Civil war-Day 18-Oct 14-LSGD-Floors&Roofs

The flooring slab is directly supported on columns without the agency of beams or girders, is known as

• Flat slab
• Beamless slab
• Both A & B
• None of these

Answer explanation

A slab directly resting on columns without beams is called a Flat slab or Beamless slab.

Double joists timber floors used for the span of

• Upto 4 m
• 4.5 to 7 m
• Span beyond 7.5 m
• None of these

Answer explanation

Double joist timber floors are used for spans of 4.5 m to 7 m.

Single joist timber floor is suitable for a maximum span of

• 7.5 m
• 6 m
• 3.6 m
• 2.4 m

Answer explanation

Single joist timber floors are suitable for short spans up to about 3.6 m.

A roof sloped in two directions, but there is a break in each slope

• Gable Roof
• Gambrel Roof
• Mansard Roof
• Lean to Roof

Answer explanation

A Gambrel roof has two slopes on each side, the lower being steeper.

The inclined braces used in a truss to prevent the sagging of the principal rafter are called

• purlin
• straining beam
• strut
• tie beam

Answer explanation

The struts are the inclined compression members in a truss, used to prevent sagging of the principal rafters.

Which of the following floor is noise-proof and hence preferred in libraries, theaters, and broadcasting stations

• Cork
• Linoleum
• Terrazo
• Rubber

Answer explanation

Cork flooring absorbs sound effectively and is used in libraries and studios.

Jack arch floors are................

• composite floors
• Timber floors
• glass floors
• none of these

Answer explanation

Jack arch floors are composite structures with brick arches supported on steel joists.

In folded plate roofs, form work can be removed after how many days

• 7 Days
• 3 Days
• 14 Days
• 21 Days

Answer explanation

For folded plate roofs, formwork should be removed after about 7 days

The triangular upper part of wall formed at the end of pitched roof is known as

• Gable
• Ridge
• Hip
• Eaves

Answer explanation

The gable is the triangular upper portion of a wall at the end of a pitched roof.

Truss similar to a mansard truss, except that the top is finished flat with a gentle slope to one side

• King post truss
• Queen post truss
• Truncated truss
• Bel-fast truss

Answer explanation

A truncated truss resembles a mansard truss but has a flat, gently sloping top.