What is the relation between LLR (Line of Least Resistance) and amount of explosives

to be used?

a) Higher the LLR, higher the amount of explosive

b) Higher the LLR, lesser the amount of explosive

c) 10% more explosive for every 1m of LLR

d) 10% less explosive for every 1m of LLR

Which of the following is not an explosive used for blasting?

a) Gelignite

b) Gunpowder

c) Flash powder

d) Nitrocellulose

Which type of dressing does the figure below represents

a) Pitch faced dressing

b) Furrowed finish

c) Combed finish

d) Fine tooling

What is used to accelerate the process of rubbing in rubbed finish dressing?

a) Water

b) Water and sand

c) Clay

d) Pebbles

Dressing of stones is carried out to:

a) To provide employment to people

b) To make transport of stones to site easy and economic

c) To reduce water content of stone

d) To avoid further works on the stone

How many types of dressings are there with respect to the place of work?

a) 4

b) 3

c) 2

d) None

Circular finished stones are generally used for:

a) Pillar

b) Tombstone

c) Landscaping

d) Column

Quarry faced finished stones are also called:

a) Reticulated finish

b) Hammer faced finished

c) Rock faced stones

d) Plain finish

Dynamite is a more effective explosive than gelignite.

a) True

b) False

What is sand blasting?

a) Process of making carvings on stone surface

b) Quarrying technique

c) Dressing type

d) Process of using sand to blast stone surface

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