |
Steel contains carbon approximately |
| A. | 1.50% to 5.6% |
| B. | 0.05% to 1.75% |
| C. | 0.25% |
| D. | none to these. |
| Answer» B. 0.05% to 1.75% | |
| 596. |
Cast iron contains carbon approximately |
| A. | 1.5% to 5.5% |
| B. | 0.05% to 1.75% |
| C. | 0.250% |
| D. | none to these. |
| Answer» A. 1.5% to 5.5% | |
| 597. |
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 | |
| 598. |
Good quality cement contains higher percentage of |
| A. | Tricalcium silicate |
| B. | Di-calcium silicate |
| C. | Tri-calcium aluminate |
| D. | Tetra calcium alumino ferrite |
| Answer» A. Tricalcium silicate | |
| 599. |
The softest rock is |
| A. | marble |
| B. | diamond |
| C. | talc |
| D. | quartz. |
| Answer» C. talc | |
| 600. |
Mild steel is used for |
| A. | structural works in beams, joints and girders |
| B. | small sized water pipes |
| C. | columns and struts |
| D. | none of these. |
| Answer» A. structural works in beams, joints and girders | |
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