361. What is the common name for a mixture of lime, sand, and water used as a traditional mortar?
a) Lime putty
b) Lime plaster
c) Lime wash
d) Lime mortar
View Answer
Correct answer: d) Lime mortar
Explanation: Lime mortar is a mixture of lime, sand, and water used as a traditional mortar for masonry construction.
362. Which type of lime mortar hardens through a process of carbonation?
a) Hydraulic lime mortar
b) Quicklime mortar
c) Dolomitic lime mortar
d) Non-hydraulic lime mortar
View Answer
Correct answer: d) Non-hydraulic lime mortar
Explanation: Non-hydraulic lime mortar hardens through a process of carbonation, where it absorbs carbon dioxide from the air to convert it back into calcium carbonate.
363. Which property of lime mortar allows it to accommodate slight movement in masonry without cracking?
a) Plasticity
b) Durability
c) Adhesion
d) Flexibility
View Answer
Correct answer: d) Flexibility
Explanation: Lime mortar possesses flexibility, allowing it to accommodate slight movement in masonry without cracking, which is important for the longevity of the structure.
364. Which type of lime is commonly used for soil stabilization and improvement in construction?
a) Hydraulic lime
b) Quicklime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: a) Hydraulic lime
Explanation: Hydraulic lime is commonly used for soil stabilization and improvement in construction, as it can bind with soil particles and improve its engineering properties.
365. Which type of lime is commonly used for white washing or lime washing of walls?
a) Hydraulic lime
b) Quicklime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: d) Slaked lime
Explanation: Slaked lime is commonly used for white washing or lime washing of walls, providing a protective and decorative coating.
366. What is the term for the process of applying lime wash to a surface?
a) Lime coating
b) Lime sealing
c) Lime rendering
d) Lime washing
View Answer
Correct answer: d) Lime washing
Explanation: The term for the process of applying lime wash to a surface is lime washing. It involves brushing or spraying a diluted lime mixture onto the surface.
367. Which type of lime is commonly used for tanning hides and as an additive in animal feed?
a) Hydraulic lime
b) Quicklime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: b) Quicklime
Explanation: Quicklime is commonly used for tanning hides and as an additive in animal feed due to its alkaline properties.
368. What is the term for a fine powder produced by grinding quicklime, commonly used as a soil amendment?
a) Lime putty
b) Lime plaster
c) Lime wash
d) Lime powder
View Answer
Correct answer: d) Lime powder
Explanation: Lime powder is a fine powder produced by grinding quicklime and is commonly used as a soil amendment to improve pH and soil fertility.
369. Which type of lime is commonly used in the preservation and restoration of historic lime-based buildings?
a) Hydraulic lime
b) Quicklime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: a) Hydraulic lime
Explanation: Hydraulic lime is commonly used in the preservation and restoration of historic lime-based buildings due to its compatibility with the original lime mortar and its ability to set underwater.
370. Which property of lime makes it suitable for use in hot and humid climates?
a) Insulating
b) Fire-resistant
c) Breathable
d) Waterproof
View Answer
Correct answer: c) Breathable
Explanation: Lime is breathable, allowing moisture vapor to pass through it. This property makes it suitable for use in hot and humid climates by helping regulate moisture within the walls.
