Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
What is the principal engineering purpose of dressing a quarried building stone?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Stone obtained directly from a quarry commonly has irregular projections, edges and surfaces that are unsuitable for accurate masonry or architectural work.
• Dressing removes unwanted material and gives the stone the required dimensions, shape, beds, joints and exposed-face finish.
• The required degree of dressing depends on whether the stone is intended for rubble masonry, ashlar work, flooring, cladding, moulding or ornamental construction.
• Dressing can also help obtain better fitting units and more regular mortar joints.
• Therefore Option B correctly describes the fundamental purpose of stone dressing.
• Dressing removes unwanted material and gives the stone the required dimensions, shape, beds, joints and exposed-face finish.
• The required degree of dressing depends on whether the stone is intended for rubble masonry, ashlar work, flooring, cladding, moulding or ornamental construction.
• Dressing can also help obtain better fitting units and more regular mortar joints.
• Therefore Option B correctly describes the fundamental purpose of stone dressing.
వివరణ:
Question 2
ప్రశ్న 2
Which description most accurately corresponds to a hammer-dressed stone surface?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Hammer dressing is a comparatively rough form of dressing used to remove major irregularities and make a stone suitable for masonry.
• A hammer-dressed stone should not retain sharp and irregular corners that prevent close and proper fitting with neighbouring units.
• The resulting face is comparatively even but remains substantially rougher than fine-tooled or polished work.
• It is therefore appropriate for masonry where accurate high-grade architectural finishing is unnecessary.
• Hence Option C correctly describes a hammer-dressed surface.
• A hammer-dressed stone should not retain sharp and irregular corners that prevent close and proper fitting with neighbouring units.
• The resulting face is comparatively even but remains substantially rougher than fine-tooled or polished work.
• It is therefore appropriate for masonry where accurate high-grade architectural finishing is unnecessary.
• Hence Option C correctly describes a hammer-dressed surface.
వివరణ:
Question 3
ప్రశ్న 3
Under the CPWD stone-work specification, bushing on a hammer-dressed face shall not project more than 40 mm on an exposed face and 10 mm on a face to be plastered. A stone has 32 mm bushing on its exposed face and 14 mm on its plastered face. What is the correct assessment?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The specified maximum bushing on an exposed hammer-dressed face is 40 mm.
• The measured projection of 32 mm on the exposed face is therefore within the stated requirement.
• The corresponding maximum for a face to be plastered is only 10 mm.
• The measured 14 mm projection exceeds this limit by 4 mm.
• Consequently only the face to be plastered fails the stated specification, making Option C correct.
• The measured projection of 32 mm on the exposed face is therefore within the stated requirement.
• The corresponding maximum for a face to be plastered is only 10 mm.
• The measured 14 mm projection exceeds this limit by 4 mm.
• Consequently only the face to be plastered fails the stated specification, making Option C correct.
వివరణ:
Question 4
ప్రశ్న 4
Which feature most clearly distinguishes a rock-faced stone from a uniformly tooled stone surface?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Rock-facing deliberately retains the rugged character of the central portion of the stone face.
• Dimensional and visual control is provided by accurately dressed margins around the perimeter.
• These margins define the edges while the central face remains comparatively rough and projecting.
• A uniformly tooled surface, in contrast, is worked over substantially the entire exposed face.
• Therefore Option A correctly identifies the defining feature of rock-faced work.
• Dimensional and visual control is provided by accurately dressed margins around the perimeter.
• These margins define the edges while the central face remains comparatively rough and projecting.
• A uniformly tooled surface, in contrast, is worked over substantially the entire exposed face.
• Therefore Option A correctly identifies the defining feature of rock-faced work.
వివరణ:
Question 5
ప్రశ్న 5
Under the CPWD specification, a rock-faced stone shall have a minimum 25 mm wide chisel-drafted margin at all four edges. Which stone satisfies this requirement?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The minimum requirement applies separately to every edge of the rock-faced stone.
• Each chisel-drafted margin must therefore be at least 25 mm wide.
• Option B gives widths of 25, 25, 27 and 30 mm, so all four margins satisfy the requirement.
• Every other option contains at least one edge whose margin is less than 25 mm.
• Hence Option B is the only fully compliant set.
• Each chisel-drafted margin must therefore be at least 25 mm wide.
• Option B gives widths of 25, 25, 27 and 30 mm, so all four margins satisfy the requirement.
• Every other option contains at least one edge whose margin is less than 25 mm.
• Hence Option B is the only fully compliant set.
వివరణ:
Question 6
ప్రశ్న 6
What is meant by a chisel-drafted margin on a dressed stone?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A chisel-drafted margin is a narrow strip accurately dressed along an edge or around part of a stone face.
• It establishes a controlled line and plane that can define the finished boundaries of the stone.
• Conventional specifications describe such drafted margins as narrow bands produced with appropriate chiselling and punch dressing.
• They are especially important in rock-faced work and wherever true edges are required without finely dressing the entire central face.
• Therefore Option A correctly explains a chisel-drafted margin.
• It establishes a controlled line and plane that can define the finished boundaries of the stone.
• Conventional specifications describe such drafted margins as narrow bands produced with appropriate chiselling and punch dressing.
• They are especially important in rock-faced work and wherever true edges are required without finely dressing the entire central face.
• Therefore Option A correctly explains a chisel-drafted margin.
వివరణ:
Question 7
ప్రశ్న 7
Which tool-and-surface description correctly identifies a rough-tooled stone finish?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A rough-tooled surface is worked with a plane chisel in relatively broad bands.
• The resulting tool marks are approximately parallel and may be horizontal, vertical or inclined as specified.
• This treatment provides a reasonably regular plane face while leaving the tooling distinctly visible.
• A point chisel is associated with the finer close-picked operation, while abrasives are associated with rubbing and polishing.
• Therefore Option B correctly matches the tool and the resulting rough-tooled texture.
• The resulting tool marks are approximately parallel and may be horizontal, vertical or inclined as specified.
• This treatment provides a reasonably regular plane face while leaving the tooling distinctly visible.
• A point chisel is associated with the finer close-picked operation, while abrasives are associated with rubbing and polishing.
• Therefore Option B correctly matches the tool and the resulting rough-tooled texture.
వివరణ:
Question 8
ప్రశ్న 8
Under the CPWD specification for a rough-tooled stone surface, the gap between the surface and a straight edge shall not exceed 3 mm. A measured maximum gap is 4 mm. What is the correct conclusion?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The straight-edge test indicates how far the dressed surface departs from the required plane.
• For the stated rough-tooled finish, the maximum permitted gap is 3 mm.
• A measured gap of 4 mm exceeds this limit by 1 mm.
• The surface therefore requires additional dressing if it is to meet the stated requirement.
• Hence Option B is correct.
• For the stated rough-tooled finish, the maximum permitted gap is 3 mm.
• A measured gap of 4 mm exceeds this limit by 1 mm.
• The surface therefore requires additional dressing if it is to meet the stated requirement.
• Hence Option B is correct.
వివరణ:
Question 9
ప్రశ్న 9
Which statement correctly describes a punched-dressed stone surface?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Punched dressing is obtained by further working a rough stone surface with a punch chisel.
• The process reduces irregular projections and leaves a characteristic series of ridges or punch marks.
• It produces an even worked surface while still retaining an intentionally tooled texture.
• Polishing uses abrasives rather than a punch chisel and produces a fundamentally different finish.
• Therefore Option A correctly describes punched dressing.
• The process reduces irregular projections and leaves a characteristic series of ridges or punch marks.
• It produces an even worked surface while still retaining an intentionally tooled texture.
• Polishing uses abrasives rather than a punch chisel and produces a fundamentally different finish.
• Therefore Option A correctly describes punched dressing.
వివరణ:
Question 10
ప్రశ్న 10
Under the CPWD specification, the gap between a punched-dressed surface and a straight edge shall not exceed 3 mm. A stone gives a maximum gap of 2.7 mm. Which statement is correct?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The stated specification permits a maximum straight-edge gap of 3 mm for the punched-dressed surface.
• The measured gap of 2.7 mm is less than this maximum.
• The stone therefore satisfies this particular surface-evenness criterion.
• Compliance with this measurement does not by itself establish conformity with every dimensional, material or workmanship requirement.
• Hence Option B gives the correct interpretation.
• The measured gap of 2.7 mm is less than this maximum.
• The stone therefore satisfies this particular surface-evenness criterion.
• Compliance with this measurement does not by itself establish conformity with every dimensional, material or workmanship requirement.
• Hence Option B gives the correct interpretation.
వివరణ:
Question 11
ప్రశ్న 11
A punched stone is further worked with a point chisel until the ridges and remaining chisel marks become very small. What finish is being produced?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Close picking is a finer stage of dressing applied to an already punched surface.
• A point chisel is used to reduce the remaining ridges and coarse chisel marks.
• The resulting marks become very small and the face is finer and more regular than the original punched finish.
• The process is still a chisel dressing operation rather than abrasive polishing.
• Therefore the described finish is Close picked and Option C is correct.
• A point chisel is used to reduce the remaining ridges and coarse chisel marks.
• The resulting marks become very small and the face is finer and more regular than the original punched finish.
• The process is still a chisel dressing operation rather than abrasive polishing.
• Therefore the described finish is Close picked and Option C is correct.
వివరణ:
Question 12
ప్రశ్న 12
Under the CPWD specification, the straight-edge gap on a close-picked stone surface shall not exceed 1.5 mm. A measured gap is 1.8 mm. What is the correct assessment?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The tolerance in the question applies specifically to the close-picked category.
• The permitted maximum gap is 1.5 mm.
• The measured value of 1.8 mm exceeds the limit by 0.3 mm.
• A larger tolerance associated with a rougher finish cannot be substituted for the specified close-picked requirement.
• Therefore further dressing is required and Option B is correct.
• The permitted maximum gap is 1.5 mm.
• The measured value of 1.8 mm exceeds the limit by 0.3 mm.
• A larger tolerance associated with a rougher finish cannot be substituted for the specified close-picked requirement.
• Therefore further dressing is required and Option B is correct.
వివరణ:
Question 13
ప్రశ్న 13
Which description most accurately corresponds to a fine-tooled stone surface?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Fine tooling is a relatively refined stage of chisel dressing carried out after coarser surface preparation.
• A close-picked surface is further worked so that remaining projections are removed.
• The result is a fairly smooth and regular face while still retaining the character of a chisel-finished stone.
• Fine tooling is commonly associated with accurately finished ashlar work rather than rubble or quarry-faced construction.
• Hence Option B correctly describes the finish.
• A close-picked surface is further worked so that remaining projections are removed.
• The result is a fairly smooth and regular face while still retaining the character of a chisel-finished stone.
• Fine tooling is commonly associated with accurately finished ashlar work rather than rubble or quarry-faced construction.
• Hence Option B correctly describes the finish.
వివరణ:
Question 14
ప్రశ్న 14
Under the CPWD description of fine tooling, a dressed stone surface commonly has approximately how many fine tool lines per centimetre width, depending on stone hardness and the required fineness?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Fine tooling is intended to produce a closely worked and fairly smooth chisel finish.
• The CPWD description specifies approximately 3 to 4 tool lines per centimetre width.
• The exact appearance can vary with the hardness of the stone and the degree of fineness required.
• This density of fine chisel marks clearly distinguishes the finish from rough hammer dressing or rock-facing.
• Therefore Option B is correct.
• The CPWD description specifies approximately 3 to 4 tool lines per centimetre width.
• The exact appearance can vary with the hardness of the stone and the degree of fineness required.
• This density of fine chisel marks clearly distinguishes the finish from rough hammer dressing or rock-facing.
• Therefore Option B is correct.
వివరణ:
Question 15
ప్రశ్న 15
Which finish is most appropriate where accurately dressed ashlar masonry requires a refined chisel-finished exposed face but not necessarily a high-gloss polish?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Ashlar masonry uses accurately cut and dressed stones with regular beds, joints and faces.
• Fine tooling provides a refined and regular chisel finish suitable for high-quality exposed ashlar construction.
• It represents the finest surface normally obtained with chiselling alone in this type of work.
• A quarry face or irregular rubble face would not provide comparable precision or appearance.
• Therefore Option A is the correct choice.
• Fine tooling provides a refined and regular chisel finish suitable for high-quality exposed ashlar construction.
• It represents the finest surface normally obtained with chiselling alone in this type of work.
• A quarry face or irregular rubble face would not provide comparable precision or appearance.
• Therefore Option A is the correct choice.
వివరణ:
Question 16
ప్రశ్న 16
Which statement correctly distinguishes a fine-tooled surface from a polished surface?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Fine tooling is essentially a cutting and dressing operation carried out with chisels.
• A fine-tooled face is fairly smooth but may retain regular fine tool lines characteristic of the chisel work.
• Polishing proceeds beyond chisel dressing by using abrasive materials to remove progressively finer surface irregularities.
• Suitable stones can then develop the smooth and glossy appearance associated with polished work.
• Therefore Option A correctly distinguishes the two finishes.
• A fine-tooled face is fairly smooth but may retain regular fine tool lines characteristic of the chisel work.
• Polishing proceeds beyond chisel dressing by using abrasive materials to remove progressively finer surface irregularities.
• Suitable stones can then develop the smooth and glossy appearance associated with polished work.
• Therefore Option A correctly distinguishes the two finishes.
వివరణ:
Question 17
ప్రశ్న 17
An architect specifies a high-gloss finish for a marble wall lining. Which operation is most appropriate after the necessary shaping and preliminary smoothing?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A high-gloss finish requires a much finer treatment than hammering, punching or ordinary tooling.
• Abrasive materials progressively remove scratches and minor surface irregularities after the stone has been brought to its required shape and plane.
• Final polishing develops the characteristic smooth reflective finish of suitable marble and similar stones.
• Punch marks and increased bushing deliberately create roughness rather than gloss.
• Therefore Option B is the correct finishing procedure.
• Abrasive materials progressively remove scratches and minor surface irregularities after the stone has been brought to its required shape and plane.
• Final polishing develops the characteristic smooth reflective finish of suitable marble and similar stones.
• Punch marks and increased bushing deliberately create roughness rather than gloss.
• Therefore Option B is the correct finishing procedure.
వివరణ:
Question 18
ప్రశ్న 18
Which sequence represents a logical progression toward increasingly refined chisel dressing?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Punched dressing reduces a rough surface with a punch chisel and leaves recognizable parallel ridges or marks.
• Close picking further refines the punched face using a point chisel so that the remaining marks become much smaller.
• Fine tooling then removes further projections and produces a fairly smooth and regular chisel-finished surface.
• Abrasive polishing, if required, would be a later and different finishing operation rather than part of this chisel sequence.
• Therefore Option B gives the correct progression.
• Close picking further refines the punched face using a point chisel so that the remaining marks become much smaller.
• Fine tooling then removes further projections and produces a fairly smooth and regular chisel-finished surface.
• Abrasive polishing, if required, would be a later and different finishing operation rather than part of this chisel sequence.
• Therefore Option B gives the correct progression.
వివరణ:
Question 19
ప్రశ్న 19
Match the dressing operation with the tool or method most characteristically associated with it:
1. Rough tooling
2. Punched dressing
3. Close picking
4. Polishing
P. Point chisel
Q. Plane chisel
R. Punch chisel
S. Abrasive rubbing
1. Rough tooling
2. Punched dressing
3. Close picking
4. Polishing
P. Point chisel
Q. Plane chisel
R. Punch chisel
S. Abrasive rubbing
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Rough tooling characteristically uses a plane chisel to produce broad and approximately parallel tool bands, so 1-Q is correct.
• Punched dressing is performed with a punch chisel, giving 2-R.
• Close picking refines a punched surface with a point chisel, giving 3-P.
• Polishing relies on abrasive treatment rather than coarse chiselling, giving 4-S.
• Therefore the correct matching is 1-Q, 2-R, 3-P and 4-S, corresponding to Option A.
• Punched dressing is performed with a punch chisel, giving 2-R.
• Close picking refines a punched surface with a point chisel, giving 3-P.
• Polishing relies on abrasive treatment rather than coarse chiselling, giving 4-S.
• Therefore the correct matching is 1-Q, 2-R, 3-P and 4-S, corresponding to Option A.
వివరణ:
Question 20
ప్రశ్న 20
When accurately preparing a stone block, why are datum edges and marginal drafts established before the enclosed surface is fully worked?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Accurate stone dressing requires reliable geometric references from which the remainder of the block can be worked.
• Datum edges provide controlled reference lines, while marginal drafts define accurate portions of the surface near its boundaries.
• The dresser can use these references to check the intermediate face, adjacent beds and joints for correct alignment and dimensions.
• This improves squareness, accuracy and consistency in high-quality masonry work.
• Therefore Option A correctly explains their purpose.
• Datum edges provide controlled reference lines, while marginal drafts define accurate portions of the surface near its boundaries.
• The dresser can use these references to check the intermediate face, adjacent beds and joints for correct alignment and dimensions.
• This improves squareness, accuracy and consistency in high-quality masonry work.
• Therefore Option A correctly explains their purpose.
వివరణ:
Question 21
ప్రశ్న 21
A wall is intended to receive plaster, and an expensive fine-polished finish is proposed for the concealed stone face. What is the most appropriate engineering judgement?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The degree of dressing should be selected according to the functional and architectural requirement of the particular surface.
• A surface that will be concealed by plaster does not normally need the high-quality appearance of fine tooling or polishing.
• Sufficient dressing is still required to permit proper laying, adequate joints and satisfactory plastering.
• Unnecessary high-grade finishing would add labour, tooling effort and cost without giving a corresponding functional advantage.
• Therefore Option B is the appropriate engineering and economic judgement.
• A surface that will be concealed by plaster does not normally need the high-quality appearance of fine tooling or polishing.
• Sufficient dressing is still required to permit proper laying, adequate joints and satisfactory plastering.
• Unnecessary high-grade finishing would add labour, tooling effort and cost without giving a corresponding functional advantage.
• Therefore Option B is the appropriate engineering and economic judgement.
వివరణ:
Question 22
ప్రశ్న 22
An exposed masonry facade is intended to retain a deliberately rugged natural-looking central face while maintaining crisp rectangular outlines around each block. Which finish is most suitable?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The required architectural expression combines a deliberately rough central face with accurately controlled block boundaries.
• Rock-facing preserves the rugged projection of the main face rather than flattening it uniformly.
• Chisel-drafted margins around the edges provide the crisp rectangular outline specified in the question.
• Fine tooling or polishing would remove much of the intended natural-looking roughness.
• Therefore Option B is the most appropriate finish.
• Rock-facing preserves the rugged projection of the main face rather than flattening it uniformly.
• Chisel-drafted margins around the edges provide the crisp rectangular outline specified in the question.
• Fine tooling or polishing would remove much of the intended natural-looking roughness.
• Therefore Option B is the most appropriate finish.
వివరణ:
Question 23
ప్రశ్న 23
Which statement about a self-faced stone surface is most appropriate?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Some natural stones split or are obtained from the quarry with surfaces already suitable for certain construction applications.
• Such surfaces may be used substantially as obtained without extensive additional dressing of the exposed face.
• Self-faced slabs are encountered in applications such as roofing, flooring or lintels where the natural quarry surface is suitable.
• The term does not imply a polished finish or an artificial surface coating.
• Therefore Option A correctly describes a self-faced stone surface.
• Such surfaces may be used substantially as obtained without extensive additional dressing of the exposed face.
• Self-faced slabs are encountered in applications such as roofing, flooring or lintels where the natural quarry surface is suitable.
• The term does not imply a polished finish or an artificial surface coating.
• Therefore Option A correctly describes a self-faced stone surface.
వివరణ:
Question 24
ప్రశ్న 24
A sound stone intended for a decorative moulded cornice must be dressed repeatedly to the same complex profile. Which procedure gives the best dimensional control?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Repeated moulded architectural work requires each stone to reproduce the specified profile consistently.
• A full-size layout establishes the exact geometry required for the moulding.
• Templates prepared from this layout provide a reliable reference against which individual stones can be dressed.
• Working only by visual judgement would increase dimensional variation and produce irregular joints and profiles.
• Therefore Option B is the appropriate procedure.
• A full-size layout establishes the exact geometry required for the moulding.
• Templates prepared from this layout provide a reliable reference against which individual stones can be dressed.
• Working only by visual judgement would increase dimensional variation and produce irregular joints and profiles.
• Therefore Option B is the appropriate procedure.
వివరణ:
Question 25
ప్రశ్న 25
For stone voussoirs in a properly formed masonry arch, how should dressing differ from ordinary rectangular block dressing?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• An arch transfers compressive forces through a curved ring formed by individual voussoirs.
• The joints between adjacent voussoirs should therefore follow radial directions appropriate to the arch geometry.
• This requires the stones to be dressed into suitable wedge shapes instead of ordinary rectangular blocks.
• Accurate radial dressing also promotes reasonably uniform joints and proper contact between neighbouring stones.
• Hence Option A correctly identifies the special dressing requirement for arch work.
• The joints between adjacent voussoirs should therefore follow radial directions appropriate to the arch geometry.
• This requires the stones to be dressed into suitable wedge shapes instead of ordinary rectangular blocks.
• Accurate radial dressing also promotes reasonably uniform joints and proper contact between neighbouring stones.
• Hence Option A correctly identifies the special dressing requirement for arch work.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: B. To obtain the required size, shape, surface finish and jointing faces for its intended construction use సమాధానం: B.
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Question 2 ప్రశ్న 2Answer: C. A comparatively even surface with sharp and irregular corners removed so that the stone can fit properly in masonry సమాధానం: C.
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Question 3 ప్రశ్న 3Answer: C. Only the face to be plastered fails. సమాధానం: C.
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Question 4 ప్రశ్న 4Answer: A. The principal face is left substantially rough while a chisel-drafted margin is provided along the edges. సమాధానం: A.
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Question 5 ప్రశ్న 5Answer: B. Margins of 25, 25, 27 and 30 mm సమాధానం: B.
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Question 6 ప్రశ్న 6Answer: A. A narrow accurately dressed strip formed near an edge of the stone to establish a controlled margin or plane సమాధానం: A.
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Question 7 ప్రశ్న 7Answer: B. Plane chisel producing comparatively broad, approximately parallel bands or tool marks over the surface సమాధానం: B.
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Question 8 ప్రశ్న 8Answer: B. The surface fails the specified rough-tooling tolerance. సమాధానం: B.
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Question 9 ప్రశ్న 9Answer: A. A rough surface is further worked with a punch chisel to produce a more even face with characteristic ridges or punch marks. సమాధానం: A.
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Question 10 ప్రశ్న 10Answer: B. It satisfies the stated surface-evenness requirement. సమాధానం: B.
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Question 11 ప్రశ్న 11Answer: C. Close picked సమాధానం: C.
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Question 12 ప్రశ్న 12Answer: B. It requires further dressing because it exceeds the specified 1.5 mm limit. సమాధానం: B.
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Question 13 ప్రశ్న 13Answer: B. A close-picked surface further dressed to remove projections and obtain a fairly smooth, regular chisel-finished face సమాధానం: B.
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Question 14 ప్రశ్న 14Answer: B. 3 to 4 lines per centimetre సమాధానం: B.
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Question 15 ప్రశ్న 15Answer: A. Fine tooled సమాధానం: A.
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Question 16 ప్రశ్న 16Answer: A. Fine tooling is produced principally by close chisel work, whereas polishing uses progressively finer abrasive treatment to obtain a smooth high-gloss finish. సమాధానం: A.
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Question 17 ప్రశ్న 17Answer: B. Use progressively finer suitable abrasives followed by the required final polishing operation. సమాధానం: B.
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Question 18 ప్రశ్న 18Answer: B. Punched → close picked → fine tooled సమాధానం: B.
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Question 19 ప్రశ్న 19Answer: A. 1-Q, 2-R, 3-P, 4-S సమాధానం: A.
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Question 20 ప్రశ్న 20Answer: A. They provide reference lines and planes for checking dimensions, squareness and surface accuracy during further dressing. సమాధానం: A.
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Question 21 ప్రశ్న 21Answer: B. The degree of dressing should normally be limited to that required for proper masonry and plastering because polishing a concealed face provides little functional benefit. సమాధానం: B.
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Question 22 ప్రశ్న 22Answer: B. Rock-faced finish with chisel-drafted margins సమాధానం: B.
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Question 23 ప్రశ్న 23Answer: A. It is a usable natural surface of a stone slab as obtained from the quarry, requiring little or no additional face dressing for the intended application. సమాధానం: A.
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Question 24 ప్రశ్న 24Answer: B. Prepare a full-size layout and suitable template, then dress the stones accurately to that template. సమాధానం: B.
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Question 25 ప్రశ్న 25Answer: A. The stones should be dressed to the required wedge shape so that their joints are properly radial. సమాధానం: A.