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1.	Which of the following is not a part of scaffolding?1). Ledgers2). Boarding3). Putlogs4). Rakers
Answer» Parts of Scaffolding: Standards – These are the vertical posts. Ledgers – The horizontal member PARALLEL to the wall. Putlogs – Horizontal member normal to the wall. Braces – These are diagonal member fixed on standards. Boarding – These are the planks on which WORKERS stand. Guard Rail – This is a railing PROVIDED LIKE ledger at a height of around 1.0 m. Shoring Rakers are the part of Shoring.

Which of the following is not a part of scaffolding?1). Ledgers2). Boarding3). Putlogs4). Rakers

Answer»

Parts of Scaffolding:

Standards – These are the vertical posts.

Ledgers – The horizontal member PARALLEL to the wall.

Putlogs – Horizontal member normal to the wall.

Braces – These are diagonal member fixed on standards.

Boarding – These are the planks on which WORKERS stand.

Guard Rail – This is a railing PROVIDED LIKE ledger at a height of around 1.0 m.

Shoring

Rakers are the part of Shoring.

Discussion

2.	1). floating2). curing3). screeding4). Trowelling
Answer» The finishing of the concrete surface is finally achieved by the following operations: 1. Curing: It is the process of HARDENING the concrete mixes by keeping its surface moist for a certain period, in order to enable the concrete to gain more strength. 2. Screeding: it is the levelling operation that removes humps and hollows and gives a TRUE and uniform concrete surface. 3. Floating: It is the process of removing the irregularities from the surface of concrete left after screening. 4. TROWELLING: It is the final operation of finishing the concrete surface. It is PERFORMED where a smooth and DENSE surface is required.

1). floating2). curing3). screeding4). Trowelling

Answer»

The finishing of the concrete surface is finally achieved by the following operations:

1. Curing: It is the process of HARDENING the concrete mixes by keeping its surface moist for a certain period, in order to enable the concrete to gain more strength.

2. Screeding: it is the levelling operation that removes humps and hollows and gives a TRUE and uniform concrete surface.

3. Floating: It is the process of removing the irregularities from the surface of concrete left after screening.

4. TROWELLING: It is the final operation of finishing the concrete surface. It is PERFORMED where a smooth and DENSE surface is required.

Discussion