461. Which type of lime is commonly used for the preparation of lime wash?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: a) Fat lime
Explanation: Fat lime is commonly used for the preparation of lime wash, which is a traditional technique used for coating and whitewashing walls.
462. Which type of lime is commonly used for the preparation of lime putty?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: a) Fat lime
Explanation: Fat lime is commonly used for the preparation of lime putty, which is a paste-like material obtained by slaking fat lime with water.
463. Which type of lime is commonly used in the conservation and restoration of historic buildings?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: b) Hydraulic lime
Explanation: Hydraulic lime is commonly used in the conservation and restoration of historic buildings due to its compatibility with traditional lime-based materials.
464. Which type of lime has lower strength compared to hydraulic lime?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: a) Fat lime
Explanation: Fat lime has lower strength compared to hydraulic lime. It sets and hardens through carbonation and is less suitable for structural applications.
465. Which type of lime is commonly used for the preparation of lime-sand bricks and blocks?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: b) Hydraulic lime
Explanation: Hydraulic lime is commonly used for the preparation of lime-sand bricks and blocks due to its hydraulic properties and ability to bind with sand particles.
466. Which type of lime has good plasticity and workability, making it suitable for molding into complex shapes?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: c) Dolomitic lime
Explanation: Dolomitic lime has good plasticity and workability, making it suitable for molding into complex shapes, such as ornamental elements and sculptures.
467. Which type of lime is produced by the calcination of dolomitic limestone?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: c) Dolomitic lime
Explanation: Dolomitic lime is produced by the calcination of dolomitic limestone, which contains both calcium carbonate and magnesium carbonate.
468. Which type of lime is commonly used for the preparation of lime-sand mortars?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: b) Hydraulic lime
Explanation: Hydraulic lime is commonly used for the preparation of lime-sand mortars, which are used in masonry construction.
469. Which type of lime has the ability to self-heal cracks and improve durability through the formation of calcium carbonate crystals?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: b) Hydraulic lime
Explanation: Hydraulic lime has the ability to self-heal cracks and improve durability through the formation of calcium carbonate crystals. This process is known as autogenous healing.
470. Which type of lime is commonly used for the preparation of lime plaster with a smooth and fine finish?
a) Fat lime
b) Hydraulic lime
c) Dolomitic lime
d) Slaked lime
View Answer
Correct answer: b) Hydraulic lime
Explanation: Hydraulic lime is commonly used for the preparation of lime plaster with a smooth and fine finish. It allows for better workability and adhesion.
