McqMate
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 |
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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