250+ TOP MCQs on Floors and its Types and Answers

Construction and Building Materials Multiple Choice Questions on “Floors and its Types”.

1. The exposed term surfaces of floors are termed as the ____________
a) Roofs
b) Floors
c) Flooring
d) Roofing

Answer: c
Clarification: The ground floor or basement floors with directly rest on the ground do not require the provision of a floor. But they are provided with a suitable type of floor covering or simply flooring.

2. The other floors of each storey about the ground level are known as the ___________
a) Roofing
b) Upper floor
c) Lower floor
d) Roof

Answer: b
Clarification: The major problems of ground and basement floors are damp exclusion and the thermal insulation. The moisture is generally present in the ground and unless suitable measures are taken to prevent its entry, it will pass into the building through floors.

3. In auditoriums, to carry out dances or Dramas, the ____________ are constructed on the ground floor.
a) Composite floors
b) Jack arch floors
c) RCC floors
d) Basement timber floors

Answer: d
Clarification: In Basement or ground floor of timber, the sleepers walls which may be one half Brick or one brick thickness are constructed at centre to Centre distance of 1.20 metre to 1.80 metre. The wall plates are provided along the wall as well as along the sleeper walls and they reduce the span of the bridging joist.

4. ______________ floors consists of single joist which are placed below the floor boards.
a) Single joint timber floor
b) Single joist timber floor
c) Single timber floor
d) Joist Floor

Answer: b
Clarification: The joists are usually placed at the centre to Centre distance of 300 mm to 450 mm. The joists are supported on the wall plates at their ends. The space of about 50 mm is kept for the circulation of the air.

5. In ___________________ floors, the intermediate supports, known as the binders, provided for the bridging joists.
a) Single joists timber floor
b) Double joists timber floor
c) Bridging joists
d) Triple Joist timber floor

Answer: b
Clarification: The binders are generally placed at the centre to Centre distance of 1.8 metre to 2.4 meters. The ends of Binder rest on the wooden or stone blocks. The double joist Timber floor are stronger than the single joist Timber floor.

6. In ______________ floors, intermediate supports, known as the girders, provided for the binders.
a) Single Joist timber floor
b) Double joists timber floor
c) Triple Joist timber floor
d) Tetra Joist timber floor

Answer: c
Clarification: The Triple Joist timber floor consists of girders, binders, a bridging joists and floor boards. The girders are generally placed at a Centre to Centre distance of 3 meters. The binders are staggered and connected to the girders by tusk and tenon joints.

7. In _________________ floors, the flag stones are used in the two layers.
a) Double flagstones floors
b) Single flagstones floors
c) Triple flagstones floors
d) Filler joists timber floors

Answer: a
Clarification: In Double flagstones floors, the steel beams are placed at a distance of about 3 meters Centre to centre and the joist are placed at right angles to the beans. The Flagstones of about 14 mm thickness and of suitable width are fixed on the lower flanges and upper flanges.

8. In ________________ floors, the small sections of rolled Steel joists are placed in concrete.
a) Jack arch floors
b) RCC floor
c) Rib floor
d) Filler joists

Answer: d
Clarification: The joists may be either rest on wall or on Steel beam. The joists act as reinforcement and are spaced at a centre to Centre distance of 600 mm to 900 mm.

9. In _____________ floors, the brick arches or cement concrete arches are constructed and these arches rest on the lower flanges of mild steel joists.
a) Filler Joist
b) Pre cast Concrete
c) Jack arch
d) Hollow block

Answer: c
Clarification: In Jack arch floors, the joists in turn raised either on wall around beam. The joists are placed at a distance of about 800 mm to 1200 mm Centre to centre. The rise of arches should be 100 mm to 200 mm and the minimum depth of concrete at the Crown should be 150 mm.

10. In ________________ floors, the Steel bars and concrete are used to form of floor.
a) Hollow block
b) Precast concrete
c) RCC
d) Jack arch

Answer: c
Clarification: RCC floor is widely used in Modern construction. The slab and beam design as per loading coming on the floor and proper Reinforcement is placed at a suitable place.

11. In ______________ floors, the hollow blocks of clay or concrete are used to reduce the total weight of the floor.
a) Hollow block
b) RCC
c) Lapped
d) Jack arch

Answer: a
Clarification: In one form, the blocks are placed 100 mm apart and in this space, the mild steel bars are placed. A minimum cover of 80 mm is kept at the top. Suitable flooring at top and ceiling finish are provided.

12. With the development of _______________ construction technique, it is possible to prepare the precast unit for the floor.
a) Pre cast
b) On site
c) Factory made
d) In situ

Answer: a
Clarification: These precast units are available in suitable sizes as can be conventionally handled, transported and fixed. They may be supported either on walls or on rolled Steel joist.

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