Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
A pump-house specification calls for common burnt-clay building bricks of a defined strength class. Delivered bricks have a uniform appearance, but their class and conformity records are unavailable. Which acceptance decision is most defensible?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Appearance alone does not establish the engineering quality of burnt-clay bricks. A specified brick class is associated with defined strength requirements. The applicable IS 1077 edition also addresses relevant dimensions and physical properties. The supplied material should be verified using the required documentation and appropriate sampling or tests. Bricks that do not meet the project specification should not be accepted merely because they look satisfactory.
వివరణ:
Question 2
ప్రశ్న 2
At a masonry site, highly absorbent burnt-clay bricks are being laid completely dry, and the mortar rapidly loses moisture where it contacts the bricks. What is the appropriate corrective action?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Very dry absorbent bricks can draw water rapidly from fresh masonry mortar. Excessive suction may impair workability and the development of adhesion at the interface. Appropriate pre-wetting helps control this loss of water. Bricks should be allowed to reach a suitable surface condition rather than being laid dripping wet. The procedure must remain consistent with the brick type and the applicable workmanship specification.
వివరణ:
Question 3
ప్రశ్న 3
A batch of burnt-clay bricks has been soaked for masonry work, but water is visibly dripping from their surfaces when the mason begins laying them. Which response best follows sound workmanship practice?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Bricks used in cement-mortar masonry should not be excessively dry or excessively wet. Dripping surface water can interfere with consistent bedding and adhesion. Allowing the bricks to drain helps produce the intended laying condition. Adding dry cement to wet brick surfaces is not a substitute for proper preparation. The brick moisture condition should be controlled before the course is laid.
వివరణ:
Question 4
ప్రశ్న 4
A cement mortar is specified as 1:5 by volume, meaning one part cement to five parts dry sand. For a simplified batching exercise, exactly 0.72 m3 of combined DRY ingredient volumes is required, and no volume-change allowance is to be used. What are the cement and sand volumes respectively?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
The specified 1:5 mix contains six total parts by volume. The total dry ingredient volume in this exercise is 0.72 m3. One part is therefore 0.72/6 = 0.12 m3. Cement occupies one part, or 0.12 m3, while sand occupies five parts, or 0.60 m3. These are ingredient batching volumes and must not be confused with the volume of finished wet mortar.
వివరణ:
Question 5
ప్రశ్న 5
A mason prepares specified cement-sand mortar by adding water to a heap of cement and sand before the dry materials are distributed uniformly. Which procedure is more appropriate for controlled mortar preparation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
The proportions of a masonry mortar must correspond to its specified mix. Uniform dry mixing helps distribute cement through the sand before water is added. A clean mechanical mixer or suitable watertight mixing platform reduces contamination and loss of materials. Water should then be added in a controlled manner to obtain workable mortar. Excess water or poor mixing can affect mortar consistency and masonry workmanship.
వివరణ:
Question 6
ప్రశ్న 6
A cement-mortar batch was prepared much earlier than required and has begun to stiffen because setting is underway. A worker proposes restoring its original workability by adding more water and using it in structural brickwork. What is the correct decision?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Cement-mortar workability decreases as hydration and setting progress. Adding water to a mortar that has begun setting does not return it to its original material condition. Such retempering can compromise the intended mortar quality and bond. Mortar batches should be sized for use within the applicable specified period. Material that has become unfit for laying should be replaced by properly prepared fresh mortar.
వివరణ:
Question 7
ప్రశ్న 7
A proposed load-bearing brick wall has vertical joints aligned continuously through many successive courses. Which construction modification most directly improves the specified masonry bond?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Masonry bond concerns the arrangement and interlocking of bricks in successive courses. Continuous aligned vertical joints may create planes of weakness in ordinary bonded brickwork. The specified bond should provide adequate lap and break the continuity of these joints. Properly filled mortar joints must accompany the brick arrangement. Increasing plaster thickness does not correct an improperly bonded masonry wall.
వివరణ:
Question 8
ప్రశ్న 8
An engineer specifies English bond for a conventional solid brick wall. Which description correctly identifies its principal arrangement?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
English bond is a recognized bond for conventional brick masonry. It generally consists of alternate header courses and stretcher courses. Closures at the corners help develop the required overlap of joints. The arrangement promotes continuity between adjoining portions of the wall. Uniform mortar bedding and correct line and level remain essential irrespective of the selected bond.
వివరణ:
Question 9
ప్రశ్న 9
Consider the following workmanship statements: (1) Bricks should be laid on a full mortar bed. (2) Vertical or cross joints should be adequately filled with mortar. (3) Very thick bed joints may be used routinely to conceal inaccurate course setting-out. Which statements are correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
A complete mortar bed helps ensure uniform support and adhesion beneath each brick. Properly filled vertical joints contribute to bond and resistance to moisture penetration. Excessively thick bed joints should not be used to compensate for poor setting-out. The specified joint thickness and course gauge need to be maintained. Hence the first two statements are correct and the third is not.
వివరణ:
Question 10
ప్రశ్న 10
A brickwork specification requires nominal 10 mm horizontal bed joints. On inspection, the mason has repeatedly formed joints around 18 mm thick to correct uneven courses. What should the supervising engineer require?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Mortar bed thickness is an important aspect of brickwork quality. Repeatedly excessive joints can affect the intended course geometry and masonry performance. The specified thickness should be maintained through accurate gauging and proper brick selection. Nonconforming work should be assessed and corrected under the applicable acceptance procedure. Merely changing the measurement record does not remedy poor workmanship.
వివరణ:
Question 11
ప్రశ్న 11
Under the brickwork practice described in IS 2212, a freshly built wall will later receive cement plaster rather than exposed-face pointing. Which joint preparation is appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Plaster requires adequate adhesion to the supporting masonry. Raking face joints while the mortar is green provides a mechanical key for the plaster coat. IS 2212 describes raking to about 10 mm for subsequent plastering. Loose mortar splashes and debris should also be removed from the face. The brickwork still requires fully filled structural joints behind the raked surface.
వివరణ:
Question 12
ప్రశ్న 12
A brick wall face will remain exposed and receive a separately specified pointed joint finish. Under the brickwork practice in IS 2212, which joint preparation is appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Pointing is a deliberate finishing treatment for the exposed mortar joints. IS 2212 describes raking such joints to a depth of about 15 mm while the mortar is still green. The prepared joints should be brushed to remove dust and loose material. They are then wetted and refilled with the specified pointing mortar to achieve the required finish. This procedure differs from the shallower raking used to provide a key for later plastering.
వివరణ:
Question 13
ప్రశ్న 13
Brickwork at a wall corner shows poorly interlocked quoins and persistent near-continuous vertical joints. Which corrective practice most directly addresses the defect?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Quoins are corners where adjoining masonry faces must be tied together effectively. Incorrect brick arrangements at quoins can produce poorly bonded wall intersections. Properly placed headers, stretchers and closures develop the required pattern for the selected bond. The corners should be checked for alignment and level as the work rises. Additional render cannot substitute for a soundly interlocked brick corner.
వివరణ:
Question 14
ప్రశ్న 14
A vertical wall gauge is formed by FOUR brick courses made with bricks having ACTUAL height 65 mm each. Exactly THREE horizontal mortar joints lie between the four courses, and each joint is specified as 10 mm thick. What is the overall height from the bottom of the first brick to the top of the fourth brick?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
The four bricks contribute 4 x 65 = 260 mm of height. The question explicitly includes only three horizontal joints between them. Those joints contribute 3 x 10 = 30 mm. Adding brick heights and joint thicknesses gives 260 + 30 = 290 mm. The measurement is based on the stated brick heights and number of joints rather than an assumed nominal course dimension.
వివరణ:
Question 15
ప్రశ్న 15
A rectangular brick masonry wall is 7.50 m long, 3.00 m high and 0.23 m thick. It has one full-thickness doorway measuring 1.20 m by 2.00 m. For this calculation deduct the FULL opening volume and make no other additions or deductions. What is the net masonry volume before rounding?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
The gross wall volume is 7.50 x 3.00 x 0.23 = 5.175 m3. The doorway has a face area of 1.20 x 2.00 = 2.40 m2. Its full through-wall volume is 2.40 x 0.23 = 0.552 m3. Subtracting the specified deduction gives 5.175 - 0.552 = 4.623 m3. The question states the deduction rule explicitly so no unstated measurement threshold is required.
వివరణ:
Question 16
ప్రశ్న 16
During laying of a long brick wall, the wall faces appear straight from a distance but individual courses drift out of level and the end portion is out of plumb. What site checks should be emphasized?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Accurate masonry requires control of horizontal alignment, verticality and course levels. A line helps maintain straightness of successive brick courses. A plumb check identifies departure from the intended wall vertical. Levels and course-gauge measurements reveal accumulating height errors. Regular inspection allows incorrect work to be corrected before further courses conceal the defect.
వివరణ:
Question 17
ప్రశ్న 17
Construction of one portion of a brick wall must pause while adjoining masonry will be continued later. There is no approved movement joint at the location. Which temporary termination best assists subsequent bonding?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
An abrupt unbonded termination can create a weak connection when masonry is resumed. Racking back provides a stepped arrangement that allows new work to interlock with existing courses. The arrangement must follow the selected brick bond and intended construction sequence. Any approved movement or separation joint would require different treatment. In the absence of such a joint, the unfinished work should be prepared for proper continuation.
వివరణ:
Question 18
ప్రశ్న 18
A contractor beds good-quality bricks in mortar but intentionally leaves many vertical head joints empty to save mortar. What is the primary engineering objection?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
A full mortar bed does not compensate for the omission of vertical head-joint mortar. Properly packed joints contribute to continuity between adjoining bricks. Open joints can also provide routes for unwanted water and air movement. Masonry specifications generally require bed and cross joints to be filled appropriately. The defective jointing should therefore be corrected rather than accepted as a material-saving measure.
వివరణ:
Question 19
ప్రశ్న 19
Fresh cement-mortar brick masonry is exposed to hot, dry winds. The applicable project specification requires moist curing for at least seven days. Which site procedure best satisfies the requirement?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Cement mortar requires suitable moisture conditions for hydration and strength development. Hot winds can cause premature drying of freshly constructed masonry. The stated specification requires a minimum moist-curing period of seven days. Appropriate wetting and protection should be arranged without damaging fresh mortar joints. The site supervisor should monitor compliance with the required curing period.
వివరణ:
Question 20
ప్రశ్న 20
A project requires fair-faced brickwork to remain exposed without plaster, and the proposed single scaffolding would leave many putlog holes in the completed brick face. What is the most appropriate decision?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Scaffolding should provide safe working access and adequate load capacity. Single scaffolding can require holes or supports within the masonry face. Such holes can be undesirable where the finished brickwork remains exposed. Properly designed independent scaffolding may reduce damage to the completed face. The chosen arrangement must meet construction-safety requirements as well as workmanship needs.
వివరణ:
Question 21
ప్రశ్న 21
A thin brick partition is being constructed to meet an existing thicker masonry wall at a T-junction. The drawing requires the partition to be structurally connected rather than separated by a movement joint. Which practice is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
A partition meeting another wall requires the connection intended by the design. Direct butt contact without the specified connection may not provide sufficient restraint or continuity. Appropriate bonding, indents or approved ties can provide the intended mechanical connection. The exact solution depends on whether the new and existing walls can be toothed or otherwise anchored. The work must also preserve the required line, level and joint filling at the junction.
వివరణ:
Question 22
ప్రశ్న 22
Inspection finds that mortar splashes and dust remain on masonry faces just before plastering. The joints have been raked to the specified depth. Which action best completes the surface preparation?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Raked joints can improve the mechanical key for subsequent plastering. However, mortar splashes, dust and loose particles can impair adhesion to the masonry face. The surface should be cleaned before the next finish is applied. Suitable dampening can help prevent excessive suction from the fresh plaster mortar. The final preparation must comply with the approved plastering specification.
వివరణ:
Question 23
ప్రశ్న 23
White salt deposits develop repeatedly on exposed burnt-clay brickwork shortly after wet weather. Which response most appropriately addresses the underlying issue?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
White crystalline deposits on brickwork may indicate efflorescence. Soluble salts can migrate through porous masonry with moving moisture. The underlying moisture source and material quality should be investigated rather than concealed. Cleaning alone may be ineffective if water continues to carry salts to the surface. A durable response addresses the cause and uses a repair method compatible with the masonry.
వివరణ:
Question 24
ప్రశ్న 24
An opening in a masonry wall is shown as 1.20 m wide in the approved architectural plan but 1.50 m wide in the coordinated door schedule. The mason is about to build its jambs and associated bond. What should the supervising engineer do?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Doorway dimensions influence brick cutting, jamb geometry, lintel provision and adjacent bond. Conflicting project documents must be reconciled before affected masonry is constructed. Selecting an arbitrary dimension can cause rework and incompatible building components. The approved clarification should be reflected in the setting-out and measurement records. The resulting opening and surrounding masonry should then be built to the verified line and level.
వివరణ:
Question 25
ప్రశ్న 25
A detailed estimate includes two brick-masonry portions of equal measured volume, but one requires exposed facework with pointing and the other will be plastered. The brick types, mortar specifications and rate inclusions are not identical. Which treatment is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
Brick-masonry quantity alone does not describe every requirement of the work. Brick type, mortar, exposed facing and subsequent finishes can alter the scope of an item. Work with different specifications may therefore require different item descriptions or rates. The estimator must check whether pointing or plastering is already included in the masonry rate. Correct separation prevents omissions and duplicate costing while preserving traceability to the drawings.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: B. Check conformity with the specified brick class and applicable IS 1077 requirements through records and necessary sampling or tests before acceptance. సమాధానం: B.
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Question 2 ప్రశ్న 2Answer: D. Pre-wet or soak the bricks appropriately and allow surface water to drain before laying them in fresh mortar. సమాధానం: D.
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Question 3 ప్రశ్న 3Answer: A. Allow excess surface water to drain so the bricks are suitably damp but not dripping when laid. సమాధానం: A.
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Question 4 ప్రశ్న 4Answer: C. 0.120 m3 cement and 0.600 m3 sand. సమాధానం: C.
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Question 5 ప్రశ్న 5Answer: B. Measure the specified ingredients, mix cement and sand uniformly in the dry state, then add clean water and mix to the required workable consistency. సమాధానం: B.
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Question 6 ప్రశ్న 6Answer: D. Reject mortar that has exceeded the permitted usable period or begun setting, and prepare a fresh compliant batch. సమాధానం: D.
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Question 7 ప్రశ్న 7Answer: C. Adopt the specified bond with proper overlapping of bricks so vertical joints are broken between successive courses. సమాధానం: C.
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Question 8 ప్రశ్న 8Answer: A. Successive courses alternate between headers and stretchers, with suitable closures used to maintain the bond at corners. సమాధానం: A.
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Question 9 ప్రశ్న 9Answer: B. (1) and (2) only. సమాధానం: B.
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Question 10 ప్రశ్న 10Answer: C. Correct the laying procedure and nonconforming work as required, controlling brick selection, course gauge and the specified joint thickness. సమాధానం: C.
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Question 11 ప్రశ్న 11Answer: D. Rake the face joints squarely to approximately 10 mm while the mortar is green, then clean the surface for subsequent plastering. సమాధానం: D.
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Question 12 ప్రశ్న 12Answer: A. Rake the face joints to about 15 mm while the mortar is green, then clean, wet and refill them with the specified pointing mortar. సమాధానం: A.
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Question 13 ప్రశ్న 13Answer: C. Rebuild or correct the affected corner with properly arranged quoin bricks, suitable closures and the specified lap between courses. సమాధానం: C.
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Question 14 ప్రశ్న 14Answer: B. 290 mm. సమాధానం: B.
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Question 15 ప్రశ్న 15Answer: D. 4.623 m3. సమాధానం: D.
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Question 16 ప్రశ్న 16Answer: A. Use a taut line, plumb rule or bob, level and course-gauge checks regularly while correcting the affected laying work. సమాధానం: A.
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Question 17 ప్రశ్న 17Answer: B. Rack the unfinished masonry back in suitable steps according to the bond, rather than leaving an inadequately connected vertical end. సమాధానం: B.
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Question 18 ప్రశ్న 18Answer: C. Unfilled head joints reduce continuity and can create paths for moisture penetration, so the joints should be properly packed with mortar. సమాధానం: C.
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Question 19 ప్రశ్న 19Answer: D. Protect the fresh work from rapid drying and maintain adequate moisture on accessible faces for the specified curing period. సమాధానం: D.
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Question 20 ప్రశ్న 20Answer: A. Consider properly designed independent double scaffolding that provides safe access without avoidable damage to the exposed face. సమాధానం: A.
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Question 21 ప్రశ్న 21Answer: C. Provide the specified approved bond, indent, tie or anchorage arrangement so the junction transfers forces as intended. సమాధానం: C.
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Question 22 ప్రశ్న 22Answer: D. Brush and clean the surface, remove loose particles and appropriately dampen it before applying the specified plaster. సమాధానం: D.
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Question 23 ప్రశ్న 23Answer: B. Investigate soluble salts and moisture movement, then correct relevant material or water-entry problems before selecting an appropriate cleaning or repair method. సమాధానం: B.
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Question 24 ప్రశ్న 24Answer: A. Resolve the drawing conflict through the approved design clarification process before fixing the opening dimensions and laying its jambs. సమాధానం: A.
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Question 25 ప్రశ్న 25Answer: C. Use separately described quantities and applicable rates, checking whether face finishing, pointing or plastering is included or separately payable. సమాధానం: C.