Stones And Its Properties

10 Questions | By Amruthanagaraj6 | Updated: Apr 18, 2020 | Attempts: 68

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1.

1. For a good building stone how much is the required crushing strength?
- A.
  
  Less than 50 N/mm²
- B.
  
  Greater than 100 N/mm²
- C.
  
  155 N/mm²
- D.
  
  10 N/mm²
2.

What is the required specific gravity for a good building stone?
- A.
  
  Greater than 2.7
- B.
  
  Less than 3
- C.
  
  Greater than 3
- D.
  
  Less than 2.7
3.

Hardness is an important parameter considered in the construction of:
- A.
  
  Slab
- B.
  
  Walls
- C.
  
  Bridge
- D.
  
  Arches
4.

Granite is not suitable for ordinary building purpose because
- A.
  
  It can not be polished
- B.
  
  It has not a fire resistance
- C.
  
  It is costly
- D.
  
  It has less crushing strength
5.

The percentage absorption by weight of a good stone, after how many hours should not exceed 0 .6
- A.
  
  12 hours
- B.
  
  14hours
- C.
  
  18hours
- D.
  
  24 hours
6.

Toughness index of a good stone should be more than:
- A.
  
  A) 17
- B.
  
  B) 18
- C.
  
  C) 13
- D.
  
  D) 19
7.

What texture should a building stone possess?b) Crystalline structure c) Cavities d) Cracks
- A.
  
  A) Loose grains
- B.
  
  Crystalline structure
- C.
  
  Cavities
- D.
  
  Cracks
8.

The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as
- A.
  
  Quarrying of stone
- B.
  
  Seasoning of stone
- C.
  
  Blasting of stone
- D.
  
  Dressing of stone
9.

Why are stones with lighter shades of colour preferred?
- A.
  
  A) Easy to clean
- B.
  
  B) Easily available
- C.
  
  C) Don’t spoil the appearance
- D.
  
  D) Darker shades are heavier
10.

Which of the following stone is best suited for construction of piers and abutments of a railway bridge ?
- A.
  
  Granite
- B.
  
  Sand stone
- C.
  
  Lime stone
- D.
  
  Quartzite